Texas Instruments AMC131M03

Description

The AMC131M03 is a precision, three-channel, data and power-isolated, simultaneous-sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). The AMC131M03 offers wide dynamic range, low power, and energy-measurement-specific features designed for energy metering and power metrology applications. The ADC inputs can be directly interfaced to a resistor-divider network or a shunt current sensor because of the device high input impedance.

Features

• Three isolated, simultaneous-sampling ΔΣ ADCswith differential or single-ended inputs
• Single-supply operation (3.3 V or 5 V) with integrated DC/DC converter
• Low EMI: Meets CISPR-11 and CISPR-25 standards
• Programmable data rate: Up to 64 kSPS
• Programmable gain: Up to 128
• Low-drift internal voltage reference
• Internal temperature sensor
• 4-wire SPI interface with cyclic redundancy check (CRC)
• Safety-related certifications:
• 7070-VPEAK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17): 2021-10
• 5000-VRMS isolation for 1 minute per UL1577
• Package: 20-pin, wide-body SOIC
• Operating temperature range: –40°C to +125°C

Typical applications

• Electricity meters: Commercial and residential, Circuit breakers, EV charging stations
• Battery management systems

More information

• Datasheet
• IC product information