Pentek 6210 Operating Manual page 153

FEATURES
12-Bit Resolution
Buffered True Rail-to-Rail Voltage Output
3V Operation (LTC1453), I
5V Operation (LTC1451), I
3V to 5V Operation (LTC1452), I
Built-In Reference: 2.048V (LTC1451)
1.220V (LTC1453)
Multiplying Version (LTC1452)
Power-On Reset
SO-8 Package
3-Wire Cascadable Serial Interface
Maximum DNL Error: 0.5LSB
Schmitt Trigger on Clock Input Allows Direct
Optocoupler Interface
U
APPLICATIO S
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Cellular Telephones
TYPICAL APPLICATIO
Daisy-Chained Control Outputs
D
IN
CLK
µP
CS/LD
D
OUT
D
IN
CLK
CS/LD
D
OUT
TO NEXT DAC
: 250µA Typ
CC
: 400µA Typ
CC
: 225µA Typ
CC
5V
0.1µF
V
CC
CONTROL
V
LTC1451
OUT
OUTPUT 1
V GND
REF
0.1µF
V
CC
CONTROL
V
LTC1451
OUT
OUTPUT 2
V GND
REF
1451/2/3 TA01
12-Bit Rail-to-Rail
Micropower DACs in SO-8
DESCRIPTIO
®
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.
, LTC and LT are registered trademarks of
Differential Nonlinearity
vs Input Code
0.5
0.0
–0.5
0 512 1024 1536
LTC1451
LTC1452/LTC1453
Linear Technology Corporation.
2048 2560 3072 3584 4095
CODE
1451/2/3 TA02
1