LTC8043
Serial 12-Bit Multiplying
DAC in SO-8
FEATURES
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s
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DESCRIPTION
The LTC
廬
8043 is a serial-input 12-bit multiplying digital-
to-analog converter (DAC). It is a superior pin compatible
replacement for the DAC-8043. Improvements include
better accuracy, better stability over temperature and
supply variations, lower sensitivity to output amplifier
offset, tighter timing specifications and lower output ca-
pacitance.
An easy-to-use 3-wire serial interface is well-suited to
remote or isolated applications
The LTC8043 is extremely versatile. It can be used for
2-quadrant and 4-quadrant multiplying, programmable
gain and single supply applications, such as noninverting
voltage output mode.
Parts are available in 8-pin SO and PDIP packages and are
specified over the extended industrial temperature range,
鈥?40擄C to 85擄C.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Improved Direct Replacement for DAC-8043 and
MAX543
SO-8 Package
DNL and INL Over Temperature:
鹵
0.5LSB
Easy, Fast and Flexible Serial Interface
鹵
1LSB Maximum Gain Error
4-Quadrant Multiplication
Low Power Consumption
Low Cost
APPLICATIONS
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Process Control and Industrial Automation
Remote Microprocessor-Controlled Systems
Digitally Controlled Filters and Power Supplies
Programmable Gain Amplifiers
Automatic Test Equipment
TYPICAL APPLICATION
SO-8 Multiplying DAC Has Easy 3-Wire Serial Interface
V
IN
5V
8
CLOCK
DATA
LOAD
7
6
5
1
2
R
FB
I
OUT
33pF
INTEGRAL NONLINERARITY (LSB)
Integral Nonlinearity Over Temperature
1.0
T
A
= 85擄C
0.5
T
A
= 25擄C
V
DD
V
REF
CLK
SRI
LD
LTC8043
GND
4
+
鈥?/div>
3
0
T
A
= 鈥?0擄C
鈥?.5
LT
廬
1097
V
OUT
LTC8043 鈥?TA01
鈥?.0
0
512 1024 1536 2048 2560 3072 3584 4095
DIGITAL INPUT CODE
LTC8043 鈥?TPC02
U
U
U
1
1
2
3
4
