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LTC1448IN8 Datasheet

  • LTC1448IN8

  • Dual 12-Bit Rail-to-Rail Micropower DAC

  • 12頁(yè)

  • LINER

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LTC1448
Dual 12-Bit Rail-to-Rail
Micropower DAC
FEATURES
s
s
s
s
s
s
s
DESCRIPTION
The LTC
廬
1448 is a dual rail-to-rail voltage output, 12-bit
digital-to-analog converter (DAC). It includes rail-to-rail
output buffer amplifiers and an easy-to-use 3-wire serial
interface. It is available in 8-pin SO and PDIP packages and
provides the smallest footprint of any dual 12-bit DAC.
The LTC1448 has an external reference input pin (REF)
and its outputs swing from 0V to REF. The REF input can
be tied to V
CC
providing rail-to-rail operation from supplies
of 2.7V to 5.5V. (For devices with internal reference see the
LTC1446 data sheet.) The LTC1448 dissipates 2.5mW
from a 5V supply.
The low power supply current and the small SO-8 package
make the LTC1448 ideal for battery-powered applications.
s
s
s
s
SO-8 Package
12-Bit Resolution
Buffered True Rail-to-Rail Voltage Output
External Reference Input Can Be Tied to V
CC
Output Swings from 0V to V
REF
3V and 5V Supply Operation
Schmitt Trigger on Clock Input Allows Direct
Optocoupler Interface
Power-On Reset Clears DACs to 0V
3-Wire Serial Interface
Maximum DNL Error: 0.5LSB
Low Cost
APPLICATIONS
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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: 12-Bit Rail-to-Rail Dual DAC
2.7V TO 5.5V
0.5
7
V
CC
2 D
IN
4
REF
DNL ERROR (LSB)
+
12-BIT
DAC B
V
OUT B
8
碌P
1 CLK
3 CS/LD
24-BIT
SHIFT
REG
AND
DAC
LATCH
鈥?/div>
RAIL-TO-RAIL
VOLTAGE
OUTPUTS
+
12-BIT
DAC A
V
OUT A
5
鈥?/div>
POWER-ON
RESET
GND
6
1448 TA01
U
U
U
Differential Nonlinearity
vs Input Code
0.4
0.3
0.2
0.1
0
鈥?.1
鈥?.2
鈥?.3
鈥?.4
鈥?.5
0
512 1024 1536 2048 2560 3072 3584 4095
CODE
1448 TA02
1

LTC1448IN8 產(chǎn)品屬性

  • LTC1448

  • 50

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器

  • -

  • 14µs

  • 12

  • 串行

  • 2

  • 單電源

  • 2.5mW

  • -40°C ~ 85°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

  • 2 電壓，單極

  • *

LTC1448IN8相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Dual Micropower Comparator
    LINER
  • 英文版
    DUAL MICROPOWER COMPARATOR
    LINER [Lin...
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    Dual Micropower Comparator
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    BANG-BANG Controller
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    BANG-BANG Controller
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    Window Comparator
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    Window Comparator
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    Window Comparator
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    2-Channel Differential Input 16-Bit No Latency DS ADC
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    2-Channel Differential Input 24-Bit No Latency DS ADC
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    2-Channel Differential Input 16-Bit No Latency DS ADC
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    Dual Precision Intrumentation Switched-Capacitor Building Bl...
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  • 英文版
    Switched Capacitor Voltage Converter
    LINER
  • 英文版
    Switched Capacitor Voltage Converter
    LINER [Lin...
  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
    LINER
  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
    LINER [Lin...
  • 英文版
    “Inductorless” 5V to + 5V Converter
    LINER
  • 英文版
    “Inductorless” 5V to + 5V Converter
    LINER [Lin...
  • 英文版
    Dual Micropower Chopper Stabilized Operational Amplifier wit...
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  • 英文版
    Dual Micropower Zero-Drift Operational Amplifier with Intern...
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