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CAT5270

更新时间： 2024-11-30 06:46:15

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
10页	158K
描述
Dual Digitally Programmable Potentiometers (DPP) with 256 Taps & I2C Compatible Interface

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CAT5270

Dual Digitally Programmable

Potentiometers (DPPt) with

256 Taps & I²C Compatible

Interface

http://onsemi.com

Description

The CAT5270 is a volatile 256−tap by two channels, digitally

programmable potentiometer (DPPt) with an I C compatible

interface. Each DPP consists of a linear taper series of resistive

elements connected between two externally accessible end points. The

tap points between each resistive element are connected to the wiper

outputs with CMOS switches. On power up the wiper position goes to

mid scale.

TSSOP−14

Y SUFFIX

The CAT5270 can be used as a potentiometer or as a two terminal,

variable resistor. It is available in a 14−lead TSSOP package operating

over the industrial temperature range (−40°C to 85°C).

CASE 948AM

PIN CONNECTION

Features

• Two Linear Taper Digitally Programmable Potentiometers

• 256 Resistor Taps per Potentiometer

• End to End Resistance 50 kW, 100 kW

SCL

GND

• I C Compatible Interface

• Low Wiper Resistance 75 W (typ.)

• 2.5 V to 5.5 V Operation

SDA

• Standby Current Less than 1 mA

• Power On to Mid Scale

TSSOP−14 (Y)

(Top View)

• 14−lead TSSOP Package

• Industrial Temperature Range

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 10 of this data sheet.

I C

256−POSITION

DECODE

CONTROL

SDA

SCL

COMPATIBLE

INTERFACE

CONTROL

LOGIC

Figure 1. Functional Diagram

Semiconductor Components Industries, LLC, 2009

Publication Order Number:

October, 2009 − Rev. 3

CAT5270/D

12 3 4 5 6 7...10

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