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LTC1446LCN8#PBF

Description
DAC 2-CH Segment 12-bit 8-Pin PDIP N Tube
File Size172KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC1446LCN8#PBF Overview

DAC 2-CH Segment 12-bit 8-Pin PDIP N Tube

LTC1446LCN8#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
Converter TypeGeneral Purpose
ArchitectureSegment
Resolution12bit
Number of DAC Channels2
Number of Outputs per Chip2
Maximum Settling Time (us)14(Typ)
Digital Interface TypeSerial (3-Wire)
Output TypeVoltage
Output PolarityUnipolar
Voltage ReferenceInternal
Minimum Single Supply Voltage (V)2.7
Typical Single Supply Voltage (V)5|3
Maximum Single Supply Voltage (V)5.5
Power Supply TypeSingle
Integral Nonlinearity Error5LSB
Digital Supply SupportNo
Minimum Operating Temperature (°C)0
Maximum Operating Temperature (°C)70
PackagingTube
Pin Count8
Standard Package NameDIP
Supplier PackagePDIP N
MountingThrough Hole
Package Height3.3
Package Length10.16(Max)
Package Width6.48
PCB changed8
Lead ShapeThrough Hole
LTC1446/LTC1446L
Dual 12-Bit Rail-to-Rail
Micropower DACs in SO-8
FEATURES
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
s
s
Dual DACs with 12-Bit Resolution
SO-8 Package
Rail-to-Rail Output Amplifiers
Internal Reference
Maximum DNL Error: 0.5LSB
3V Operation (LTC1446L): I
CC
= 650µA Typ
5V Operation (LTC1446): I
CC
= 1000µA Typ
Settling Time: 14µs to
±0.5LSB
Power-On Reset Clears DACs to 0V
3-Wire Cascadable Serial Interface with 500kHz
Update Rate
Schmitt Trigger On Input Allows Direct
Optocoupler Interface
Low Cost
The LTC
®
1446/LTC1446L are dual 12-bit digital-to-analog
converters (DACs) available in an SO-8 package. They are
complete with a rail-to-rail voltage output amplifier, an
internal reference and an easy-to-use 3-wire cascadable
serial interface.
The LTC1446 has an internal reference and a full-scale
output of 4.095V. It operates from a single 4.5V to 5.5V
supply.
The LTC1446L has an internal reference and a full-scale
output of 2.5V. It operates from a single 2.7V to 5.5V
supply.
The low power supply current makes the LTC1446 family
ideal for battery-powered applications. These DACs are
available in space saving 8-pin SO and PDIP packages and
require no external components for operation.
APPLICATIO S
s
s
s
s
Digital Calibration
Industrial Process Control
Automatic Test Equipment
Cellular Telephones
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
Functional Block Diagram: Dual 12-Bit Rail-to-Rail DAC
7
V
CC
2 D
IN
LTC1446: 5V
LTC1446L: 3V TO 5V
+
12-BIT
DAC B
V
OUT B
8
1 CLK
3 CS/LD
24-BIT
SHIFT
REG
AND
DAC
LATCH
12-BIT
DAC A
4 D
OUT
POWER-ON
RESET
GND
6
1446/1446L TA01
DNL ERROR (LSB)
µP
RAIL-TO-RAIL
VOLTAGE
OUTPUT
+
V
OUT A
5
U
Differential Nonlinearity vs Input Code
0.5
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
1446/46L G13
U
U
1
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