Analog Devices Inc. AD7783BRU-REEL7

Description
The AD7783 is a 24-bit sigma-delta analog-to-digital converter (ADC) with integrated current sources. It features a single fully differential input channel with configurable gain (1 or 16) and input ranges (±2.56 V or ±160 mV). The device operates from a 32.768 kHz crystal and has a fixed update rate of 19.79 Hz, providing simultaneous 50 Hz and 60 Hz rejection. The AD7783 has a simple, read-only digital interface that can operate in master or slave mode.

Features
Single-channel, 24-bit sigma-delta ADC
Pin configurable (no programmable registers)
ISOURCE Select™ pin programmable input ranges (±2.56 V or ±160 mV)
Fixed 19.79 Hz update rate
24-bit no missing codes
18.5-bit p-p resolution ( 2.56 V range)
16.5-bit p-p resolution (±160 mV range)
Master or slave mode of operation
Slave mode 3-wire serial
SPI, QSPI, MICROWIRE™, and DSP-compatible
Schmitt trigger on SCLK
Specified for single 3 V and 5 V operation
Normal: 1.3 mA @ 3 V
Power-down: 9 μA

Applications
Sensor measurement
Industrial process control
Temperature measurement
Pressure measurement
Weigh scales
Portable instrumentation