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LTC1451
LTC1452/LTC1453
12-Bit Rail-to-Rail
Micropower DACs in SO-8
Daisy-Chained Control Outputs
D
IN
CLK
CS/LD
D
OUT
D
IN
CLK
CS/LD
D
OUT
μ
P
0.1
μ
F
CONTROL
OUTPUT 1
CONTROL
OUTPUT 2
V
CC
V
CC
V
OUT
V
OUT
GND
GND
LTC1451
LTC1451
V
REF
V
REF
TO NEXT DAC
0.1
μ
F
5V
1451/2/3 TA01
Differential Nonlinearity
vs Input Code
CODE
0
D
0.5
0.0
–0.5
1024
2048 2560
1451/2/3 TA02
512
1536
3072 3584 4095
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Digital Calibration
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Industrial Process Control
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Automatic Test Equipment
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Cellular Telephones
, LTC and LT are registered trademarks of Linear Technology Corporation.
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12-Bit Resolution
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Buffered True Rail-to-Rail Voltage Output
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3V Operation (LTC1453), I
CC
: 250
μ
A Typ
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5V Operation (LTC1451), I
CC
: 400
μ
A Typ
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3V to 5V Operation (LTC1452), I
CC
: 225
μ
A Typ
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Built-In Reference: 2.048V (LTC1451)
1.220V (LTC1453)
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Multiplying Version (LTC1452)
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Power-On Reset
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SO-8 Package
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3-Wire Cascadable Serial Interface
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Maximum DNL Error: 0.5LSB
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Schmitt Trigger on Clock Input Allows Direct
Optocoupler Interface
The LTC
1451/LTC1452/LTC1453 are complete single
supply, rail-to-rail voltage output 12-bit digital-to-analog
converters (DACs) in an SO-8 package. They include an
output buffer amplifier and an easy-to-use 3-wire
cascadable serial interface.
The LTC1451 has an onboard reference of 2.048V and a
full-scale output of 4.095V. It operates from a single 4.5V
to 5.5V supply.
The LTC1452 is a multiplying DAC with a full-scale output
of twice the reference input voltage. It operates from a
single supply of 2.7V to 5.5V.
The LTC1453 has an onboard 1.22V reference and a full-
scale output of 2.5V. It operates from a single supply of
2.7V to 5.5V.
The low power supply current makes the LTC1451 family
ideal for battery-powered applications. The space saving
8-pin SO package and operation with no external compo-
nents provide the smallest 12-bit DAC system available.
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
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