The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy.The REF19x series is made up of micropower, low dropout voltage (LDV) devices, providing stable output voltage from supplies as low as 100 mV above the output voltage and consuming less than 45 μA of supply current. In sleep mode, which is enabled by applying a low TTL or CMOS level to the SLEEP pin, the output is turned off and supply current is further reduced to less than 15 μA.The REF19x series references are specified over the extended industrial temperature range (−40°C to +85°C) with typical performance specifications over −40°C to +125°C for applications, such as automotive.All electrical grades are available in an 8-lead SOIC package; the PDIP and TSSOP packages are available only in the lowest electrical grade.APPLICATIONS Portable instruments ADCs and DACs Smart sensors Solar powered applications Loop-current-powered instruments

The MAX1630A–MAX1635A are buck-topology, stepdown, switch-mode, power-supply controllers that generate logic-supply voltages in battery-powered systems. These high-performance, dual-/triple-output devices include on-board power-up sequencing, power-good signaling with delay, digital soft-start, secondary winding control, low-dropout circuitry, internal frequency-compensation networks, and automatic bootstrapping.Up to 96% efficiency is achieved through synchronous rectification and Maxim's proprietary Idle Mode™ control scheme. Efficiency is greater than 80% over a 1000:1 load-current range, which extends battery life in system-suspend or standby mode. Excellent dynamic response corrects output load transients caused by the latest dynamic-clock CPUs within five 300kHz clock cycles. Strong 1A on-board gate drivers ensure fast external n-channel MOSFET switching.These devices feature a logic-controlled and synchronizable, fixed-frequency, pulse-width-modulation (PWM) operating mode. This reduces noise and RF interference in sensitive mobile communications and pen-entry applications. Asserting the Active-Low SKIP pin enables fixed-frequency mode for lowest noise under all load conditions.The MAX1630A–MAX1635A include two PWM regulators, adjustable from 2.5V to 5.5V with fixed 5.0V and 3.3V modes. All these devices include secondary feedback regulation, and the MAX1630A/MAX1632A/MAX1633A/MAX1635A each contain 12V/120mA linear regulators. The MAX1631A/MAX1634A include a secondary feedback input (SECFB), plus a control pin (STEER) that selects which PWM (3.3V or 5V) receives the secondary feedback signal. SECFB provides a method for adjusting the secondary winding voltage regulation point with an external resistor-divider, and is intended to aid in creating auxiliary voltages other than fixed 12V.The MAX1630A/MAX1631A/MAX1632A contain internal output overvoltage and undervoltage protection features. The MAX1630A family has improved RF immunity over the MAX1630 family.ApplicationsDesktop CPU Local DC-DC ConvertersNotebook and Subnotebook ComputersPDAs and Mobile Communicators

The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756Alow on-resistance, analog switches operate from a single+1.8V to +5.5V supply. The MAX4754/MAX4754A andMAX4755 are dual, double-pole, double-throw (DPDT)switches. The MAX4756/MAX4756A are quad, single-poledouble-throw (SPDT) switches. They are configured toroute either audio or data signals.The MAX4754/MAX4754A have four 0.5Ω SPDT switches for audio-signal routing and two logic control inputs. The MAX4755 has four 0.5Ω SPDT switches (with two switches that have an additional 11Ω series resistor at the NC terminals). This allows users to drive an 8Ω speaker as a 32Ω load (ear speaker). The MAX4756/MAX4756A have four 0.5Ω SPDT switches controlled by one logic control input and an enable input (active-low EN) to disable the switches.The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756Aare available in a space-saving 16-pin TQFN and a tiny16-bump, 2mm x 2mm chip-scale package (UCSP™).ApplicationsAudio-Signal RoutingCell PhonesNotebook ComputersPDAs/Handheld DevicesSpeaker-Headset Switching

