ADS131M04
Overview
The ADS131M04 is a four-channel, simultaneouslysampling, 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC) that offers wide dynamic range, low power, and energy-measurement-specific features, making the device excellent for energy metering, power metrology, and circuit breaker applications. The ADC inputs can be directly interfaced to a resistor-divider network or a power transformer to measure voltage or to a current transformer or a Rogowski coil to measure current.
- 1 4 simultaneously sampling differential inputs
- Programmable data rate up to 32 kSPS
- Programmable gain up to 128
- Noise performance: - 102-dB dynamic range at gain = 1, 4 kSPS - 80-dB dynamic range at gain = 64, 4 kSPS
- Total harmonic distortion: -100 dB
- High-impedance inputs for direct sensor connection: - 300-kΩ input impedance for gains of 1, 2, and 4 - 1-MΩ input impedance for gains of
