a) State TWO differences between weighted resistor and R-2R ladder. (2 Marks) b) With the aid of diagram, sketch the weighted resistor DAC circuit have 5 bits (10110). The value given for R = 10k2, R= = 5k52, VREF = 10V. i. Calculate the output of voltage, Vo. ii. Calculate the current 13 (5 marks) (2 marks) c) Design the flash circuit ADC with 3 output bits with voltage input given is 6.5V and voltage referance is 12V. Show the value of output bits. Assume voltage drop 1.5V. i. ii. iii. iv. Calculate the resolution Find the Quantization noise Determine the signal to noise Find the output code (11 marks)