
1
LTC1658
14-Bit Rail-to-Rail
Micropower DAC in MSOP
FEATURES
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14-Bit Resolution
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8-Lead MSOP Package
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Buffered True Rail-to-Rail Voltage Output
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3V or 5V Single Supply Operation
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Very Low Power: ICC(TYP) = 270A
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Power-On Reset
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3-Wire Cascadable Serial Interface is Compatible
with SPI and MICROWIRE
TM
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Maximum DNL Error: 1LSB
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Low Cost
The LTC
1658 is a single supply, rail-to-rail voltage out-
put, 14-bit digital-to-analog converter (DAC) in an 8-lead
MSOP package. It includes an output buffer amplifier and
an easy-to-use 3-wire cascadable serial interface.
The LTC1658 output swings from 0V to VREF. The REF pin
can be tied to VCC forrail-to-railoutputswing.TheLTC1658
operates from a single 2.7V to 5.5V supply. The typical
power supply current is 270
A.
The low power supply current makes the LTC1658 ideal
for battery-powered applications. The space saving MSOP
provides the smallest 14-bit DAC system available.
DESCRIPTION
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Functional Block Diagram: 14-Bit Rail-to-Rail DAC
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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
APPLICATIONS
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, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
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–
+
14-BIT
DAC
2.7V TO 5.5V
GND
POWER-ON
RESET
TO
OTHER
DACS
16-BIT
SHIFT
REG
AND
DAC
LATCH
P
DIN
VCC
14
REF
2
86
DOUT
4
5
1658 TA01
CLK
1
CS/LD
3
7
RAIL-TO-RAIL
VOLTAGE
OUTPUT
VOUT
MICROWIRE is a trademark of National Semiconductor Corporation.
CODE
0
– 1.0
– 0.2
– 0.4
– 0.6
– 0.8
0
0.2
0.4
0.6
0.8
1.0
DNL
ERROR
(LSB)
4096
8192
1658 TA02
12288
16383
Differential Nonlinearity
vs Input Code