ADS1283
Features
- 1 High Resolution:
- SNR: 130 d B (250 SPS, PGA = 1)
- High Accuracy:
- THD:
- 122 d B
- Low Power Consumption:
- 18 m W (PGA = 1, 2, 4, or 8)
- Shutdown Mode: 10 μW
- Low-Noise PGA: 5 n V/√Hz
- Two-Channel Input Multiplexer
- Inherently-Stable Modulator With Fast Responding
Overrange Detector
- Flexible Digital Filter:
- Sinc + FIR + IIR (Selectable)
- Linear or Minimum Phase Response
- Programmable High-Pass Filter
- Selectable FIR Data Rates:
250 SPS to 4 k SPS
- Offset and Gain Calibration Engine
- SYNC Input
- Analog Supply: 5 V or ±2.5 V
- Digital Supply: 1.8 V to 3.3 V
2 Applications
- Energy Exploration
- Seismic Monitoring
- High-Accuracy Instrumentation
Simplified Schematic
AVDD
VREFN VREFP
DVDD
Input 1
Input 2
Mux
Overrange ADS1283 AVSS
4th-Order û
Modulator
Programmable Digital...
