AS1506-10 AMSCO [austriamicrosystems AG], AS1506-10 Datasheet

AS1506-10

Manufacturer Part Number

AS1506-10

Description

256-Tap Digital Potentiometer with SPI Interface and High Endurance EEPROM

Manufacturer

AMSCO [austriamicrosystems AG]

Datasheet

1.AS1506-10.pdf (2 pages)

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A S 1 5 0 6

2 5 6 - Ta p D i g i ta l P o t e n t i o m e t e r w i t h S P I I n t e r f a c e a n d

H i g h E n d u r a n c e E E P R O M

1 General Description

The AS1506 is a linear, 256-tap digital potentiometer

specifically designed to replace discrete/mechanical

potentiometers and is ideal for applications requiring a

low-temperature-coefficient variable resistor, such as

low-drift, programmable gain, and amplifier circuit con-

figurations.

The device is controlled via a 3-wire SPI-compatible

interface and features an internal EEPROM for storing

wiper positions.

Several device variants are available differentiated by

end-to-end resistance as shown in

Table 1. Standard Products

The 3-wire SPI-compatible serial interface allows com-

munication at data rates up to 5MHz.The internal

EEPROM stores the last wiper position for initialization

during power-up and a low-power standby mode.

The devices are available in an 8-pin TDFN 3x3mm

package.

Figure 1. Block Diagram

www.austriamicrosystems.com

AS1506-100

AS1506-10

AS1506-50

Model

SCLK

SDIO

CSN

End-to-End Resistance (kΩ)

Shift Register

Interface

SPI

8-Bit

Table

100

Power-

Reset

EEPROM

Latch

8-Bit

Revision 1.01

2 Key Features

3 Applications

The device is ideal for mechanical potentiometer

replacement, low-drift programmable gain amplifiers,

audio volume control, LCD contrast control, and low-drift

programmable filters.

High Endurance: EEPROM up to 10M cycles

High Reliability: EEPROM up to 150 years data

retension @ 85°C

Wiper Position Retained in EEPROM and loaded at

Power-Up

256 Tap Positions

±0.5LSB DNL in Voltage Divider Mode

±0.5LSB INL in Voltage Divider Mode

End-to-End Resistance: 10/50/100kΩ

Low End-to-End Resistance Temperature

Coefficient: 90ppm/ºC

Low-Power Standby Mode: 100nA

5MHz SPI-Compatible Serial Interface

Single-Supply Operation: +2.7 to +5.5V

8-pin TDFN 3x3mm Package

256-Position

AS1506

Decoder

256

HIGH

WIPER

LOW

GND

P r o d u c t B r i e f

1 - 2

Related parts for AS1506-10

AS1506-10 Summary of contents

Page 1

... Model End-to-End Resistance (kΩ) AS1506-10 10 AS1506-50 50 AS1506-100 100 The 3-wire SPI-compatible serial interface allows com- munication at data rates up to 5MHz.The internal EEPROM stores the last wiper position for initialization during power-up and a low-power standby mode. The devices are available in an 8-pin TDFN 3x3mm package ...

Page 2

... AS1506 Product Brief Copyrights Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans- lated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. ...

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