This post explains for the semiconductor ADC-0803.
The Part Number is ADC-0803.
The function of this semiconductor is (ADC0802 – ADC0804) 8-Bit/ Microprocessor- Compatible/ A/D Converters.
Manufacturers : Harris
Preview images :
Semiconductor ADC0802, ADC0803 ADC0804 8-Bit, MicroprocessorCompatible, A/D Converters Description The ADC0802 family are CMOS 8-Bit, successive-approximation A/D converters which use a modiﬁed potentiometric ladder and are designed to operate with the 8080A control bus via three-state outputs. These converters appear to the processor as memory locations or I/O ports, and hence no interfacing logic is required. The differential analog voltage input has good commonmode-rejection and permits offsetting the analog zero-inputvoltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution. August 1997 Features • 80C48 and 80C80/85 Bus Compatible – No Interfacing Logic Required • Conversion Time < 100µs • Easy Interface to Most Microprocessors • Will Operate in a “Stand Alone” Mode • Differential Analog Voltage Inputs • Works with Bandgap Voltage References �� [...]