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 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.
This document is a technical datasheet for the Intersil ADC0802, ADC0803, and ADC0804 family of CMOS 8-bit A/D converters. These devices are designed to operate with the 8086/80C80/85 bus via three-state outputs, requiring no interfacing logic. They feature differential analog voltage inputs, an on-chip clock generator, and can operate in a stand-alone mode.
| Conversion Time | < 100us |
|---|---|
| Analog Input Voltage Range | OV to 5V (Single +5V Supply) |
No, they are designed to operate with the 8086/80C80/85 bus via three-state outputs and appear as memory locations or I/O ports.
No, none of these A/Ds requires a zero-adjust.