ADC0841

8-Bit µP Compatible A/D Converter

General Description

The ADC0841 is a CMOS 8-bit successive approximation

A/D converter. Differential inputs provide low frequency input

common mode rejection and allow offsetting the analog

range of the converter. In addition, the reference input can

be adjusted enabling the conversion of reduced analog

ranges with 8-bit resolution.

The A/D is designed to operate with the control bus of a va-

rectly drive the data bus permit the A/D to be configured as

a memory location or I/O device to the microprocessor with

no interface logic necessary.

Features

n Easy interface to all microprocessors

n No zero or full-scale adjust required

n Internal clock

n 0V to 5V input range with single 5V power supply

n 0.3" standard width 20-pin package

n 20 Pin Molded Chip Carrier Package

Key Specifications

n Resolution:

8 Bits

n Total Unadjusted Error:

n Single Supply:

5 V

DC

n Low Power:

15 mW

n Conversion Time:

40 µs

Block and Connection Diagrams

DS008557-1

Dual-In-Line Package (N)

DS008557-2

(N.C.-No Connection)

Top View

Molded Chip Carrier Package (V)

DS008557-3

Top View

May 1998

© 1999 National Semiconductor Corporation

DS008557

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