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參數資料
| 型號： | X9438 |
| 廠商： | Intersil Corporation |
| 元件分類： | 數字電位計 |
| 英文描述： | Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier |
| 中文描述： | 雙數字電位器（數字電位器）的運算放大器 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 280K |
| 代理商： | X9438 |
1
FN8199.0
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.
PRELIMINARY
X9438
Programmable Analog
Dual Digitally Controlled Potentiometer
(XDCP) with Operational Amplifier
FEATURES
Two CMOS voltage operational amplifiers
Two digitally controlled potentiometers
Can be combined or used separately
Amplifiers:
—Low voltage operation
—V+/V- = ±2.7V to ±5.5V
—Rail-to-rail CMOS performance
—1MHz gain bandwidth product
Digitally controlled potentiometers
—Dual 64 tap potentiometers
—R
total
= 10k
—2-wire serial interface
—V
CC
= 2.7V to 5.5V
DESCRIPTION
The X9438 is a monolithic CMOS IC that incorporates
two operational amplifiers and two nonvolatile digitally
controlled potentiometers. The amplifiers are CMOS
differential input voltage operational amplifiers with
near rail-to-rail outputs. All pins for the two amplifiers
are brought out of the package to allow combining
them with the potentiometers, or using them as com-
plete stand-alone amplifiers.
The digitally controlled potentiometers consist of a
series string of 63 polycrystalline resistors that behave
as standard integrated circuit resistors. The two-wire
serial port, common to both pots, allows the user to
program the connection of the wiper output to any of
the resistor nodes in the series string. The wiper posi-
tion is saved in the on board E2 memory to allow for
nonvolatile restoration of the wiper position.
A wide variety of applications can be implemented
using the potentiometers and the amplifiers. A typical
application is to implement the amplifier as a wiper
buffer in circuits that use the potentiometer as a voltage
reference. The potentiometer can also be combined
with the amplifier yielding a digitally programmable gain
amplifier or programmable current source.
BLOCK DIAGRAM
V
OUT1
Control and
Memory
SCL
SDA
A3
A2
A1
A0
WP
+
–
V
CC
V
NI0
V+
V-
R
W0
V
SS
V
OUT0
+
–
V
NI1
V
INV1
V
INV0
R
H0
R
L0
R
W1
R
L1
R
H1
WCR1
WCR0
Data Sheet
March 11, 2005
NOT RECOMMENDED FOR NEW DESIGNS
contact our Technical Support Center at
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相關代理商/技術參數 |
參數描述 |
|---|---|
| X9438WP24 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier |
| X9438WP24-2.7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier |
| X9438WP24I | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier |
| X9438WP24I-2.7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier |
| X9438WS24 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier |
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