DC661A-B
Analog Devices Inc.The LT3468/LT3468-1/LT3468-2 are highly integrated ICs designed to charge photoflash capacitors in digital and film cameras. A patented control technique* allows for the use of extremely small transformers. Each device contains an on-chip high voltage NPN power switch. Output voltage detection* is completely contained within the device, eliminating the need for any discrete zener diodes or resistors. The output voltage can be adjusted by simply changing the turns ratio of the transformer. The LT3468 has a primary current limit of 1.4A, the LT3468-2 has a 1A limit, and the LT3468-1 has a 0.7A limit. These different current limit levels result in well controlled input currents of 500mA for the LT3468, 375mA for the LT3468-2 and 225mA for the LT3468-1. Aside from the differing current limit, the three devices are otherwise equivalent.The CHARGE pin gives full control of the part to the user. Driving CHARGE low puts the part in shutdown. The DONE pin indicates when the part has completed charging. The LT3468 series of parts are available in tiny low profile (1mm) SOT-23 packages.Applications Digital / Film Camera Flash PDA / Cell Phone Flash Emergency Strobe
LTC4257CS8-1 | Power-Over-Ethernet Interface Controller, Vsig = 48V, VOUT = 3.3V
Analog Devices Inc.DC671A: Demo Board for the LTC4257-1 IEEE 802.3af PD Power over Ethernet Interface Controller with Dual Current Limit.
LTC4011EFE Demo Board | VIN = 4.5V to 25V, NiCd/NiMH 2A Sync Buck Battery Charger
Analog Devices Inc.Demonstration circuit DC674B is a complete Fast Battery Charger capable of charging 3, 4, 6 or 10 series connected NiMH or NiCd cells. Other cell counts can also be charged (up to 16 cells) by installing an appropriate resistor on the board. The power portion of the circuit consists of a 550kHz synchronous step-down constant current source which provides 2A of charge current. Other charge currents can be selected by changing the sense resistor value, and for higher charge current (2 to 4A), the PC board has a dual layout for the top switch to allow a larger FET to be used. A PowerPath™ FET is also included that provides a low voltage drop path between the battery and an external system load when the input power is removed Charge termination includes -ΔV, ΔT/Δt, peak voltage and a safety timer.
LT1942EUF | Quad Converter For TFT Supply and LED Driver, VIN=3V-4.5V, VON=10V/2mA, VOFF=-10V/2mA, AVDD=5V/40mA
Analog Devices Inc.Demonstration Circuit DC688 is a quad output power supply intended for use in small to medium size TFT panels. The circuit features the LT1942 quad output switching regulator and generates an LED driver along with the triple output supply required for the TFT panels. With an input voltage range of 3V to 4.2V, two step-up regulators and one inverting regulator provide AVDD , VON and VOFF bias voltages for the LCD panels. Another high power boost is used to drive 12 LEDs (2 strings of 6 LEDs each). For 3V minimum input voltage, up to 20mA current is available for each LED string. A built-in LED ballast circuit is included to precisely match the LED currents in the two strings.
