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LTC7541ABSW#TRPBF

Description
DAC 1-CH R-2R 12-bit 18-Pin SOIC W T/R
File Size152KB,4 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC7541ABSW#TRPBF Overview

DAC 1-CH R-2R 12-bit 18-Pin SOIC W T/R

LTC7541ABSW#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Converter TypeGeneral Purpose
ArchitectureR-2R
Resolution12bit
Number of DAC Channels1
Number of Outputs per Chip1
Digital Interface TypeParallel
Output TypeCurrent
Output PolarityUnipolar
Voltage ReferenceExternal
Minimum Single Supply Voltage (V)5
Typical Single Supply Voltage (V)15
Maximum Single Supply Voltage (V)16
Power Supply TypeSingle
Maximum Power Dissipation (mW)450
Integral Nonlinearity Error±0.5LSB
Full Scale Error±2LSB
Digital Supply SupportNo
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
PackagingTape and Reel
Supplier Temperature GradeIndustrial
Pin Count18
Standard Package NameSOP
Supplier PackageSOIC W
MountingSurface Mount
Package Height2.34(Max)
Package Length11.76(Max)
Package Width7.6(Max)
PCB changed18
Lead ShapeGull-wing
LTC7541A
Improved
Industry Standard CMOS
12-Bit Multiplying DAC
FEATURES
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s
s
DESCRIPTION
The LTC
®
7541A is a 12-bit resolution multiplying digital-
to-analog converter (DAC).
Laser-trimmed thin-film resistors provide excellent abso-
lute accuracy. Precision matched resistors and CMOS
circuitry result in remarkable stability with temperature
and supply variations.
The LTC7541A is a superior pin compatible replacement
for the industry standard AD7541A/AD7541. Improve-
ments include better typical accuracy and stability and
reduced sensitivity to output amplifier offset. The LTC7541A
is also very resistant to latch-up.
In addition to 2-quadrant and 4-quadrant multiplying
configurations, the LTC7541A performs well in digitally
programmable gain and noninverting voltage output ap-
plications. Low cost, improved performance and versatil-
ity make the LTC7541A the best choice for many new
designs and for upgrading existing systems. Parts are
available in 18-pin PDIP and 18-pin SO Wide packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
s
s
s
s
s
s
s
Improved Direct Replacement for AD7541A
and AD7541
4-Quadrant Multiplication
12-Bit End-Point Linearity:
±
0.5LSB DNL and INL
Over Temperature
All Grades Guaranteed Monotonic
Maximum Gain Error:
±
1LSB
Single 5V to 15V Supply
TTL and CMOS Logic Compatible
Reduced Sensitivity to Op Amp Offset
Low Power Consumption
Virtually Latch-Up Proof
Low Cost
APPLICATIONS
s
s
s
s
s
Motion Control Systems
Microprocessor-Controlled Calibration
Automatic Test Equipment
Programmable Gain Amplifiers
Digitally Controlled Filters
TYPICAL APPLICATION
2-Quadrant Multiplying DAC Has Less Than
0.5LSB (Typ) Total Unadjusted Error
V
IN
15V
Integral Nonlinearity Over Temperature
1.0
INTEGRAL NONLINEARITY (LSB)
0.1µF
16
V
DD
17
V
REF
18
R
FB
1
OUT 1
33pF
0.5
T
A
= 85°C
0
T
A
= –40°C
–0.5
T
A
= 25°C
LTC7541A
OUT 2
2
GND
4 TO 15
DIGITAL INPUTS
3
LT
®
1097
V
OUT
7541 TA01
–1.0
0
512 1024 1536 2048 2560 3072 3584 4095
DIGITAL INPUT CODE
7541A TA02
U
+
U
U
1
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