60Vdc current-voltage-power monitor IC has ±3µV offset


ST TSC1641 volt current watt monitor loRes

Called TSC1641, it has two 16bit ΣΔ converters at its inputs, allowing simultaneous measurement of current (LSB=2.5µV) and voltage (LSB=2mV).

The measured voltage can be anywhere from 0 to 60V (65V abs max), and the two current terminals sense with either polarity across a sense resistor anywhere in that voltage range – so high-side or low-side current sensing is possible, bidirectional in both cases.

Shunt sensing amplitude is between -81.9175 and +81.92mV, with a typical offset voltage of ±3µV. Both voltage and current measurements have a maximum gain error of 0.5%.

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