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LTC1458CSW#PBF

Description
IC D/A CONV 12BIT R-R QUAD28SOIC
CategoryAnalog mixed-signal IC    converter   
File Size166KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC1458CSW#PBF Overview

IC D/A CONV 12BIT R-R QUAD28SOIC

LTC1458CSW#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
Parts packaging codeSOIC
package instructionSOP, SOP28,.4
Contacts28
Manufacturer packaging codeSW
Reach Compliance Codecompliant
ECCN codeEAR99
Maximum analog output voltage4.145 V
Minimum analog output voltage4.045 V
Converter typeD/A CONVERTER
Enter bit codeBINARY
Input formatSERIAL
JESD-30 codeR-PDSO-G28
JESD-609 codee3
length17.9 mm
Maximum linear error (EL)0.1099%
Humidity sensitivity level1
Number of digits12
Number of functions4
Number of terminals28
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP28,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
power supply5 V
Certification statusNot Qualified
Maximum seat height2.65 mm
Nominal settling time (tstl)14 µs
Maximum slew rate2.4 mA
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width7.5 mm
Base Number Matches1
LTC1458/LTC1458L
Quad 12-Bit Rail-to-Rail
Micropower DACs
FEATURES
s
s
s
s
s
s
s
s
DESCRIPTIO
s
s
s
s
Quad 12-Bit DAC
Buffered True Rail-to-Rail Voltage Output
Maximum DNL Error: 0.5LSB
5V Operation, I
CC
: 1.1mA Typ (LTC1458)
3V Operation, I
CC
: 800µA Typ (LTC1458L)
Internal or External Reference Operation
Settling Time: 14µs to
±0.5LSB
Schmitt Trigger On Clock Input Allows Direct
Optocoupler Interface
Power-On Reset and CLR Pin
SSOP-28 Package
3-Wire Cascadable Serial Interface with 250kHz
Update Rate
Low Cost
The LTC
®
1458/LTC1458L are complete single supply,
quad rail-to-rail voltage output, 12-bit digital-to-analog
converters (DACs) in SO-28 and SSOP-28 packages. They
include an output buffer amplifier with variable gain (×1 or
×
2) and an easy-to-use 3-wire cascadable serial interface.
The LTC1458 has an onboard reference of 2.048V and a
full-scale output of 4.095V in a
×
2 gain configuration. It
operates from a single 4.5V to 5.5V supply dissipating
only 5.5mW (I
CC
= 1.1mA typ).
The LTC1458L has an onboard 1.22V reference and a full-
scale output of 2.5V in a
×2
gain configuration. It operates
from a single supply of 2.7V to 5.5V dissipating 2.4mW.
Excellent DNL, low supply current and a wide range of
built-in functions allow these parts to be used in a host of
applications when flexibility, power and single supply
operation are important.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Low Power Systems
TYPICAL APPLICATIO
Control Outputs
Daisy-Chained
Functional Block Diagram: Quad 12-Bit Rail-to-Rail DAC
2.048V (LTC1458)
1.22V (LTC1458L)
REFOUT
REFHI C
FROM
µP
5V (LTC1458)
3V TO 5V (LTC1458L)
D
IN
V
CC
0.5
CS/LD CLK
REFHI B
V
OUT C
X1/X2 C
REFLO C
REFHI D
V
OUT D
X1/X2 D
REFLO D
DAC C
48-BIT
SHIFT REGISTER
AND
DAC REGISTER
DAC D
DAC B
V
OUT B
DNL (LSB)
X1/X2 B
REFLO B
REFHI A
DAC A
V
OUT A
X1/X2 A
REFLO A
CLR
D
OUT
1458 BD01
U
Differential Nonlinearity
vs Input Code
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
0
512 1024 1536 2048 2560 3072 3584 4095
CODE
1458 G09
U
U
1
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