The input-voltage range for a typical voltmeter IC is usually ±200mV, with precision of 3½ or 4½ digits. A sigma-delta panel-meter IC from Maxim (MAX1499) is no exception, but you can easily double ...
The CA3189 IC integrates a symmetrical limiter, a phase demodulator, an audio amplifier, and a logarithmic detector-amplifier. The logarithmic detector-amplifier is the most interesting part of the IC ...
Measuring extremely high dc voltages of 10 kV or more usually requires a suitably equipped high-voltage ohmmeter or a digital multimeter and high-voltage divider, along with the proper safety ...
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