I need help with this question Q.5-A). AsSume that the output of the DA in Fgure

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I need help with this question

Q.5-A). AsSume that the output of the DA in Fgure (o) is connected to the op amp o Figure (b). (a) with Ih" 5 V, R 20 kQ, R, 10 k? and determine the step size and the full scale voltage at lim T. (b) Change the valuc of Rr so that the full-scalc voltage at VouT is - 2V is new value of Rr, and determine the proportionality factor, K, in the relationship TOUT = K('?EFX B). swich close when rat bt-1 oar ????58 , lour L A certain memory has a capacity of 16k X 32. How many words does it store? What is the number of bits per word? How many memory cells does it contain? ?4 How many different addresses are required by the memory of Problem ii What is the capacity of a memory that has 16 address inputs, four data inputs, and four data outputs? is A certain memory stores 8K 16-bit words. How many data input and data output lines does it have? How many address lines does it have? What is its capacity in bytes?

Explanation / Answer

part (1)

(a)Vout, full scale = (-Vref/R )[1+1/2+1/4+1/6]RF = -(5/20kohm)*(10kohm)*(23/12) = -4.792V

    step size = (-4.792)/(24-1) = -0.3194V

(b)with Vout = -2V, new RF is given as = (2*20K)/(5*(23/12)) = 4.173kohm

Part (2)

memory capacity of 16K*32 may be written as 217*32   where 17 address lines exist at input and 32 bits per word.

With 17 address lines we will have 217 words and 32 bits per word

Total memory cells = 217*32

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