11A sample-and-hold circuit is used before an ADC to:ACount pulsesBAmplify noiseCKeep the input voltage constant during conversionDConvert digital to analogView AnswerDiscussWorkspaceReportSaveEasy
12A flash ADC with n bits needs how many comparators?A2nBnC2ⁿ − 1Dn²View AnswerDiscussWorkspaceReportSaveEasy
13Resolution of an n-bit converter is:A2nBAlways 1 VCFull-scale range ÷ 2ⁿ (approximately)Dn voltsView AnswerDiscussWorkspaceReportSaveEasy
14Quantisation error in an ADC is:AA power failureBClock jitter onlyCThe difference between the actual analog value and its digital representationDA wiring faultView AnswerDiscussWorkspaceReportSaveEasy
15A dual-slope ADC is known for:AVery high speedBHigh accuracy and noise rejection but slow speedCBeing a DACDUsing no capacitorView AnswerDiscussWorkspaceReportSaveEasy