Question

2. (a) An 8-bit A/D converter has an input range of 0 to 15 V and an output in simple binary. Find the output (in decimal) if the input is (a) 6.42 V (b) -6.42 V (c) 12 V (d) OV (b) Convert Hexa decimal Number B602 to a decimal number and Binary. Convert decimal number 227 to binary number.

Answer 1

2(a) Given data 8 bit AD converter 1 -) Input voltage range o to 15V » equation for output voltage of ALD converter Vin Ve N Dole X 2 Vo ve Dolpa Decimal output voltage Vina input analog voltage VLE lower limit of input voltage range Voi Upper limit of input voltage range Na No.of bits. data. =) from given V = OU Vo = 150. N = 8 bit Vino 8 Dolp = Then x 2 No-0 Vin 8 X 2 Dolp 2 VU

(a) 6.42V 6.42 8 X 2 Dolp 15 Dolp 109.56 Dole 110 v isi o to de cimal olp range Here -) N-1 ie O- 255. 2 the decimal value to to round off * We need its nearest. (6) - 6.42 V is o to isu. » Input voltage range in the input voltage is not - 6042 will &o that output range, be 0 a O Dolp

(c) 12v 8 12 X 2 Dole 15 Doip 204.8V .: Done 205V (d) OV 8 Dolp is X 2 15 Dop 2 Ον 2.62 Given Hexa decim al number (36.02) u (BG02) H Pirel lo BX 163 +6816² +0x 16 + 2x 16° 1 (8602) [B -11 11x 16 + 6x16²+ 2x -45056+ 1536 + 2 - 46896

= 46594. :(1602). (46,594) 10 こ (8602). C. ) 2 2 B 6 OOOO 000 10 il ollo (B602) = (1011 0110 0000 0010), 227 to decimal binary & Convert C. ) 1227.10 b 2 227 - 13 2 56 2 28 2 lu @ 2 2 7 2 3 (11100011),

-' (2 23 ) (11боон) 2