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LTC1662IN8 Datasheet

  • LTC1662IN8

  • Ultralow Power, Dual 10-Bit DAC in MSOP

  • 12頁

  • LINER

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Final Electrical Specifications
LTC1662
Ultralow Power, Dual
10-Bit DAC in MSOP
March 2000
FEATURES
s
s
DESCRIPTIO
s
s
s
s
s
s
s
Ultralow Power: 1.5碌A(chǔ) (Typ) I
CC
per DAC Plus
0.05碌A(chǔ) Sleep Mode for Extended Battery Life
Tiny: Two 10-Bit DACs in an 8-Lead MSOP鈥?/div>
Half the Size of an SO-8
Wide 2.7V to 5.5V Supply Range
Double Buffered for Simultaneous DAC Updates
Rail-to-Rail Voltage Outputs Drive 1000pF
Reference Range Includes Supply for Ratiometric
0V-to-V
CC
Output
Reference Input Impedance Is Code-Independent
(7.1M鈩?Typ)鈥擡liminates External Buffers
3-Wire Serial Interface with
Schmitt Trigger Inputs
Differential Nonlinearity:
鹵0.75LSB
Max
The LTC
廬
1662 is an ultralow power, fully buffered volt-
age output, dual 10-bit digital-to-analog converter (DAC).
Each DAC draws just 1.7碌A(chǔ) (typ) total supply-plus-
reference operating current, yet is capable of supplying
DC output currents in excess of 1mA and reliably driving
capacitive loads of up to 1000pF. A programmable Sleep
mode further reduces total operating current to a negli-
gible 0.05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.
With its ultralow operating current and exceptionally
small size, the LTC1662 is ideal for use in battery-
powered products.
The LTC1662 is pin- and software-compatible with the
LTC1661 micropower dual 10-bit DAC. It is available in
8-pin MSOP and PDIP packages and is specified over the
industrial temperature range.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Mobile Communications
Portable Battery-Powered Instruments
Remote Industrial Devices
Digitally Controlled Amplifiers and Attenuators
Automatic Calibration for Manufacturing
BLOCK DIAGRA
V
OUT A
8
GND
7
V
CC
6
V
OUT B
5
TOTAL OPERATING CURRENT (碌A(chǔ))
LATCH
LATCH
LATCH
LATCH
10-BIT
DAC A
10-BIT
DAC B
CONTROL
LOGIC
ADDRESS
DECODER
SHIFT REGISTER
1
CS/LD
2
SCK
3
D
IN
4
REF
1662 BD
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.5
V
REF
= V
CC
T
A
= 25擄C
3.0
3.5
W
U
Total Supply-Plus-Reference
Operating Current
CODE = 1023
CODE = 512
CODE = 0
4.0
V
CC
(V)
4.5
5.0
5.5
1662 G01
1

LTC1662IN8 產(chǎn)品屬性

  • LTC1662

  • 50

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器

  • -

  • 400µs

  • 10

  • 串行

  • 2

  • 單電源

  • 260µW

  • -40°C ~ 85°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

  • 2 電壓，單極

  • *

LTC1662IN8相關(guān)型號PDF文件下載

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    DUAL MICROPOWER COMPARATOR
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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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    Dual Precision Intrumentation Switched-Capacitor Building Bl...
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    Switched Capacitor Voltage Converter
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    Switched Capacitor Voltage Converter
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  • 英文版
    Programmable Micropower Hex Translator/ Receiver/Driver
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  • 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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