The MAX4890/MAX4891/MAX4892 high-speed analog switches meet the needs of 10/100/1000 Base-T applications. These devices switch the signals from two interface transformers and connect the signals to a single 10/100/1000 Base-T Ethernet PHY, simplifying docking station design and reducing manufacturing costs. The MAX4890/MAX4891/MAX4892 can also route signals from a common interface transformer to two different boards in board-redundancy applications.The MAX4890/MAX4891/MAX4892 switches provide an extremely low capacitance and on-resistance to meet Ethernet insertion and return-loss specifications. The MAX4891/MAX4892 feature one and three built-in LED switches, respectively.The MAX4890/MAX4891/MAX4892 are available in space-saving 32- and 36-lead TQFN packages, significantly reducing the required PC board area. These devices operate over the -40°C to +85°C temperature range.ApplicationsBoard-Level Redundancy ProtectionNotebooks and Docking StationsServers and Routers with Ethernet InterfacesSONET/SDH Signal RoutingT3/E3 Redundancy ProtectionVideo Routing and Switching Systems

The MAX5062/MAX5063/MAX5064 high-frequency, 125V half-bridge, n-channel MOSFET drivers drive high-and low-side MOSFETs in high-voltage applications. These drivers are independently controlled and their 35ns typical propagation delay, from input to output, are matched to within 3ns (typ). The high-voltage operation with very low and matched propagation delay between drivers, and high source/sink current capabilities in a thermally enhanced package make these devices suitable for the high-power, high-frequency telecom power converters. The 125V maximum input voltage range provides plenty of margin over the 100V input transient requirement of telecom standards. A reliable on-chip bootstrap diode connected between VDD and BST eliminates the need for an external discrete diode.The MAX5062A/C and the MAX5063A/C offer both noninverting drivers (see the Selector Guide of the full data sheet). The MAX5062B/D and the MAX5063B/D offer a noninverting high-side driver and an inverting low-side driver. The MAX5064A/B offer two inputs per driver that can be either inverting or noninverting. The MAX5062A/B/C/D and the MAX5064A feature CMOS (VDD / 2) logic inputs. The MAX5063A/B/C/D and the MAX5064B feature TTL logic inputs. The MAX5064A/B include a break-before-make adjustment input that sets the dead time between drivers from 16ns to 95ns. The drivers are available in the industry-standard 8-pin SO footprint and pin configuration, and a thermally enhanced 8-pin SO and 12-pin (4mm x 4mm) thin QFN packages. All devices operate over the -40°C to +125°C automotive temperature range.ApplicationsActive-Clamp Forward ConvertersFull-Bridge ConvertersMotor ControlPower-Supply ModulesTelecom Half-Bridge Power SuppliesTwo-Switch Forward Converters

The MAX5073 is a dual-output DC-DC converter with integrated high-side n-channel power MOSFETs. Each output can be configured either as a buck converter or a boost converter. The device is capable of operating from a wide 5.5V to 23V input voltage range. Each output is programmable down to 0.8V in the buck mode and up to 28V in the boost mode with an output voltage accuracy of ±1%. In the buck mode, converter 1 and converter 2 can deliver 2A and 1A, respectively. The output switching frequency of each converter can be programmed from 200kHz to 2.2MHz to avoid harmonics in a radio power supply or to reduce the size of the power supply. Each output operates 180° out-of-phase thus reducing input-capacitor ripple current, size, and cost. A SYNC input facilitates external frequency synchronization. Moreover, a CLKOUT output provides out-of-phase clock signal with respect to converter 2, allowing four-phase operation using two MAX5073 ICs in master-slave configuration.The MAX5073 includes an internal digital soft-start that reduces inrush current, eliminates output-voltage overshoot, and ensures monotonic rise in output voltage during power-up. The device includes individual shutdown and a power-good output for each converter. Protection features include output short-circuit protection for buck mode and maximum duty-cycle limit for boost operation, as well as thermal shutdown.The MAX5073 is available in a thermally enhanced 28-pin thin QFN package that can dissipate 2.7W at +70°C ambient temperature. The device is rated for operation over the -40°C to +85°C extended, or -40°C to +125°C automotive operating temperature range.ApplicationsNetworking Line CardsPoint-of-Load DC-DC ConvertersPower-Over-Ethernet Postregulation for PDsTelecom Line Cards

