AD7172-2BRUZ-RL7

The AD7172-2BRUZ-RL7 is an intelligent, low-power, multiplexed Sigma-Delta Analog-to-Digital Converter (ADC) from Analog Devices Inc. It is designed for low bandwidth signals and supports 2 or 4 channels, configurable as fully differential or single-ended inputs.

Key electrical specifications include a fast and flexible output data rate ranging from 1.25 SPS to 31.25 kSPS, with a channel scan rate of 6.21 kSPS/channel. It achieves 17.2 noise-free bits at 31.25 kSPS and 24 noise-free bits at 5 SPS. The ADC boasts high precision with an Integral Non-Linearity (INL) of ±2 ppm of FSR and 85 dB rejection of 50 Hz and 60 Hz interference with 50 ms settling.

Integrated features include true rail-to-rail analog and reference input buffers, simplifying driving high impedance inputs. It also incorporates an on-chip 2.5 V reference with a low drift of ±2 ppm/°C, reducing external component count. The device supports internal or external clock sources and operates on a wide power supply range.

Designed for applications in process control, temperature and pressure measurement, and medical and scientific instrumentation, the AD7172-2BRUZ-RL7 utilizes a 3- or 4-wire serial digital interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols. It operates within a temperature range of -40°C to +105°C.