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LTC2656BIUFD-H16PBF Datasheet(PDF) 1 Page - Linear Technology

Part # LTC2656BIUFD-H16PBF
Description  Octal 16-/12-Bit Rail-to-Rail DACs with 10ppm/째C Max Reference
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2656BIUFD-H16PBF Datasheet(HTML) 1 Page - Linear Technology

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LTC2656
1
2656f
BLOCK DIAGRAM
FEATURES
APPLICATIONS
DESCRIPTION
Octal 16-/12-Bit Rail-to-Rail
DACs with 10ppm/°C
Max Reference
n Mobile Communications
n Process Control and Industrial Automation
n Instrumentation
n Automatic Test Equipment
n Automotive
L, 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, 6891433.
n Precision 10ppm/°C Max Reference
n Maximum INL Error: ±4LSB at 16 Bits
n Guaranteed Monotonic over Temperature
n Selectable Internal or External Reference
n 2.7V to 5.5V Supply Range (LTC2656-L)
n Integrated Reference Buffers
n Ultralow Crosstalk Between DACs(<1nV•s)
n Power-On-Reset to Zero-Scale/Mid-scale
n Asynchronous LDAC Update Pin
n Tiny 20-Lead 4mm
× 5mm QFN and 20-Lead
Thermally Enhanced TSSOP Packages
The LTC
®2656 is a family of octal 16-/12-bit rail-to-rail
DACs with a precision integrated reference. The DACs have
built-in high performance, rail-to-rail, output buffers and
are guaranteed monotonic.The LTC2656-L has a full-scale
output of 2.5V with the integrated 10ppm/°C reference and
operates from a single 2.7V to 5.5V supply. The LTC2656-H
has a full-scale output of 4.096V with the integrated refer-
ence and operates from a 4.5V to 5.5V supply. Each DAC can
also operate with an external reference, which sets the DAC
full-scale output to two times the external reference voltage.
These DACs communicate via a SPI/MICROWIRE™ com-
patible 4-wire serial interface which operates at clock rates
up to 50MHz. The LTC2656 incorporates a power-on reset
circuit that is controlled by the PORSEL pin. If PORSEL
is tied to GND the DACs reset to zero-scale. If PORSEL is
tied to VCC, the DACs reset to mid-scale.
INTERNAL REFERENCE
DECODE
CONTROL LOGIC
POWER-ON RESET
32-BIT SHIFT REGISTER
REFCOMP
REFIN/OUT
VCC
GND
DAC A
REF
REF
REF
REF
REF
REF
REF
REF
DAC H
VOUTH
DAC G
VOUTG
DAC F
VOUTF
DAC E
VOUTE
PORSEL
SDO
SDI
2656 BD
CLR
REFLO
VOUTA
DAC B
VOUTB
DAC C
VOUTC
DAC D
VOUTD
SCK
LDAC
CS/LD
CODE
128
0
1
2
65535
2656 TA01
–1
–2
–4
16384
32768
49152
–3
4
3
DAC A
DAC B
DAC C
DAC D
DAC E
DAC F
DAC G
DAC H
INL vs Code


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