LTC2630
Single 12-/10-/8-Bit Rail-to-
Rail DACs with Integrated
Reference in SC70
FEATURES
DESCRIPTION
The LTC®2630 is a family of 12-, 10-, and 8-bit voltage-
output DACs with an integrated, high-accuracy, low-drift
reference in a 6-lead SC70 package. It has a rail-to-rail
output buffer and is guaranteed monotonic.
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Integrated Precision Reference
2.5V Full Scale 10ppm/°C (LTC2630-L)
4.096V Full Scale 10ppm/°C (LTC2630-H)
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Maximum INL Error: 1 LSB (LTC2630A-12)
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Low Noise: 0.7mV , 0.1Hz to 200kHz
P-P
The LTC2630-L has a full-scale output of 2.5V, and
operates from a single 2.7V to 5.5V supply. The
LTC2630-Hhasafull-scaleoutputof4.096V, andoperates
from a 4.5V to 5.5V supply. Each DAC can also operate in
supplyasreferencemode, whichsetsthefull-scaleoutput
to the supply voltage.
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Guaranteed Monotonic over Temperature
Selectable Internal Reference or Supply as Reference
2.7V to 5.5V Supply Range (LTC2630-L)
Low Power Operation: 180μA at 3V
Power Down to 1.8μA Maximum (C and I Grades)
Power-on Reset to Zero or Midscale Options
SPI Serial Interface
The parts use a simple SPI/MICROWIRE™ compatible
3-wire serial interface which operates at clock rates up
to 50MHz.
Double-Buffered Data Latches
Tiny 6-Lead SC70 Package
The LTC2630 incorporates a power-on reset circuit. Op-
tions are available for reset to zero or reset to midscale
after power-up.
APPLICATIONS
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Mobile Communications
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, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents
including 5396245, 5859606, 6891433 and 6937178.
Process Control and Industrial Automation
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Automatic Test Equipment
Portable Equipment
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Automotive
TYPICAL APPLICATION
V
Integral Nonlinearity (LTC2630A-LZ12)
CC
INTERNAL
REFERENCE
1.0
V
CC
V
FS
= 3V
= 2.5V
SDI
0.5
0
CONTROL
DECODE LOGIC
RESISTOR
DIVIDER
24-BIT
SCK
SHIFT
REGISTER
DACREF
DAC
–0.5
–1.0
CS/LD
V
OUT
INPUT
REGISTER
DAC
REGISTER
2048
3072
0
4095
1024
CODE
GND
2630 TA03
2630 BD
2630fa
1