The MAX5422/MAX5423/MAX5424 nonvolatile, lineartaper,digital potentiometers perform the function of amechanical potentiometer, but replace the mechanicswith a simple 3-wire SPI™-compatible digital interface.Each device performs the same function as a discretepotentiometer or variable resistor and has 256 tap points.The devices feature an internal, nonvolatile EEPROMused to store the wiper position for initialization duringpower-up. The 3-wire SPI-compatible serial interfaceallows communication at data rates up to 5MHz, minimizingboard space and reducing interconnection complexityin many applications.The MAX5422/MAX5423/MAX5424 provide three nominalresistance values: 50kΩ (MAX5422), 100kΩ(MAX5423), or 200kΩ (MAX5424). The nominal resistortemperature coefficient is 35ppm/°C end-to-end andonly 5ppm/°C ratiometric. This makes the devices idealfor applications requiring a low-temperature-coefficientvariable resistor, such as low-drift, programmable gainamplifiercircuit configurations.The MAX5422/MAX5423/MAX5424 are available in a3mm x 3mm 8-pin TDFN package, and are specifiedover the extended -40°C to +85°C temperature range.ApplicationsAudio Volume ControlLiquid-Crystal Display (LCD) Contrast ControlLow-Drift Programmable FiltersLow-Drift Programmable-Gain AmplifiersMechanical Potentiometer Replacements

The MAX4762–MAX4764/MAX4764A/MAX4765 dualSPDT (single-pole/double-throw) switches feature negativesignal capability that allows signals below ground topass through without distortion. These analog switchesoperate from a single +1.8V to +5.5V supply and havelow 0.6Ω on-resistance, making them ideal for switchingaudio signals.The MAX4763/MAX4765 include a comparator that canbe used for headphone detection or a mute/send keyfunction. The MAX4764/MAX4764A/MAX4765 have aninternal shunt switch to automatically discharge anycapacitance at the NO and NC connection points. Thisreduces click-and-pop sounds that occur when switchingaudio signals between precharged points.These SPDT switches are available in space-savingµMAX®, TDFN, thin QFN, and UCSP™ packages andoperate over the -40°C to +85°C extended temperaturerange.ApplicationsCell PhonesMP3 PlayersNotebook ComputersPDAs and Other Handheld Devices

The MAX4795–MAX4798 family of switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These analog switches have a low 0.2Ω on-resistance and operate from a 2.0V to 4.5V input voltage range. They are available with guaranteed 450mA and 500mA current limits, making them ideal for SDIO and other load-switching applications.When the switch is on and a load is connected to the port, a guaranteed blanking time of 14ms ensures the transient voltages settle down. If after this blanking time, the load current is greater than the current limit, the MAX4795 and MAX4797 switches are turned off and active-low FLAG is issued to the microprocessor. The switch can be turned on again by cycling the power or the ON input.The MAX4796 and MAX4798 have an autoretry feature where the switch turns off and issues an active-low FLAG to the microprocessor after the blanking time and then continuously checks to see if the overload condition is present. The switch remains on after the overload condition disappears and active-low FLAG deasserts.The MAX4795–MAX4798 are available in tiny, space-saving, 5-pin SOT23 and 6-pin TDFN (3mm x 3mm) packages.ApplicationsCell PhonesGlobal Positioning Systems (GPS)Handheld DevicesPDAs and Palmtop DevicesSDIO

The MAX5023/MAX5024 high-voltage linear regulatorsoperate from a +6.5V to +65V input voltage and deliverup to 150mA of output current. These devices consumeonly 60µA of quiescent current with no load and withstanda -60V reverse-battery voltage at the input. TheMAX5023/MAX5024 include an active-low internalmicroprocessor (µP) reset circuit that asserts when theregulator output drops below the preset output voltagethreshold by 7.5% or 12.5%, depending on the deviceselected. Both devices are available with a fixed +3.3Vor +5V output. These devices are short-circuit protectedand include thermal shutdown.In addition to an enable input to turn on or off the regulator,the MAX5023/MAX5024 include an active-low HOLD inputthat allows for the implementation of a self-holdingcircuit without requiring external components. Settingactive-low HOLD low after enabling the regulator, forces the regulatorto remain on even if EN is subsequently set low.Releasing active-low HOLD shuts down the regulator.The MAX5023 includes a watchdog input that monitors apulse train from the µP and generates reset pulses if thewatchdog input remains high or low for a duration longerthan the 1.6s watchdog timeout period. The MAX5024includes a SET input which, when connected to ground,selects a preset output voltage of +3.3V (MAX5024S/MAX5024T) or +5V (MAX5024L/MAX5024M). Set theadjustable output voltage by connecting SET to the regulator'soutput through a resistive-divider network.The MAX5023/MAX5024 operate over the automotivetemperature range (-40°C to +125°C) and are availablein a thermally enhanced, surface-mount 8-pin SO-EPpackage.ApplicationsAutomotiveFire/Smoke AlarmsHome SecurityIndustrialTelecom/Networking

