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E B3E037 Pages:3

18. (i) With neat functional diagram explain the working of monostable multivibrator using
10555 timer. (7)
(11) Design a monostable multivibrator using IC 555 timer for a pulse period of | ms. (3)

19. (1) Drawthe circuit diagram and frequency response of a first order low pass butterworth

filter using OP-AMP and explain its working and. (6)
(ii) Design a first order butterworth LPF using OP-AMP for a cut off frequency of 2kHz
with a pass band gain of 2. (4)
20. (i)Explain the working principle of a R-2R ladder type DAC. (6)
(ii)A 4-bit R-2R ladder type DAC having R= 10 kQ and ‏حورلا‎ 10 V. Find its resolution
and output voltage for an input 1101. (4)
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