Description
The ADC0802, ADC0804LCN 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.
Feature
Supply voltage range from 4.5V to 6.3V
Sampling rate is 9.708KSPS
Compatible with 8080 microprocessor derivatives, no interfacing logic needed
Differential analogue voltage inputs
Logic inputs and outputs meet both MOS and TTL voltage level specifications
Works with 2.5V (LM336) voltage reference
Onchip clock generator
Operating temperature range -40°C to 85°C
No zero adjust required
Easy interface to all microprocessors and operates as a standalone device