The MAX5068 is a high-frequency, current-mode, pulse-width modulation (PWM) controller that integrates all the building blocks necessary for implementing AC-DC or DC-DC fixed-frequency power supplies. Isolated or nonisolated power supplies are easily constructed using either primary- or secondary-side regulation. Current-mode control with leading-edge blanking simplifies control-loop design, and a programmable internal slope-compensation circuit stabilizes the current loop when operating at duty cycles above 50%. The MAX5068A/B limit the maximum duty cycle to 50% for use in single-ended forward converters. The MAX5068C/D/E/F allow duty cycles up to 75%. The MAX5068 features an accurate externally programmable oscillator that simplifies system design.An input undervoltage lockout (UVLO) programs the input-supply startup voltage and ensures proper operation during brownout conditions.A single external resistor programs the output switching frequency from 12.5kHz to 1.25MHz. The MAX5068A/B/C/E provide a SYNC input for synchronization to an external clock. The maximum FET-driver duty cycle is 50% for the MAX5068A/B and 75% for the MAX5068C/D/E/F. Programmable hiccup current limit provides additional protection under severe faults.The MAX5068 is specified over the -40°C to +125°C automotive temperature range and is available in a 16-pin thermally enhanced TSSOP-EP package. Refer to the MAX5069 data sheet for dual FET-driver applications.Warning: The MAX5068 is designed to work with high voltages. Exercise caution.ApplicationsIndustrial Power ConversionIsolated Telecom Power SuppliesNetworking System Power SuppliesServer Power SuppliesUniversal-Input AC Power Supplies

The MAX5522-MAX5525 are dual, 10-bit, ultra-lowpower,voltage-output, digital-to-analog converters(DACs) offering rail-to-rail buffered voltage outputs. TheDACs operate from a 1.8V to 5.5V supply and consumeless than 5µA, making the devices suitable for lowpowerand low-voltage applications. A shutdown modereduces overall current, including the reference inputcurrent, to just 0.18µA. The MAX5522-MAX5525 use a3-wire serial interface that is compatible with SPI™,QSPI™, and MICROWIRE™.Upon power-up, the MAX5522-MAX5525 outputs aredriven to zero scale, providing additional safety forapplications that drive valves or for other transducersthat need to be off during power-up. The zero-scaleoutputs enable glitch-free power-up.The MAX5522 accepts an external reference input andprovides unity-gain outputs. The MAX5523 contains aprecision internal reference and provides a bufferedexternal reference output with unity-gain DAC outputs.The MAX5524 accepts an external reference input andprovides force-sense outputs. The MAX5525 contains aprecision internal reference and provides a bufferedexternal reference output with force-sense DAC outputs.The MAX5524/MAX5525 are available in a 4mm x 4mmx 0.8mm, 12-pin, thin QFN package. The MAX5522/MAX5523 are available in an 8-pin µMAX package. Alldevices are guaranteed over the extended -40°C to+85°C temperature range.For 12-bit compatible devices, refer to the MAX5532-MAX5535 data sheet. For 8-bit compatible devices,refer to the MAX5512-MAX5515 data sheet.ApplicationsAutomatic Trimming and Calibration in Factory or FieldChemical Sensor Cell Bias for Gas MonitorsIndustrial Process Control and Remote Industrial DevicesPortable Battery-Powered Devices InstrumentationProgrammable LCD BiasProgrammable Voltage and Current SourcesRemote Data Conversion and Monitoring

The MAX5932 is a fully integrated hot-swap controller for+9V to +80V positive supply rails. The MAX5932 allowsfor the safe insertion and removal of circuit cards into alive backplane without causing glitches on the backplanepower-supply rail. This device is pin and functioncompatible to LT1641-1. The MAX5932 features a programmablefoldback-current limit. If the device remainsin current limit for more than a programmable time, theexternal n-channel MOSFET latches off. Other featuresinclude a programmable undervoltage lockout and aprogrammable output-voltage slew rate through anexternal n-channel MOSFET.The MAX5932 provides a power-good output (PWRGD)to indicate the status of the output voltage. For a varietyof PWRGD/PWRGD-bar, latch/autoretry-fault management,autoretry duty-cycle options, refer to the MAX5933 andMAX5934 data sheets.The MAX5932 operates in the -40°C to +85°C extendedtemperature range. This device is available in an8-pin SO package.Applications24V/48V Industrial/Alarm SystemsElectronic Circuit BreakersHot Board InsertionIndustrial High-Side Switch/Circuit BreakersNetwork Routers and Switches

