Counter Type Adc Diagram. It is mostly used in multimeters for example where accuracy is more important than speed. Analog to digital converter.
This type of adc is accurate but very slow. Then a converted signal appears on the start lie the input gate is enabled and the clock pulses are allowed to the counter s clock input. The output voltage of a dac is vd which is equivalent to corresponding digital input to dac.
2 the counter type adc is reset to zero count by reset pulse applied to clear terminal.
The circuit diagram of counter type adc can be built with n bit counter digital to analog converter and op amp comparator. A counter type adc produces a digital output which is approximately equal to the analog input by using counter operation internally. As shown it comprises on input voltage comparator a clock generator a gate and n bit counter. Figure 1 shows the circuit diagram of counter type adc it consists of dac comparator binary counter and and gate.
