LTC8043_15 Datasheet, PDF (1/4 Pages) Linear Technology – Serial 12-Bit Multiplying DAC in SO-8

LTC8043
Serial 12-Bit Multiplying
DAC in SO-8
FEATURES
s _{Improved Direct Replacement for DAC-8043 and}
MAX543
s _{SO-8 Package}
s _{DNL and INL Over Temperature: ±0.5LSB}
s _{Easy, Fast and Flexible Serial Interface}
s _{±1LSB Maximum Gain Error}
s _{4-Quadrant Multiplication}
s _{Low Power Consumption}
s _{Low Cost}
U
APPLICATIONS
s _{Process Control and Industrial Automation}
s _{Remote Microprocessor-Controlled Systems}
s _{Digitally Controlled Filters and Power Supplies}
s _{Programmable Gain Amplifiers}
s _{Automatic Test Equipment}
TYPICAL APPLICATION
DESCRIPTION
The LTC^®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,
– 40°C to 85°C.
, LTC and LT are registered trademarks of Linear Technology Corporation.
SO-8 Multiplying DAC Has Easy 3-Wire Serial Interface
V_IN
CLOCK
DATA
LOAD
5V
8
1
2
7 ^{VDD VREF RFB}
CLK
6 _{SRI LTC8043}
I_OUT ³
5 _LD
GND
4
33pF
–
LT^®1097
+
V_OUT
LTC8043 • TA01
Integral Nonlinearity Over Temperature
1.0
T_A = 85°C
0.5 _{TA = 25°C}
0
T_A = –40°C
–0.5
–1.0
0 512 1024 1536 2048 2560 3072 3584 4095
DIGITAL INPUT CODE
LTC8043 • TPC02
1