The MAX6037 family of low-dropout, micropower voltage references offer fixed and adjustable output voltage options ranging from 1.184V to 5V. Connect an external resistive-divider on the MAX6037_ADJ to adjust the output voltage from 1.184V to 5V. The other devices in the MAX6037 family feature fixed output voltages of 1.25V, 2.048V, 2.5V, 3.0V, 3.3V, and 4.096V. The MAX6037 offers shutdown functionality with an active-low shutdown (500nA, max).These series-mode voltage references operate from a 2.5V to 5.5V supply and consume 275µA (max) quiescent current. The output is stable driving loads from 0.02µF to 1µF and can source and sink 5mA of load current. The MAX6037 offers a low temperature coefficient of 25ppm/°C and initial accuracy of ±0.2% (max). The low dropout voltage (100mV, max at 1mA) and supply-independent, low supply current make the MAX6037 ideal for battery-powered applications.The MAX6037 is available in the miniature 5-pin SOT23 package and is specified over the -40°C to +125°C automotive temperature range.ApplicationsMedical EquipmentPortable EquipmentPrecision RegulatorsWireless Local Area Networks (WLANs)

The MAX6037 family of low-dropout, micropower voltage references offer fixed and adjustable output voltage options ranging from 1.184V to 5V. Connect an external resistive-divider on the MAX6037_ADJ to adjust the output voltage from 1.184V to 5V. The other devices in the MAX6037 family feature fixed output voltages of 1.25V, 2.048V, 2.5V, 3.0V, 3.3V, and 4.096V. The MAX6037 offers shutdown functionality with an active-low shutdown (500nA, max).These series-mode voltage references operate from a 2.5V to 5.5V supply and consume 275µA (max) quiescent current. The output is stable driving loads from 0.02µF to 1µF and can source and sink 5mA of load current. The MAX6037 offers a low temperature coefficient of 25ppm/°C and initial accuracy of ±0.2% (max). The low dropout voltage (100mV, max at 1mA) and supply-independent, low supply current make the MAX6037 ideal for battery-powered applications.The MAX6037 is available in the miniature 5-pin SOT23 package and is specified over the -40°C to +125°C automotive temperature range.ApplicationsMedical EquipmentPortable EquipmentPrecision RegulatorsWireless Local Area Networks (WLANs)

The MAX6126 is an ultra-low-noise, high-precision, low-dropout voltage reference. This family of voltage references feature curvature-correction circuitry and high-stability, laser-trimmed, thin-film resistors that result in 3ppm/°C (max) temperature coefficients and an excellent ±0.02% (max) initial accuracy. The proprietary low-noise reference architecture produces a low flicker noise of 1.3µVP-P and wideband noise as low as 60nV/√Hz (2.048V output) without the increased supply current usually found in low-noise references. Improve wideband noise to 35nV/√Hz and AC power-supply rejection by adding a 0.1µF capacitor at the noise reduction pin. The MAX6126 series mode reference operates from a wide 2.7V to 12.6V supply voltage range and load-regulation specifications are guaranteed to be less than 0.025Ω for sink and source currents up to 10mA. These devices are available over the automotive temperature range of -40°C to +125°C.The MAX6126 typically draws 380μA of supply current and is available in 2.048V, 2.500V, 2.800V, 3.000V, 3.300V, 3.600V, 4.096V, and 5.000V output voltages. The MAX6126 also feature dropout voltages as low as 200mV. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, the MAX6126 offers supply current that is virtually independent of supply voltage and does not require an external resistor. The MAX6126 is stable with 0.1µF to 10µF of load capacitance.The MAX6126 is available in the tiny 8-pin µMAX®, as well as 8-pin SO packages.ApplicationsAutomated Test Equipment (ATE)Digital VoltmetersHigh-Accuracy Industrial and Process ControlHigh-Accuracy Reference StandardHigh-Resolution A/D and D/A ConvertersPrecision Current Sources

