A single-ended DC voltmeter features a sample-and-difference front-end circuit. We wish to use this meter to measure the differential offset voltage of a DUT's output buffer. Each of the two outputs is specified to be within a range of 3.5 V ± 25 mV, and the differential offset is specified in the device data sheet to be ± 15 m V. The meter input can be set to any of the following ranges ±10 V,± 5 V,±.2 V, and ± 1 V. The meter has a maximum error of 0.1% of its programmed range. The error includes all sources of inaccuracy (quantization error, linearity error, gain error, etc.). Compare the accuracy achieved using two simple DC measurements with the accuracy achieved using the sample-and-difference circuit. Assume no errors due to non-repeatability
Â
Already registered? Login
Not Account? Sign up
Enter your email address to reset your password
Back to Login? Click here