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Appendix C
SLAU587 – August 2014
EVM Specification and Performance
C.1
EVM Specifiction
•
Voltage operating range (with supplied power supply) : 85 to 265 VAC, 120 to 380 VDC
•
Sample rate : 8000 Hz
•
Sampling bit depth : 24 bits
•
Polling report supported
•
Update rate : four ac cycles (ac mode), 80 ms (dc mode)
•
UART communication data rate : 9600 bps
•
AC/DC measuring mode switching : four ac cycles (ac to dc), 80 ms (dc to ac)
•
Measurements : RMS voltage, RMS current, active power, reactive power, apparent power, power
factor, line frequency, temperature
•
Measurement voltage range : 0 – 265 Vrms AC, 0 to ±380 VDC (using reference design circuit and
component values)
•
Measurement current range : 0 to 15 Arms AC, 0 to ±22.5 ADC (using reference design circuit and 0.5-
m
Ω
shunt values)
•
Voltage resolution : 1 mV
•
Current resolution : 1 µA
•
Active Power resolution : 1 mW
•
Reactive and apparent power resolution : 1 mW
•
Power factor resolution : 0.001
•
Frequency resolution : 0.01 Hz
60
EVM Specification and Performance
SLAU587 – August 2014
Copyright © 2014, Texas Instruments Incorporated