a 12-bit converter has an input range of /- 10 v and is connected to amplifier with following gains: 1, 10, 100 and 500. the connected sensor has maximum output of 7.5 mv. select appropriate gain to minimize the quantization error. calculate percentage quantization error for the maximum input.

Respuesta :

Maximum quantization error is calculated using the formula Maximum quantization error = (VH - VL)/2(2n), where n is the ADC's resolution in bits.

The largest inaccuracy that can occur corresponds to a voltage that is (1/2) of an LSB. This quantization would be the sole cause of error in the recorded samples for a perfect digital recorder. This mistake establishes the absolute upper bound on the readings' accuracy for a real digital recorder. The difference between the analog signal and the nearest available digital value at each sampling instant from the A/D converter is known as the quantization error. Quantization error also introduces noise to the sample signal known as quantization noise.

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