GATE Digital Electronics: ADC and DAC – Previous Year Questions
9 GATE previous year questions on ADC and DAC (Digital Electronics, Instrumentation Engineering) with answers and explanations, from every paper.
- GATE 2021 IN Q20 – For a 4-bit flash ADC with full-scale input range V, which statements are true?
- GATE 2021 IN Q27 – A 10-bit ADC has full scale 10.230 V at output (11\,1111\,1111) 2. Its quantization error is mV.
- GATE 2022 IN Q25 – An analog-to-digital converter with resolution 0.01 V converts analog signals between 0 V to +10 V to an unsigned binary output. The minimum number of…
- GATE 2022 IN Q42 – The resistor-ladder DAC has the switch state shown for its digital input. Its output-node Thevenin voltage V th and resistance R th are .
- GATE 2024 IN Q58 – An ADC has full-scale voltage 1.4 V, resolution 200 mV, and binary output. It samples a 500 MHz bandwidth signal at the Nyquist rate. A…
- GATE 2025 IN Q34 – A dual-slope ADC has fixed integration time 100 ms and reference voltage −5 V. Its total time to measure an input of 1.25 V is ms (rounded to the…
- GATE 2025 IN Q43 – A 3-bit DAC uses an ideal opamp and switches, each closed when its corresponding digital input is 1, as shown. For input 110, the resistance R in seen…
- GATE 2026 IN Q23 – The maximum signal to quantization noise ratio (SQNR) for a 16-bit analog-to- digital converter is approximately dB.
- GATE 2026 IN Q35 – The minimum number of comparators required in a 6-bit flash analog-to-digital converter is . (Answer in integer.)