AD7193BRUZ 24 Bit Analog to Digital Converter 4, 8 Input 1
Sigma-Delta 28-TSSOP
GENERAL DESCRIPTION The AD7193 is a low noise, complete analog
front end for high precision measurement applications. It contains
a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter
(ADC). The on-chip low noise gain stage means that signals of small
amplitude can interface directly to the ADC. The device can be
configured to have four differential inputs or eight pseudo
differential inputs. The on-chip channel sequencer allows several
channels to be enabled simultaneously, and the AD7193 sequentially
converts on each enabled channel, simplifying communication with
the part. The on-chip 4.92 MHz clock can be used as the clock
source to the ADC or, alternatively, an external clock or crystal
can be used. The output data rate from the part can be varied from
4.7 Hz to 4.8 kHz. The device has a very flexible digital filter,
including a fast settling option. Variables such as output data
rate and settling time are dependent on the option selected. The
AD7193 also includes a zero latency option. The part operates with
a power supply from 3 V to 5.25 V. It consumes a current of 4.65
mA, and it is available in a 28-lead TSSOP package and a 32-lead
LFCSP package
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