Distributor | SKU | Stock | Cost | |
---|---|---|---|---|
DigiKey | AD7794BRUZ-ND | 4095 | $13.00 | Buy |
Mouser Electronics | 584-AD7794BRUZ | 2886 | $18.58 | Buy |
element14 APAC | AD7794BRUZ | 698 | * $19.84 | Buy |
Win Source | AD7794BRUZ | 40000 | $11.95 | Buy |
Farnell | AD7794BRUZ | 703 | * $10.65 | Buy |
Newark | AD7794BRUZ | 712 | $19.42 | Buy |
Analog Devices Inc | AD7794BRUZ | $17.83 | Buy |
The AD7794/AD7795 are low power, low noise, complete analog front ends for high precision measurement applications. They contain a low noise, 24-/16-bit Σ-Δ ADC with six differential inputs. The on-chip low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC.Each device contains a precision, low noise, low drift internal band gap reference, and can also accept up to two external differential references. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator that is used to set the common-mode voltage of a channel to AVDD/2. The low-side power switch can be used to power down bridge sensors between conversions, minimizing the system’s power consumption. The AD7794/AD7795 can operate with either an internal clock or an external clock. The output data rate from each part can vary from 4.17 Hz to 470 Hz.Both parts operate with a power supply from 2.7 V to 5.25 V. The B-grade parts (AD7794 and AD7795) are specified for a temperature range of −40°C to +105°C while the C-grade part (AD7794) is specified for a temperature range of −40°C to +125°C. They consume a current of 400 μA typical and are housed in a 24-lead TSSOP.Applications Temperature measurement Pressure measurement Weigh scales Strain gage transducers Gas analysis