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LTC2634CUD-LZ8#TRPBF

Description
Digital to Analog Converters - DAC 8-Bit SPI Quad DAC (2.5V ref, Reset to Zero-Scale)
CategoryAnalog mixed-signal IC    converter   
File Size616KB,30 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC2634CUD-LZ8#TRPBF Overview

Digital to Analog Converters - DAC 8-Bit SPI Quad DAC (2.5V ref, Reset to Zero-Scale)

LTC2634CUD-LZ8#TRPBF Parametric

Parameter NameAttribute value
Brand NameAnalog Devices Inc
Is it lead-free?Contains lead
Is it Rohs certified?conform to
MakerADI
package instructionHVQCCN,
Contacts16
Manufacturer packaging code05-08-1691
Reach Compliance Codecompliant
Maximum analog output voltage2.5 V
Minimum analog output voltage
Converter typeD/A CONVERTER
Enter bit codeBINARY
Input formatSERIAL
JESD-30 codeS-PQCC-N16
JESD-609 codee3
length3 mm
Maximum linear error (EL)0.1953%
Humidity sensitivity level1
Number of digits8
Number of functions1
Number of terminals16
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeHVQCCN
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.8 mm
Nominal settling time (tstl)3.3 µs
Nominal supply voltage3 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature30
width3 mm
LTC2634
Quad 12-/10-/8-Bit
Rail-to-Rail DACs with
10ppm/°C Reference
FEATURES
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DESCRIPTION
The
LTC
®
2634
is a family of quad 12-, 10- and 8-bit volt-
age output DACs with an integrated, high accuracy, low
drift 10ppm/°C reference in 16-lead QFN and 10-lead
MSOP packages. It has rail-to-rail output buffers and is
guaranteed monotonic. The LTC2634-L has a full-scale
output of 2.5V, and operates from a single 2.7V to 5.5V
supply. The LTC2634-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 an SPI/MICROWIRE com-
patible 3-wire serial interface which operates at clock
rates up to 50MHz. Serial data output (SDO), a hardware
clear (CLR), and an asynchronous DAC update (LDAC)
capability are available in the QFN package. The LTC2634
incorporates a power-on reset circuit. Options are avail-
able for reset to zero-scale or reset to mid-scale in internal
reference mode, or reset to mid-scale in external refer-
ence mode after power-up.
All registered trademarks and trademarks are the property of their respective owners. Protected
by U.S. patents, including 5396245, 5859606, 6891433, 6937178, 7414561.
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Integrated Precision Reference
2.5V Full-Scale 10ppm/°C (LTC2634-L)
4.096V Full-Scale 10ppm/°C (LTC2634-H)
Maximum INL Error: ±2.5 LSB (LTC2634-12)
Low Noise: 0.75mV
P-P
0.1Hz to 200KHz
Guaranteed Monotonic over –40°C to 125°C
Temperature Range
Selectable Internal or External Reference
2.7V to 5.5V Supply Range (LTC2634-L)
Ultralow Crosstalk Between DACs (2.4nV•s)
Low Power: 0.6mA at 3V
Power-On Reset to Zero-Scale/Mid-Scale
Double Buffered Data Latches
Tiny 16-Lead 3mm
×
3mm QFN and 10-Lead
MSOP Packages
APPLICATIONS
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Mobile Communications
Process Control and Industrial Automation
Automatic Test Equipment
Portable Equipment
Automotive
BLOCK DIAGRAM
GND
INTERNAL
REFERENCE
SWITCH
V
REF
(REFLO)
REGISTER
REGISTER
REGISTER
V
OUTA
REGISTER
V
CC
2
DAC D
V
OUTD
1
INL (LSB)
REF
Integral Nonlinearity
(LTC2634-LZ12)
V
CC
= 3V
INTERNAL REF
DAC A
V
REF
REGISTER
REGISTER
REGISTER
V
OUTB
REGISTER
DAC B
DAC C
V
REF
V
OUTC
0
CS/LD
CONTROL
LOGIC
DECODE
SDI
–1
–2
SCK
(LDAC)
( ) QFN PACKAGE ONLY
32-BIT SHIFT REGISTER
POWER-ON
RESET
(CLR)
(SDO)
2634 BD
0
1024
2048
CODE
3072
4095
2634 TA01
Rev D
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For more information
www.analog.com
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