24-Bit, 62.5kSPS, Multichannel, Low-Noise Precision Sigma-Delta ADC

The AD4195-4 is a low noise, completely integrated analog front end for high precision measurement applications. The device contains a low noise, 24-bit Σ-Δ analog-to-digital converter (ADC) and can be configured to have four differential or eight single-ended or pseudodifferential inputs. The on-chip low-noise gain stage ensures that signals of small amplitude can be interfaced directly to the ADC.

Please see the data sheet for the full description.

APPLICATIONS

* Industrial process control: PLC/DCS modules

* Temperature measurement

* Pressure measurement

* Medical and scientific instrumentation

* Chromatography

* Environmental monitoring

* Electrical test and measurement

* Instrumentation

* Weigh scale

* Input referred noise: 10nV at 3.8SPS, Gain = 128

* Crosspoint multiplexed analog inputs

* 4 Differential/8 Pseudodifferential inputs

* Ultra-low noise integrated PGA, gains of 0.5 to 128

* Output data rate: 3.8SPS to 62.5kSPS

* Flexible digital filters

* Low latency sinc filters

* Simultaneous 50Hz/60Hz rejection

* Band-gap reference with 5ppm/°C drift typical

* Internal oscillator

* Analog power supply: 4.75V to 5.25V or ±2.5V

* Digital power supply: 1.7V to 5.25V

* Matched programmable excitation current sources

* Low-side power switches

* On-chip bias voltage generator