National Semiconductor ADC0801/ADC0802/ADC0803/ADC0804/ADC0805 8‑Bit µP Compatible A/D Converters Datasheet

About this manual

The ADC0801‑ADC0805 family are CMOS 8‑bit successive‑approximation A/D converters designed for direct interfacing with 8080‑compatible microprocessors such as the NSC800 and INS8080A. They operate without external interfacing logic, offering differential analog inputs, on‑chip clock generation, and a wide input voltage range.

Key features include a 0.3‑inch 20‑pin DIP or small‑outline package, supply voltage of 4.5‑6.3 VDC, conversion time of about 100 µs, and a total adjusted error of ±¼ LSB. The datasheet provides detailed electrical characteristics, timing diagrams, and example applications ranging from ratiometric transducers to self‑clocking multi‑converter setups.

What's inside

• General Description
• Key Features
• Key Specifications
• Absolute Maximum Ratings
• Electrical Characteristics
• Timing Diagrams
• Typical Applications
• Physical Dimensions
• Life Support Policy

Specifications

Frequently asked questions

What is the conversion time of the ADC0801‑ADC0805 converters?

The typical conversion time is 100 µs.

What supply voltage range is required for these converters?

They operate from 4.5 VDC up to 6.3 VDC.

Which microprocessor families are compatible with the ADC0801‑ADC0805?

They are compatible with 8080 µP derivatives, such as the NSC800 and INS8080A.

What package options are available for the ADC0801‑ADC0805 devices?

They are offered in a 0.3‑inch 20‑pin DIP package and a small‑outline (SO) package.