ADC0804 Single Channel 8-bit Analog to Digital Converter

The ADC080X family is 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 common- mode-rejection and permits offsetting the analog zero-input voltage 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.

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 Band gap Voltage References

• TTL Compatible Inputs and Outputs

• On-Chip Clock Generator

• Analog Voltage Input Range