Datasheet > AS1500_1

AS1500_1

更新时间： 2024-11-19 06:37:43

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艾迈斯 - AMSCO		数字电位计
页数	文件大小	规格书
14页	315K
描述
Digital Potentiometer

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AS1500_1 数据手册

Data Sheet

AS1500/AS1501/AS1502/AS1503

Digital Potentiometer

1 General Description

2 Key Features

ꢀ

256 - Taps

The AS1500 is a digital potentiometer with 256

programmable steps. The values of the resistor can be

controlled via 3 wire serial interface capable to handle

programming rates up to 10MHz.

ꢀ

Available in four Resistance values

- AS1500 resistance 10kΩ

- AS1501 resistance 20kΩ

- AS1502 resistance 50kΩ

- AS1503 resistance 100kΩ

Standby current - Less than 1 µA

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.

ꢀ

3-Wire Serial Data Interface

10 MHz Update Data Loading Rate

2.7 V to 5.5 V Single-Supply Operation

Temperature Range –40º to +125º

8-pin SOIC Package

The AS150x is available in an 8-pin SOIC package. All

parts are guaranteed to operate over the extended

industrial temperature range of –40º to +125º.

3 Applications

The AS1500 is ideal for volume controls in TV sets and

audio systems, and applications that require line

impedance matching, programmable filters or power

supply adjustment. The AS1500 can also be designed in

as a replacement for mechanical potentiometers.

Figure 1. Application Diagram

VCC

8-Bit

SDI

CSN

10Bit

Serial

Latch

GND

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