AD7794BRUZ

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.
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 commonmode 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.