DC692A
Analog Devices Inc.The LTC3426 step-up switching regulator generates an output voltage of up to 5.5V from an input voltage as low as 1.6V. Ideal for applications where space is limited, it switches at 1.2MHz, allowing the use of tiny, low cost and low profile external components. Its internal 2A, 100m? NMOS switch provides high efficiency even at heavy load, while the constant frequency, current mode architecture results in low, predictable output noise that is easy to filter.Anti-ringing circuitry reduces EMI concerns by damping the inductor while in discontinuous mode, and internal soft-start eases inrush current worries. Internal frequency compensation is designed to accommodate ceramic output capacitors, further reducing noise. The device features very low shutdown current of 0.5?A.The LTC3426 is available in the 6-lead SOT-23 package.Protected by U.S. Patents, including 6498466, 6611131Applications White LED Driver Supply Local 3.3V or 5V Supply Battery Back-Up
DC703A
Analog Devices Inc.The LTC3459 is a low current, high efficiency synchronous boost converter intended for low power, size constrained portable applications. The LTC3459 can be powered from a single lithium ion battery, a 2- to 3-cell stack of Alkaline or Nickel batteries, or any low impedance voltage source between 1.5V and 5.5V. The output is programmable via an external divider between 2.5V and 10V. Although the part is primarily intended for boost applications, VOUT will maintain regulation below VIN (at reduced efficiency).The LTC3459 offers Burst Mode operation with a fixed peak current, providing high conversion efficiency over a wide range of load currents. During start-up, inductor current is controlled preventing the inrush surge current found in many boost converters. In shutdown the output is disconnected from the input and quiescent current is reduced to
LT6553CGN | Triple High Speed Video Amplifier, V+ = 3.3V to 5V, V- = -3.3V to -5V
Analog Devices Inc.DC714A: Demo Board for the LT6553 650MHz Gain of 2 Triple Video Amplifier.
LTC3723EGN-1 Isolated Demo Board | Sync Push-Pull Controller with Synchronous Rectification, 42V ≤ VIN ≤ 56V, 12VOUT @ 20A
Analog Devices Inc.Demonstration circuit 719 is an Isolated Full-Bridge Converter with Synchronous Rectification featuring the LTC3723-1, LTC3901, LTC4440, and LT1431. It operates at 300kHz and produces a regulated 12V, 20A output in a quarter-brick footprint from a typical telecom input voltage range of 42 to 56V. Synchronous rectification helps to attain efficiency approaching 96%. Isolation voltage is 1500VDC.
LT3800EFE Demo Board | VIN = 20V to 55V, VOUT = 12V @ 6.25A
Analog Devices Inc.Demonstration Circuit 720 is a 200kHz high voltage, synchronous current-mode DC/DC step-down converter featuring the LT3800. The board operates from a Vin range of 20V to 55V and outputs 12V @ 6.25A (75W).
LT3724EFE | High Voltage Step-Down Controller, 30V to 60VIN, 24VOUT @ 3A
Analog Devices Inc.DC736A: Demo Board for the LT3724 High Voltage, Current Mode Switching Regulator Controller.
LTC2922IF | Tracker/Sequencer Demo Board, VCC = 5V
Analog Devices Inc.DC740A-A: Demo Board for the LTC2922 Power Supply Tracker with Input Monitors.
LTC2449UHF Demo Board | 24-Bit High-Speed 8/16-Channel Delta Sigma ADC (Requires DC2026)
Analog Devices Inc.Demonstration circuit 742B features the LTC2449, an 8-/16-channel, high speed, 24-bit ΔΣ ADC with ten selectable speed/resolution modes from 6.9Hz/200nVRMS to 3.5kHz/25μVRMS (4kHz with external oscillator). Key DC specifications include 5ppm INL, 5μV offset, 10ppm fullscale error and 20nV/°C offset drift. In the 6.9Hz/200nVRMS mode, input normal mode rejection of 50Hz and 60Hz noise is better than 87dB. The accuracy (offset, full-scale, linearity, drift) and power dissipation are independent of the speed selected. The LTC2449 performs auto-zeroing of the ADC by reversing the inputs through the multiplexer output/ADC input connections. This allows an external dual buffer amplifier to isolate the signal inputs from the sampling current of the ADC.
LTC2232IUK | High Speed ADC, VDD = +3.3V, 105Msps, 10-Bit 1MHz < AIN < 100MHz (Requires DC718)
Analog Devices Inc.DC751A-C: Demo Board for the LTC2232 10-Bit, 105Msps ADCs.
