DAC1222LCJ National Semiconductor, DAC1222LCJ Datasheet

DAC1222LCJ

Manufacturer Part Number

DAC1222LCJ

Description

Manufacturer

National Semiconductor

Datasheets

1.AD7531JD.pdf (14 pages)

2.DAC1020LCN.pdf (14 pages)

3.DAC1020LCN.pdf (14 pages)

Specifications of DAC1222LCJ

Date_code

96+

Current page: 1 of 14
Download datasheet (226Kb)

C 1996 National Semiconductor Corporation

DAC1020 DAC1021 DAC1022

10-Bit Binary Multiplying D A Converter

DAC1220 DAC1222

12-Bit Binary Multiplying D A Converter

General Description

The DAC1020 and the DAC1220 are respectively 10 and

12-bit binary multiplying digital-to-analog converters A de-

posited thin film R-2R resistor ladder divides the reference

current and provides the circuit with excellent temperature

tracking characteristics (0 0002% C linearity error temper-

ature coefficient maximum) The circuit uses CMOS current

switches and drive circuitry to achieve low power consump-

tion (30 mW max) and low output leakages (200 nA max)

The digital inputs are compatible with DTL TTL logic levels

as well as full CMOS logic level swings This part combined

with an external amplifier and voltage reference can be

used as a standard D A converter however it is also very

attractive for multiplying applications (such as digitally con-

trolled gain blocks) since its linearity error is essentially in-

dependent of the voltage reference All inputs are protected

from damage due to static discharge by diode clamps to V

and ground

This part is available with 10-bit (0 05%) 9-bit (0 10%) and

8-bit (0 20%) non-linearity guaranteed over temperature

Equivalent Circuit

Ordering Information

Note Devices may be ordered by either part number

Temperature Range

Linearity

Temperature Range

Non-

Package Outline

0 05%

0 20%

0 05%

0 10%

0 20%

DAC1220LCN

DAC1222LCN

TL H 5689

DAC1020LCN

DAC1021LCN

DAC1022LCN

Note Switches shown in digital high state

0 C to 70 C

10-BIT D A CONVERTERS

12-BIT D A CONVERTERS

N18A

AD7521LN AD7531LN

AD7521JN AD7531JN

N16A

AD7520KN AD7530KN

AD7520LN AD7530LN

AD7520JN AD7530JN

0 C to 70 C

(note 1 of electrical characteristics)

DAC1021 and DAC1022 are direct replacements for the 10-

bit resolution AD7520 and AD7530 and equivalent to the

AD7533 family The DAC1220 and DAC1222 are direct re-

placements for the 12-bit resolution AD7521 and AD7531

family

Features

Linearity specified with zero and full-scale adjust only

Non-linearity guaranteed over temperature

Integrated thin film on CMOS structure

10-bit or 12-bit resolution

Low power dissipation 10 mW

Accepts variable or fixed reference

4-quadrant multiplying capability

Interfaces directly with DTL TTL and CMOS

Fast settling time 500 ns typ

Low feedthrough error

RRD-B30M96 Printed in U S A

DAC1220LCJ

DAC1222LCJ

DAC1020LCV

40 C to

LSB

J18A

AD7521LD AD7531LD

AD7521JD AD7531JD

15V typ

V20A

100 kHz typ

85 C

http

25V

DAC1020LIV

The DAC1020

40 C to 85 C

www national com

REF s

TL H 5689 – 1

May 1996

25V

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