ADI AD7794BRU

244706差分2.7V ~ 5.25V2.7V ~ 5.25V-40°C ~ 105°C

Overview

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.

Both parts operate with a power supply from 2.7 V to 5.25 V. The B-grade parts (AD7794BRU 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.

Features

Up to 23 effective bits

Six differential analog inputs

Power supply: 2.7 V to 5.25 V

Independent interface power supply

Power-down: 1 μA maximum

Applications

Temperature measurement

Pressure measurement

Weigh scales

Strain gage transducers

Gas analysis