Voltage & Current (Power) Measurement AFE for mV Output Sensor Interface to SAR ADC Reference Design
Description
This reference design is a fixed-gain amplifier stage for measuring low-amplitude voltage and current inputs accurately over a wide dynamic range using SAR ADC for power measurement applications. Low-amplitude AC voltage from voltage dividers: current transformers or split-core current sensors with a 333-mV output can be accurately measured.
Features
- Op amp-based fixed-gain amplifier stage for voltage and current inputs with output compatible to ADS8688 input range of ±2.56 V: ±5.12 V and ±10.24 VConfigurations provided:Voltage input with resistor divider > 1-MΩ impedance (no external PT required)333-mV AC voltage output-type current sensor interfaceCT secondary input with burden resistor: single-ended and differentialOnboard programmable reference provided for single-ended measurement applications.
Applications
- Oscilloscopes & digitizers
- Spectrum analyzer
- Remote power distribution automation
- Grid asset monitoring
- Vector signal transceiver (VST)
- AC analog input module
- Binary input module
- Substation automation
- Wireless communications test
Product Categories
- Amplifiers
| Download the bill of materials for TIDA-00493 | Download |
Test Data
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Download the test file for TIDA-00493| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00493 Gerber | 25 Jun 2015 | ZIP | 704 | |
| TIDA-00493 CAD Files | 25 Jun 2015 | ZIP | 1863 | |
| TIDA-00493 PCB | 25 Jun 2015 | 199 | ||
| TIDA-00493 Assembly Drawing | 25 Jun 2015 | 92 | ||
| TIDA-00493 BOM | 25 Jun 2015 | 230 | ||
| TIDA-00493 Schematic | 25 Jun 2015 | 1273 |