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TL/H/5675

ADC1001 10-Bit mP Compatible A/D Converter

December 1994

ADC1001 10-Bit mP Compatible A/D Converter

General Description

The ADC1001 is a CMOS, 10-bit successive approximation

A/D converter. The 20-pin ADC1001 is pin compatible with

the ADC0801 8-bit A/D family. The 10-bit data word is read

in two 8-bit bytes, formatted left justified and high byte first.

The six least significant bits of the second byte are set to

zero, as is proper for a 16-bit word.

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 10-

bit resolution.

Features

ADC1001 is pin compatible with ADC0801 series 8-bit

A/D converters

Compatible with NSC800 and 8080 mP derivativesÐno

interfacing logic needed

Easily interfaced to 6800 mP derivatives with minimal

external logic

Differential analog voltage inputs

Logic inputs and outputs meet both MOS and TTL volt-

age level specifications

Works with 2.5V (LM336) voltage reference

On-chip clock generator

0V to 5V analog input voltage range with single 5V sup-

ply

Operates ratiometrically or with 5 V

, 2.5 V

, or ana-

log span adjusted voltage reference

0.3

standard width 20-pin DIP package

Key Specifications

Resolution 10 bits

Linearity error

1 LSB

Conversion time 200mS

Connection Diagram

ADC1001 (for an 8-bit data bus)

Dual-In-Line Package

TL/H/5675–11

Top View

Ordering Information

Temperature Range 0

Cto

Order Number ADC1001CCJ-1 ADC1001CCJ

Package Outline J20A J20A

TRI-STATE

is a registered trademark of National Semiconductor Corp.

1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.

1 2 3 4 5 6 7 8

Resumo do Conteúdo

Página 1 - Ordering Information

TL/H/5675ADC1001 10-Bit mP Compatible A/D ConverterDecember 1994ADC1001 10-Bit mP Compatible A/D ConverterGeneral DescriptionThe ADC1001 is a CMOS, 10

Página 2 - AC Electrical Characteristics

Absolute Maximum Ratings (Notes1&2)If Military/Aerospace specified devices are required,please contact the National Semiconductor SalesOffice/Dist

Página 3 - DC Electrical Characteristics

DC Electrical CharacteristicsThe following specifications apply for VCCe5VDCand TMINsTAsTMAX, unless otherwise specified.Symbol Parameter Conditions M

Página 4 - TL/H/5675–2

Typical Performance CharacteristicsLogic Input ThresholdVoltage vs Supply VoltageDelay From Falling Edge ofRDto Output Data Validvs Load CapacitanceCL

Página 5 - Timing Diagrams

Timing DiagramsTL/H/5675–7Output Enable and Reset INTRTL/H/5675–8Note: All timing is measured from the 50% voltage points.BYTE SEQUENCING FOR THE 20-P

Página 6 - Functional Description

Functional DescriptionThe ADC1001 uses an advanced potentiometric resistiveladder network. The analog inputs, as well as the taps ofthis ladder networ

Página 7 - Block Diagram

Typical ApplicationTL/H/5675–1Block DiagramNote 1: CS shown twice for clarity. TL/H/5675–13Note 2: SAReSuccessive Approximation Register. FIGURE 17

Página 8

ADC1001 10-Bit mP Compatible A/D ConverterPhysical Dimensions inches (millimeters)Cavity Dual-In-Line Package (J) (Side Brazed)Order Number ADC1001CCJ

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Rainbow-electronics ADC1001 Manual do Utilizador Página 1

Consulte online ou descarregue Manual do Utilizador para Sensores Rainbow-electronics ADC1001. Rainbow Electronics ADC1001 User Manual Manual do Utilizador

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Rainbow-electronics ADC1001 Manual do Utilizador Página 1

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