深圳市中立信电子科技有限公司

AD7794CRUZ

模数转换器 - ADC 6Ch Lo Noise Lo Pwr 24B w/ On-Chip Ref

6-Channel, Low Noise, Low Power, 24-/16-Bit  ∑-Δ ADC with On-Chip In-Amp and Reference

GENERAL DESCRIPTION AD7794CRUZ

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 ∑-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.

APPLICATIONS AD7794CRUZ

Temperature measurement

Pressure measurement

Weigh scales

Strain gage transducers

Gas analysis

Industrial process control

Instrumentation

Blood analysis

Smart transmitters

Liquid/gas chromatography

6-digit DVM

FEATURES AD7794CRUZ

Up to 23 effective bits

RMS noise: 40 nV @ 4.17 Hz, 85 nV @ 16.7 Hz

Current: 400 μA typical

Power-down: 1 μA maximum

Low noise, programmable gain, instrumentation amp

Band gap reference with 4 ppm/°C drift typical

Update rate: 4.17 Hz to 470 Hz

Six differential analog inputs

Internal clock oscillator

Simultaneous 50 Hz/60 Hz rejection

Reference detect

Programmable current sources

On-chip bias voltage generator

Burnout currents

Low-side power switch

Power supply: 2.7 V to 5.25 V