LTC2630
Single 12-/10-/8-Bit Rail-toRail DACs with Integrated
Reference in SC70
DESCRIPTION
FEATURES
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Integrated Precision Reference
2.5V Full Scale 10ppm/°C (LTC2630-L)
4.096V Full Scale 10ppm/°C (LTC2630-H)
Maximum INL Error: 1 LSB (LTC2630A-12)
Low Noise: 0.7mVP-P, 0.1Hz to 200kHz
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
Double-Buffered Data Latches
Tiny 6-Lead SC70 Package
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The LTC2630-L has a full-scale output of 2.5V, and
operates from a single 2.7V to 5.5V supply. The
LTC2630-H has a full-scale output of 4.096V, and operates
from a 4.5V to 5.5V supply. Each DAC can also operate in
supply as reference mode, which sets the full-scale output
to the supply voltage.
The parts use a simple SPI/MICROWIRE™ compatible
3-wire serial interface which operates at clock rates up
to 50MHz.
The LTC2630 incorporates a power-on reset circuit. Options are available for reset to zero or reset to midscale
after power-up.
APPLICATIONS
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The LTC®2630 is a family of 12-, 10-, and 8-bit voltageoutput 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.
Mobile Communications
Process Control and Industrial Automation
Automatic Test Equipment
Portable Equipment
Automotive
, 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.
TYPICAL APPLICATION
Integral Nonlinearity (LTC2630A-LZ12)
VCC
INTERNAL
REFERENCE
1.0
SDI
SCK
0.5
RESISTOR
DIVIDER
INL (LSB)
CONTROL
DECODE LOGIC
VCC = 3V
VFS = 2.5V
24-BIT
SHIFT
REGISTER
0
DACREF
CS/LD
–0.5
INPUT
REGISTER
DAC
REGISTER
DAC
VOUT
–1.0
0
1024
2048
3072
4095
CODE
GND
2630 TA03
2630 BD
2630fa
1
