Analog Devices Inc. AD7192 24-Bit Sigma-Delta ADCs with PGA
Analog Devices AD7192 24-Bit Sigma-Delta ADCs with PGA provide a low-noise, complete analog front end for high-precision measurement applications. The AD7192 includes a low-noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The on-chip low-noise gain stage enables small amplitude signals of small to interface directly to the ADC. Analog Devices AD7192 Sigma-Delta ADCs operate from a 3V to 5.25V power supply and consume 4.35mA of current.
Features
- 11nV @ 4.7Hz (gain = 128) RMS noise
- 15.5 noise-free bits @ 2.4kHz (gain = 128)
- Up to 22 noise-free bits (gain = 1)
- 5nV/°C offset drift
- 1ppm/°C gain drift
- Specified drift over time
- Two differential/four pseudo differential input channels
- Automatic channel sequencer
- Programmable gain (1 to 128)
- 4.7Hz to 4.8kHz output data rate
- Internal or external clock
- Simultaneous 50Hz/60Hz rejection
- Four general-purpose digital outputs
- Power supply
- 3V to 5.25V AVDD
- 2.7V to 5.25V DVDD
- 4.35mA current
- –40°C to +105°C temperature range
Applications
- Weigh scales
- Strain gage transducers
- Pressure measurement
Block Diagram
Associated Products
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Published: 2018-03-29
| Updated: 2023-01-30