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X9250US24I Datasheet

  • X9250US24I

  • Low Noise/Low Power/SPI Bus/256 Taps

  • 20頁(yè)

  • INTERSIL   INTERSIL

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廬
X9250
Low Noise/Low Power/SPI Bus/256 Taps
Data Sheet
March 25, 2005
FN8165.1
Quad Digitally Controlled Potentiometers
(XDCP鈩?
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Four potentiometers in one package
256 resistor taps/pot - 0.4% resolution
SPI serial interface
Wiper resistance, 40鈩?typical @ V
CC
= 5V
Four nonvolatile data registers for each pot
Nonvolatile storage of wiper position
Standby current < 5碌A(chǔ) max (total package)
Power supplies
鈥擵
CC
= 2.7V to 5.5V
鈥擵+ = 2.7V to 5.5V
鈥擵鈥?= -2.7V to -5.5V
100k鈩? 50k鈩?total pot resistance
High reliability
鈥擡ndurance 鈥?100,000 data changes per bit per
register
鈥擱egister data retention - 100 years
24-lead SOIC, 24-lead TSSOP
Dual supply version of X9251
DESCRIPTION
The X9250 integrates 4 digitally controlled
potentiometers (XDCP) on a monolithic CMOS
integrated circuit.
The digitally controlled potentiometer is implemented
using 255 resistive elements in a series array.
Between each element are tap points connected to the
wiper terminal through switches. The position of the
wiper on the array is controlled by the user through the
SPI bus interface. Each potentiometer has associated
with it a volatile Wiper Counter Register (WCR) and 4
nonvolatile Data Registers (DR0:DR3) that can be
directly written to and read by the user. The contents
of the WCR controls the position of the wiper on the
resistor array though the switches. Power up recalls
the contents of DR0 to the WCR.
The XDCP can be used as a three-terminal
potentiometer or as a two-terminal variable resistor in
a wide variety of applications including control,
parameter adjustments, and signal processing.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
BLOCK DIAGRAM
V
CC
V
SS
V+
V-
R
0
R
1
Wiper
Counter
Register
(WCR)
Pot 0
V
H0
/R
H0
R
0
R
1
Wiper
Counter
Register
(WCR)
V
H2
/R
H2
HOLD
CS
SCK
SO
SI
A0
A1
WP
R
2
R
3
V
L0
/R
L0
V
W0
/R
W0
R
2
R
3
Resistor
Array
Pot 2
V
L2
/R
L2
V
W2
/R
W2
Interface
and
Control
Circuitry
Data
8
V
W1
/R
W1
R
0
R
1
Wiper
Counter
Register
(WCR)
V
H1
/R
H1
R
0
R
1
Wiper
Counter
Register
(WCR)
V
W3
/R
W3
V
H3
/R
H3
R
2
R
3
Resistor
Array
Pot1
V
L1
/R
L1
R
2
R
3
Resistor
Array
Pot 3
V
L3
/R
H3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

X9250US24I 產(chǎn)品屬性

  • 30

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 數(shù)字電位器

  • XDCP™

  • 256

  • 50k

  • 4

  • 標(biāo)準(zhǔn)值 ±300 ppm/°C

  • 非易失

  • 6 線 SPI（芯片選擇，設(shè)備位址）

  • 4.5 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 24-SOIC（0.295"，7.50mm 寬）

  • 24-SOIC

  • 管件

X9250US24I相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
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  • 英文版
    Low Noise/Low Power/SPI Bus/256 Taps
    INTERSIL
  • 英文版
    Quad Digitally Controlled Potentiometers (XDCP)
    XICOR
  • 英文版
    Low Noise/Low Power/SPI Bus/256 Taps
    INTERSIL [...
  • 英文版
    Quad Digitally Controlled Potentiometers (XDCP)
    XICOR [Xic...
  • 英文版
    Single Supply/Low Power/256-Tap/SPI Bus
    INTERSIL
  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometer
    XICOR
  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometer
    XICOR [Xic...
  • 英文版
    Single Supply/Low Power/256-Tap/SPI Bus
    INTERSIL [...
  • 英文版
    Low Power + Quad 256-Tap + 2-Wire Bus + Up/Down Interface
    INTERSIL
  • 英文版
    Quad Digitally-Controlled (XDCP) potentiometer
    XICOR
  • 英文版
    Low Power + Quad 256-Tap + 2-Wire Bus + Up/Down Interface
    INTERSIL [...
  • 英文版
    Quad Digitally-Controlled (XDCP) potentiometer
    XICOR [Xic...
  • 英文版
    Low Noise/Low Power/2-Wire Bus/256 Taps
    INTERSIL
  • 英文版
    Quad Digital Controlled Potentiometers (XDCP)
    XICOR
  • 英文版
    Low Noise/Low Power/2-Wire Bus/256 Taps
    INTERSIL [...
  • 英文版
    Quad Digital Controlled Potentiometers (XDCP)
    XICOR [Xic...
  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometers
    XICOR
  • 英文版
    Single Supply/Low Power/256-Tap/2-Wire bus
    INTERSIL
  • 英文版
    Quad Digitally Controlled Potentiometers
    INTERSIL [...
  • 英文版
    Quad Digitally-Controlled (XDCP⑩) Potentiometer
    INTERSIL [...

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