Download Digital Electronics 13.4b

Digital Electronics
13.4b
Chapter 13
33, 34, 35
Also
1. Design the details of a 4-bit Successive Approximation Converter according to the
block diagram given in class (i.e. design the DAC, SAR, control logic, and latch).
2. A dual slope ADC uses a 16-bit counter and a 4MHz clock rate. The maximum input
voltage is +10V. The maximum integrator output voltage should be -8V when the
counter has cycled through 2n counts. The same counter is used for the charging and
discharging of the capacitor. The capacitor used in the integrator is 0.1F.
a) Find the value of the resistor of the integrator.
b) If the analog input signal is 4.129V, find the equivalent digital output.
c) What should Vref be set to?