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LTC1661I Datasheet

  • LTC1661I

  • Linear Technology [Micropower Dual 10-Bit DAC in MSOP]

  • LINER

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LTC1661
Micropower Dual
10-Bit DAC in MSOP
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
Tiny: Two 10-Bit DACs in an 8-Lead MSOP鈥?/div>
Half the Board Space of an SO-8
Micropower: 60碌A(chǔ) per DAC
Sleep Mode: 1碌A(chǔ) for Extended Battery Life
Rail-to-Rail Voltage Outputs Drive 1000pF
Wide 2.7V to 5.5V Supply Range
Double Buffered for Independent or Simultaneous
DAC Updates
Reference Range Includes Supply for Ratiometric
0V-to-V
CC
Output
Reference Input Has Constant Impedance over All
Codes (260k鈩?Typ)鈥擡liminates External Buffers
3-Wire Serial Interface with
Schmitt Trigger Inputs
Differential Nonlinearity:
鈮?鹵0.75LSB
Max
The LTC
廬
1661 integrates two accurate, serially addres-
sable, 10-bit digital-to-analog converters (DACs) in a
single tiny MS8 package. Each buffered DAC draws just
60碌A(chǔ) total supply current, yet is capable of supplying DC
output currents in excess of 5mA and reliably driving
capacitive loads up to 1000pF. Sleep mode further re-
duces total supply current to a negligible 1碌A(chǔ).
Linear Technology鈥檚 proprietary, inherently monotonic
voltage interpolation architecture provides excellent lin-
earity while allowing for an exceptionally small external
form factor. The double-buffered input logic provides
simultaneous update capability and can be used to write to
either DAC without interrupting Sleep mode.
Ultralow supply current, power-saving Sleep mode and
extremely compact size make the LTC1661 ideal for
battery-powered applications, while its straightforward
usability, high performance and wide supply range make
it an excellent choice as a general purpose converter.
For additional outputs and even greater board density,
please refer to the LTC1660 micropower octal DAC for
10-bit applications. For 8-bit applications, please consult
the LTC1665 micropower octal DAC.
APPLICATIO S
s
s
s
s
s
Mobile Communications
Digitally Controlled Amplifiers and Attenuators
Portable Battery-Powered Instruments
Automatic Calibration for Manufacturing
Remote Industrial Devices
, LTC and LT are registered trademarks of Linear Technology Corporation.
BLOCK DIAGRA
V
OUT A
8
GND
7
V
CC
6
V
OUT B
5
LATCH
LATCH
LATCH
LATCH
10-BIT
DAC A
10-BIT
DAC B
LSB
CONTROL
LOGIC
ADDRESS
DECODER
SHIFT REGISTER
1
CS/LD
2
SCK
3
D
IN
4
REF
1661 BD
U
Differential Nonlinearity (DNL)
0.75
0.60
0.40
0.20
0
鈥?.20
鈥?.40
鈥?.60
鈥?.75
0
256
512
CODE
768
1023
1661 G02
W
U
1

LTC1661I相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
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  • 英文版
    Dual Micropower Comparator
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  • 英文版
    DUAL MICROPOWER COMPARATOR
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    Dual Micropower Comparator
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  • 英文版
    BANG-BANG Controller
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    BANG-BANG Controller
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  • 英文版
    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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  • 英文版
    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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