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LTC2635-LMO10 Datasheet(PDF) 1 Page - Linear Technology

Part # LTC2635-LMO10
Description  Quad 12-/10-/8-Bit I2C VOUT DACs with 10ppm/째C Reference
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2635-LMO10 Datasheet(HTML) 1 Page - Linear Technology

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LTC2635

2635fb
Block Diagram
Description
Quad 12-/10-/8-Bit I2C VOUT
DACs with 10ppm/°C Reference
The LTC®2635 is a family of quad 12-, 10-, and 8-bit
voltage-output DACs with an integrated, high-accuracy,
low-drift reference in a 16-pin QFN or a 10-lead MSOP
package. It has rail-to-rail output buffers and is guaran-
teed monotonic. The LTC2635-L has a full-scale output
of 2.5V, and operates from a single 2.7V to 5.5V supply.
The LTC2635-H has a full-scale output of 4.096V, and
operates from a 4.5V to 5.5V supply. Each DAC can also
operate with an external reference, which sets the full-
scale output to the external reference voltage.
These DACs communicate via a 2-wire I2C-compatible
serialinterface.TheLTC2635operatesinboththestandard
mode (clock rate of 100kHz) and the fast mode (clock rate
of 400kHz). The LTC2635 incorporates a power-on reset
circuit. Options are available for reset to zero-scale, reset
tomid-scaleininternalreferencemode,resettomid-scale
in external reference mode, or reset with all DAC outputs
in a high-impedance state after power-up.
Integral Nonlinerity
Features
applications
n
Integrated Precision Reference
2.5V Full-Scale 10ppm/°C (LTC2635-L)
4.096V Full-Scale 10ppm/°C (LTC2635-H)
n
Maximum INL Error: ±2.5 LSB (LTC2635-12)
n
Power-On-Reset to Zero-Scale/Mid-Scale/Hi-Z
n
Low Noise: 0.75mVP-P 0.1Hz to 200kHz
n
Guaranteed Monotonic Over –40°C to 125°C
Automotive Temperature Range
n
Selectable Internal or External Reference
n
2.7V to 5.5V Supply Range (LTC2635-L)
n
Ultralow Crosstalk Between DACs (3nV•s)
n
Low Power: 0.6mA at 3V
n
Double-Buffered Data Latches
n
Small 16-Pin 3mm × 3mm QFN and 10-Lead MSOP
Packages
n
Mobile Communications
n
Process Control and Industrial Automation
n
Power Supply Margining
n
Portable Equipment
n
Automotive
DAC A
VOUTA
(REFLO)
(LDAC)
CA0
(CA1)
(CA2)
( ) QFN PACKAGE ONLY
GND
VOUTB
VREF
DAC D
DAC B
DAC C
VREF
VOUTD
REF
VCC
VREF
VOUTC
SWITCH
INTERNAL
REFERENCE
I2C INTERFACE
DECODE
I2C
ADDRESS
DECODE
POWER-ON
RESET
SCL
SDA
2635 BD
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents, including 5396245, 5859606, 6891433,
6937178, 7414561.
CODE
0
2
1
0
–1
–2
1024
3072
2635 TA01
4095
2048
VCC = 3V
INTERNAL REF.


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