Question

Styles Editing BIU.abe X, XD A aly. A Aa A A A Font Paragraph Styles Consider the following Digital-to-Analog Converter (DAC). (a) Calculate the analog output voltage Vout = -IREX Rp when a binary 1111 is applied. (b) Calculate the resolution of the DAC with a reference voltage of 10 volts and 4 inputs. REF Resolution = 10 V (1 STATE) .-18V 7 1 of 767 words E English (United States) DE- Type here to search

Answer 1

Giver DAC TOV SW1 I Rs. - - RET 20K R. We 25k GOK Ž 100% 12.5* I2sxf * I LA 12.5K 7+18V • Vout -18V call " when the binary input su is applied on the Switches are closed. Vout = -Pex RF → The voltage at Negative terminal of op-amp is "o". I due to virtual short. Out 10 10 0 - 50K 16 + - +- 25k . 12.5k) 1 look ImA + 0.2mA0.4m A +0. Pre = 1.5mA Vout = - IREX Rp = -1.5mAX 20KR. Yout = -30v. turation limit is up to -18v. only. so vout = -18v is up to a But Saturation limit the Subhodaya

Resolution - VREF PT Reference voltage (Veep)2 10v. No. or. inputs (n) = 4. Resolution Resotho - 10 20.667 0.66 229-1