Datasheet > AS1501-T

AS1501-T

更新时间： 2024-11-23 04:06:43

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描述
Digital Potentiometer

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数据手册

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AS1501-T 数据手册

Data Sheet AS1500/1/2/3

Digital Potentiometer

AS1500/AS1501/AS1502/AS1503

DATASHEET

PRELIMINARY FACT SHEET

programming rates up to 10MHz. The AS1500 is available in

four different resistor values. The AS1500 incorporates a

10kΩ, the AS1501 a 20kΩ, the AS1502 a 50kΩ and the

AS1503 a 100kΩ fixed resistor. The wiper contact taps the

fixed resistor at points determined by the 8-bit digital code

word. The resistance between the wiper and the endpoint of

the resistor is linear. The switching action is performed in a

way that no glitches occur. Furthermore the AS150x product

family includes a shutdown mode, where it consumes less

than 1µA. The AS150x is available in an 8-pin SOIC

package. All parts are guaranteed to operate over the

extended industrial temperature range of –40°C to +125°C.

Key Features

256-Position

Available in four Resistance values

- AS1500 resistance 10kOhms

- AS1501 resistance 20kOhms

- AS1502 resistance 50kOhms

- AS1503 resistance 100kOhms

Power Shutdown —Less than 1 µA

3-Wire SPI-Compatible Serial Data Input

10 MHz Update Data Loading Rate

2.7 V to 5.5 V Single-Supply Operation

Temperature Range –40°C to +125°C

Package SO-8

Compatible to AD8400

Applications

Line Impedance Matching

General Description

Volume Control, Panning

The AS1500 is

digital potentiometer with 256

Mechanical Potentiometer Replacement

Power Supply Adjustment

programmable steps. The values of the resistor can be

controlled via 3 wire serial interface capable to handle

Programmable Filters, Delays, Time Constants

VDD

SDI

10 Bit

AS150x

Top View

8-Bit

GND

CSN

SDI

Serial

Latch

VDD

CSN

AS1500

GND

Figure 1

Pinout andfunctional Block Diagram of Digital Potentiometer AS150x family

Revision 1.0, Oct 2004

Page 1 of 8

12 3 4 5 6 7 8

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