DC752A-B
Analog Devices Inc.The LTC2704-16/LTC2704-14/LTC2704-12 are serial input, 12-, 14- or 16-bit, voltage output SoftSpan? DACs that operate from 3V to 5V logic and ?5V to ?15V analog supplies. SoftSpan offers six output spans?two unipolar and four bipolar?fully programmable through the 3-wire SPI serial interface. INL is accurate to 1LSB (2LSB for the LTC2704-16). DNL is accurate to 1LSB for all versions. Readback commands allow verification of any on-chip register in just one 24- or 32- bit instruction cycle. All other commands produce a ?rolling readback? response from the LTC2704, dramatically reducing the needed number of instruction cycles. A Sleep command allows any combination of DACs to be powered down. There is also a reset flag and an offset adjustment pin for each channel.Applications Process Control and Industrial Automation Direct Digital Waveform Generation Software Controlled Gain Adjustment Automated Test Equipment
LTC4068EDD-4.2 | 800mA Stand Alone Li-Ion Charger, VIN = 4.5V to 6.3V, VOUT = 800mA Charge, 40mA Termination
Analog Devices Inc.DC766A: Demo Board for the LTC4068-4.2 Standalone Linear Li-Ion Battery Charger with Programmable Termination.
DC768A
Analog Devices Inc.The LTC3415 is a high efficiency, monolithic synchronous buck regulator using a phase lockable constant frequency, current mode architecture. PolyPhase? operation allows multiple LTC3415s to run out of phase while using minimal input and output capacitance. The operating supply range is from 5.5V down to 2.5V, making it suitable for single Lithium-Ion battery as well as point of load power supply applications. Burst Mode operation provides high efficiency at low load currents. 100% duty cycle provides low dropout operation that extends operating time in battery-operated systems.The operating frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors. For switching-noise sensitive applications, it can be externally synchronized from 0.75MHz to 2.25MHz. The PHMODE pin allows user control of the phase of the outgoing clock signal. The current sense comparator is factory trimmed for accurate output current sharing. Burst Mode operation is inhibited during synchronization or when the MODE pin is pulled low to reduce noise and RF interference.Applications Point of Load Power Supply Portable Instruments Distributed Power Systems Battery-Powered Equipment
DC773A
Analog Devices Inc.The LTC3441 is a high efficiency, fixed frequency, buck-boost DC/DC converter that operates efficiently from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for single lithium ion or multicell applications where the output voltage is within the battery voltage range.The device includes two 0.10? N-channel MOSFET switches and two 0.11? P-channel switches. External Schottky diodes are optional, and can be used for a moderate efficiency improvement. The operating frequency is internally set to 1MHz and can be synchronized up to 1.7MHz. Quiescent current is only 25?A in Burst Mode operation, maximizing battery life in portable applications. Burst Mode operation is user controlled and can be enabled by driving the MODE/SYNC pin high. If the MODE/SYNC pin is driven low or with a clock, then fixed frequency switching is enabled.Other features include a 1?A shutdown, soft-start control, thermal shutdown and current limit. The LTC3441 is available in a thermally enhanced 12-lead (4mm ? 3mm) DFN package.Applications Handheld Computers Handheld Instruments MP3 Players Digital Cameras
LTC2249IUH | High Speed ADC, VDD = +3.0V, 80Msps, 14-Bit 1MHz < AIN < 70MHz, Requires DC718
Analog Devices Inc.DC782A-A: Demo Board for the LTC2249 14-Bit, 80Msps Low Power 3V ADC.
LTC2245IUH | High Speed ADC, VDD = +3.0V, 10Msps, 14-Bit 1MHz < AIN < 70MHz, Requires DC718
Analog Devices Inc.DC782A-E: Demo Board for the LTC2245 14-Bit, 10Msps Low Power 3V ADC.
DC782A-H
Analog Devices Inc.The LTC2228/LTC2227/LTC2226 are 12-bit 65Msps/40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2228/LTC2227/LTC2226 are perfect for demanding imaging and communications applications with AC performance that includes 71dB SNR and 80dB SFDR for signals at the Nyquist frequency.DC specs include ?0.3LSB INL (typ), ?0.15LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 0.25LSBRMS.A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6Vlogic.A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.Applications Wireless and Wired Broadband Communication Imaging Systems Ultrasound Spectral Analysis Portable Instrumentation
