Datasheet > X9438

X9438

更新时间： 2024-02-21 22:23:20

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电位器运算放大器
页数	文件大小	规格书
18页	279K
描述
Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier

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X9438 数据手册

X9438

Programmable Analog

Data Sheet

March 11, 2005

FN8199.0

PRELIMINARY

DESCRIPTION

Dual Digitally Controlled Potentiometer

(XDCP™) with Operational Amplifier

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.

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

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.

—Rail-to-rail CMOS performance

—1MHz gain bandwidth product

• Digitally controlled potentiometers

—Dual 64 tap potentiometers

—R

= 10kΩ

total

—2-wire serial interface

—V = 2.7V to 5.5V

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_CC

R_W0R_H0R_L0

V+

V_NI0

Control and

Memory

–

V_OUT0

SCL

SDA

WCR0

V_INV0

V_NI1

–

V_OUT1

WCR1

V_INV1

R_W1R_L1R_H1

V_SS

V-

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.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...18

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与X9438相关器件

型号	品牌	获取价格	描述	数据表
X9438WP24	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WP24	RENESAS	获取价格	DUAL DIGITAL POTENTIOMETER, PDIP24, PLASTIC, DIP-24
X9438WP24-2.7	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WP24-2.7	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDIP24, PLASTIC, DIP-24
X9438WP24I	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WP24I	RENESAS	获取价格	DUAL 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDIP24, PLA
X9438WP24I-2.7	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WS24	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WS24	RENESAS	获取价格	DUAL 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO24, PLA
X9438WS24-2.7	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier

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