LTC7541 Linear Technology Corporation, LTC7541 Datasheet
LTC7541
Manufacturer Part Number
LTC7541
Description
Manufacturer
Linear Technology Corporation
Specifications of LTC7541
Case
DIP18
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APPLICATIONS
FEATURES
TYPICAL
V
IN
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
Motion Control Systems
Microprocessor-Controlled Calibration
Automatic Test Equipment
Programmable Gain Amplifiers
Digitally Controlled Filters
0.1 F
DIGITAL INPUTS
2-Quadrant Multiplying DAC Has Less Than
15V
V
4 TO 15
DD
16
0.5LSB (Typ) Total Unadjusted Error
APPLICATION
LTC7541A
V
REF
17
U
GND
R
FB
OUT 1
OUT 2
18
3
1
2
33pF
U
–
+
LT
®
1097
7541 TA01
V
OUT
DESCRIPTION
The LTC
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.
Industry Standard CMOS
®
12-Bit Multiplying DAC
7541A is a 12-bit resolution multiplying digital-
–0.5
–1.0
1.0
0.5
Integral Nonlinearity Over Temperature
0
0
512
U
T
A
1024
= 85 C
DIGITAL INPUT CODE
1536
T
A
T
2048
= 25 C
A
= –40 C
2560
Improved
3072
LTC7541A
3584
7541A TA02
4095
1