AD7175-2 Sigma-Delta Rail-to-Rail ADC available at Mouser

The Analog Devices AD7175-2 24-Bit, 250kSPS Sigma Delta (ADC) is a high-resolution 24-bit -" ADC for chemical analysis and environmental monitoring applications. A wide dynamic range enables smaller signal deviations to be measured as required within analytical laboratory instrumentation systems. The AD7175-2 has four independent channels and four independent setups. The developer can select any of the analogue input pairs on any channel, as well as any of the four setups for any channel, providing full flexibility in the channel configuration. This also allows per channel configuration when using differential inputs, as well as single-ended inputs, because each channel can have its own dedicated setup. A precision 2.5V low drift (2ppm/degC) band gap internal reference with output reference buffer adds additional functionality which reduces external component count.

Integrated true rail-to-rail buffers on the analogue inputs and external reference inputs, allowing the ADC to easily drive high-impedance inputs. An SPI interface allows configuration of many of the ADC options including power-down modes, selecting the internal or external voltage references, gain, offset calibration values, and enabling the internal temperature sensor. This ADI device is specified over the extended industrial temperature range of -40degC to +105degC.

The AD7175-2SDZ evaluation board, also available from Mouser Electronics, allows full access to all AD7175-2 features for test and evaluation. The board can operate as a stand-alone test and measurement board or can operate with an ADI system development platform.

To learn more about the AD7175-2 Sigma-Delta Rail-to-Rail ADC, visit www.mouser.com/new/Analog-Devices/adi-ad7175-2-adc.