TIDUAH1A
August 2015 – April 2018
Revision History
Features
MSP430F67791A System-on-Chip (SOC) With Six Simultaneous Delta-Sigma ADCs for Measurement of Three-Phase Voltages and Currents
Isolated, Selectable Bidirectional DC Analog Voltage or Current Outputs ±10-V DC or ±24 mA Based on Dual Output, 16-Bit DAC8563, XTR300, and ISO7341FC
Six Open Collector Outputs to Drive Relays for Alarms or Optocouplers for Pulse Output
AC Input Voltage Measurement Range: 10% to 120% of Rated Voltage (230 V)
AC Input Current Measurement Range: 5% to 200% of Rated Current (5 A)
AC Input Measurement Accuracy < ±0.5% and DC Output Accuracy < ±0.2% of Full Scale
DC Analog Output Response Time ≈ 1000 ms
Provides Expansion Options for Segment LCD Interface, UART Interface, and BCD Switch Interface
Onboard Current Transformers and Potential Dividers Provided for Direct Measurement of Voltages and Currents