Question

c) Quantize an analogue to digital convertor with dynamic range of 1V in 4 bits. 5 marks d) Dead zone and resolution are two important characterisation values for most sensing devices Describe the differences between these two values 2 marks e) Draw the circuit and calculate the cut off frequency for a low pass filter with R- 10000 and C 1mF 4 marks

Answer 1

c Rowge analoyue ignal 1 v No. 0f bits 4 To tal of he digital lavels mo. LS.B 1 v 6 2.5mV the quantized lvels will be 0,62.5d t125, 187. 5 m, 250m, 37.5V 312.5mV, 375mV, 500 m, 562.5,625mv, 687.5m, 750m 812.5m &75 m 9 37.5m Dead Zone difined Lavgest change the put such that thhere in change out put the olevice is the Resolution Amd a incrtase cleuease in timput To give the a autput. Change in Comput Cufput change change Iageat change change which dead zone hus as oloesut ea a Cause minimum is the hesolutiom iunput that Causes to Resolulion Deadzone Also

el Signal Gulput Cast off auf fuqunay f Xe R wec we RC 27RC fe 27x 10UD x 103 O.159 Hz 159 mtlz.