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DAC1021LCN Fiches technique(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce DAC1021LCN
Description  10-Bit, 12-Bit Binary Multiplying D/A Converter
Download  14 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

DAC1021LCN Fiches technique(HTML) 1 Page - National Semiconductor (TI)

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TLH5689
May 1996
DAC1020DAC1021DAC1022
10-Bit Binary Multiplying DA Converter
DAC1220DAC1222
12-Bit Binary Multiplying DA 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 (00002% 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 DTLTTL 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 DA 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 Va
and ground
This part is available with 10-bit (005%) 9-bit (010%) and
8-bit (020%) non-linearity guaranteed over temperature
(note 1 of electrical characteristics)
The DAC1020
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
Y
Linearity specified with zero and full-scale adjust only
Y
Non-linearity guaranteed over temperature
Y
Integrated thin film on CMOS structure
Y
10-bit or 12-bit resolution
Y
Low power dissipation 10 mW
15V typ
Y
Accepts variable or fixed reference b25VsVREFs25V
Y
4-quadrant multiplying capability
Y
Interfaces directly with DTL TTL and CMOS
Y
Fast settling time500 ns typ
Y
Low feedthrough error
LSB
100 kHz typ
Equivalent Circuit
Note Switches shown in digital high state
TLH5689 – 1
10-BIT DA CONVERTERS
Ordering Information
Temperature Range
0 Cto70 C
b
40 Cto85 C
Non-
005%
DAC1020LCN
AD7520LNAD7530LN
DAC1020LCV
DAC1020LIV
Linearity
010%
DAC1021LCN
AD7520KNAD7530KN
020%
DAC1022LCN
AD7520JNAD7530JN
Package Outline
N16A
V20A
12-BIT DA CONVERTERS
Temperature Range
0 Cto70 C
b
40 Cto a85 C
Linearity
Non-
005%
DAC1220LCN
AD7521LNAD7531LN
DAC1220LCJ
AD7521LDAD7531LD
020%
DAC1222LCN
AD7521JNAD7531JN
DAC1222LCJ
AD7521JDAD7531JD
Package Outline
N18A
J18A
Note
Devices may be ordered by either part number
C1996 National Semiconductor Corporation
RRD-B30M96Printed in U S A
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