The MAX6754–MAX6764 low-power window detectors monitor undervoltage/overvoltage conditions on system power supplies. These devices assert when the monitored voltage is under the undervoltage and/or over theovervoltage thresholds.The MAX6754–MAX6759/MAX6763/MAX6764 monitor a single voltage. The MAX6760/MAX6761/MAX6762 monitor dual-voltage systems. The MAX6754/MAX6755/MAX6756 provide a single undervoltage/overvoltage output and the MAX6757–MAX6764 provide independent undervoltage and overvoltage outputs. The outputs are available in push-pull or open-drain configurations.The MAX6754–MAX6762 offer factory-fixed voltage thresholds for monitoring system voltages from 0.9V to 5V with a selectable ±5%, ±10%, or ±15% window voltage. The MAX6763/MAX6764 allow for externally adjustable thresholds. The MAX6754–MAX6762 are available in two delay timing options (20µs, typ or 100ms, min). The MAX6760/MAX6761/MAX6762 also include a latched overvoltage output function and the MAX6754–MAX6762 include a manual reset input.The family of products is available in small SOT23 and TDFN packages and is specified over the extended temperature range of -40°C to +125°C.ApplicationsAutomotiveComputers/ServersData StorageDC-DC ConvertersModulesNetworkingPower MeteringTelecommunications

The MAX1192 is an ultra-low-power, dual, 8-bit, 22Msps analog-to-digital converter (ADC). The device features two fully differential wideband track-and-hold (T/H) inputs. These inputs have a 440MHz bandwidth and accept fully differential or single-ended signals. The MAX1192 delivers a typical signal-to-noise and distortion (SINAD) of 48.6dB at an input frequency of 5.5MHz and a sampling rate of 22Msps while consuming only 27.3mW. This ADC operates from a 2.7V to 3.6V analog power supply. A separate 1.8V to 3.6V supply powers the digital output driver. In addition to ultra-low operating power, the MAX1192 features three power-down modes to conserve power during idle periods. Excellent dynamic performance, ultra-low power, and small size make the MAX1192 ideal for applications in imaging, instrumentation, and digital communications.An internal 1.024V precision bandgap reference sets the full-scale range of the ADC to ±0.512V. A flexible reference structure allows the MAX1192 to use its internal reference or accept an externally applied reference for applications requiring increased accuracy.The MAX1192 features parallel, multiplexed, CMOS-compatible tri-state outputs. The digital output format is offset binary. A separate digital power input accepts a voltage from 1.8V to 3.6V for flexible interfacing to different logic levels. The MAX1192 is available in a 5mm x 5mm, 28-pin thin QFN package, and is specified for the extended industrial (-40°C to +85°C) temperature range.For higher sampling frequency applications, refer to the MAX1195-MAX1198 dual 8-bit ADCs. See a parametric table of the complete family of pin-compatible, 8-bit high-speed ADCs.ApplicationsBattery-Powered Portable InstrumentsIQ Baseband SamplingLow-Power VideoUltrasound and Medical ImagingWLAN, Mobile DSL, WLL Receiver

The MAX1227/MAX1229/MAX1231 are serial 12-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1231 has 16 input channels, the MAX1229 has 12 input channels, and the MAX1227 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +3V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port.The MAX1231 is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. The MAX1227/MAX1229 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.ApplicationsData Acquisition SystemsData LoggingIndustrial Control SystemsInstrumentationPatient MonitoringSystem Supervision

The MAX1261/MAX1263 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface. They operate with a single +3V analog supply and feature a VLOGIC pin that allows them to interface directly with a +1.8V to +5.5V digital supply.Power consumption is only 5.7mW (VDD = VLOGIC) at the maximum sampling rate of 250ksps. Two software-selectable power-down modes enable the MAX1261/MAX1263 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can cut supply current to under 10µA at reduced sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1261 has eight input channels and the MAX1263 has four input channels (four and two input channels, respectively, when in pseudo-differential mode).Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications or for other circuits with demanding power consumption and space requirements.The MAX1261 is available in a 28-pin QSOP package, while the MAX1263 is available in a 24-pin QSOP. For pin-compatible +5V, 12-bit versions, refer to the MAX1262/MAX1264 data sheet.ApplicationsData Acquisition SystemsData LoggingEnergy ManagementIndustrial Controls SystemsPatient MonitoringTouch Screens