Description
Superior Analog Performance with Ultra-low Noise Level & High SNR Energy Measurement Accuracy of 0.1% over a 4000:1 Dynamic Range Two Independent 24-bit, 4th-order, Delta-Sigma Modulators for Voltage and Current Measurements Configurable Digital Output for Energy Pulses, Interrupt, zero-crossing, and Energy Direction Supports Shunt Resistor, CT, and Rogowski Coil Current Sensors On-chip Measurements/Calculations: - Active, Reactive, and Apparent Power - RMS Voltage and Current - Power Factor and Line Frequency - Instantaneous Voltage, Current, and Power Overcurrent, Voltage Sag, and Voltage Swell Detection Ultra-fast On-chip Digital Calibration Configurable No-load Threshold for Anti-creep Internal Register Protection via Checksum and Write Protection UART Serial Interface On-chip Temperature Sensor On-chip Voltage Reference (25ppm/°C Typ.) Single 3.3 V Power Supply Ultra-fine Phase Compensation Low Power Consumption: <13 mW Power Supply Configurations: - GNDA = 0 V, VDDA: +3.3 V Low-cost 16-pin SOIC Package The CS5490 is a high-accuracy, two-channel, energy measurement analog front end. The CS5490 incorporates independent 4th order Delta-Sigma analog-to-digital converters for both channels, reference circuitry, and the proven EXL signal processing core to provide active, reactive, and apparent energy measurement.
