AS1538-BTST

AS1538-BTST Datasheet

AS1538/AS1540

Part	Datasheet
AS1538-BTST	AS1538-BTST (pdf)

Related Parts	Information
AS1538-TS_EK_ST	AS1538-TS_EK_ST
AS1538-BTSU	AS1538-BTSU
AS1540-BQFT	AS1540-BQFT

PDF Datasheet Preview
AS1538/AS1540 8/4-Channel, 12-Bit Analog-to-Digital Converter Data Sheet 1 General Description The AS1538/AS1540 are single-supply, low-power, 12bit data acquisition devices featuring a serial interface and an 8-channel AS1538 or 4-channel AS1540 multiplexer. The analog-to-digital A/D converters features a sample-and-hold amplifier an internal asynchronous clock and an internal reference. The combination of an I2C serial, 2-wire interface and micropower consumption makes the AS1538 and AS1540 ideal for applications requiring the A/D converter to be close to the input source in remote locations and for applications requiring isolation. The device is available in a TSSOP-16 or TQFN 4x4 16pin package. 2 Key Features ! Single Supply to 5.25V ! 8-Channel Multiplexer AS1538 ! 4-Channel Multiplexer AS1540 ! Sampling Rate 50kSPS ! No Missing Codes ! Internal Reference 2.5V ! High Speed I2C Interface at 3.4MHz ! <1.5µA Full Shutdown Current ! TSSOP-16 or TQFN 4x4 16-pin Package 3 Applications The device is ideal for voltage-supply monitoring, isolated data acquisition, transducer interfaces, batteryoperated systems, remote data acquisition or any other analog-to-digital conversion application. Figure Block Diagram CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM REFIN/OUT 8-Channel MUX Sample/ Hold Amp Successive Approximation Register AS1538/AS1540 CDAC Comparator Serial Interface SDA SCL A0 A1 Buffer Internal 2.5V Reference AS1538 only 1 - 20 AS1538/AS1540 Data Sheet - Pinout 4 Pinout Pin Assignments Figure Pin Assignments Top View CH0 1 CH1 2 CH2 3 CH3 4 CH4 5 CH5 6 CH6 7 CH7 8 Data Sheet - Ordering Information 11 Ordering Information The device is available as the standard products shown in Table Table Ordering Information Model AS1538-BTST AS1538-BTSU Marking AS1538 Description 8-Channel, 12-Bit Analog-to-Digital Converter 8-Channel, 12-Bit Analog-to-Digital Converter AS1540-BQFT AS1540 4-Channel, 12-Bit Analog-to-Digital Converter Delivery Form Tape and Reel Tubes Tape and Reel Package TSSOP-16 TSSOP-16 TQFN 4x4 16-pin 19 - 20 AS1538/AS1540 Data Sheet 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, translated, 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. Disclaimer Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services. Contact Information Headquarters austriamicrosystems AG A-8141 Schloss Premstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 20 - 20

PDF Datasheet Preview

AS1538/AS1540
8/4-Channel, 12-Bit Analog-to-Digital Converter

Data Sheet
1 General Description

The AS1538/AS1540 are single-supply, low-power, 12bit data acquisition devices featuring a serial interface and an 8-channel AS1538 or 4-channel AS1540 multiplexer.

The analog-to-digital A/D converters features a sample-and-hold amplifier an internal asynchronous clock and an internal reference.

The combination of an I2C serial, 2-wire interface and micropower consumption makes the AS1538 and AS1540 ideal for applications requiring the A/D converter to be close to the input source in remote locations and for applications requiring isolation.

The device is available in a TSSOP-16 or TQFN 4x4 16pin package.
2 Key Features
! Single Supply to 5.25V
! 8-Channel Multiplexer AS1538
! 4-Channel Multiplexer AS1540
! Sampling Rate 50kSPS
! No Missing Codes
! Internal Reference 2.5V ! High Speed I2C Interface at 3.4MHz
! <1.5µA Full Shutdown Current
! TSSOP-16 or TQFN 4x4 16-pin Package
3 Applications

The device is ideal for voltage-supply monitoring, isolated data acquisition, transducer interfaces, batteryoperated systems, remote data acquisition or any other analog-to-digital conversion application.

Figure Block Diagram

CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 COM

REFIN/OUT
8-Channel MUX

Sample/ Hold Amp

Successive Approximation Register

AS1538/AS1540

CDAC

Comparator

Serial Interface

SDA SCL A0 A1

Buffer

Internal 2.5V

Reference

AS1538 only
1 - 20

AS1538/AS1540

Data Sheet - Pinout
4 Pinout

Pin Assignments

Figure Pin Assignments Top View

CH0 1 CH1 2 CH2 3 CH3 4 CH4 5 CH5 6 CH6 7 CH7 8
Data Sheet - Ordering Information
11 Ordering Information

The device is available as the standard products shown in Table
Table Ordering Information

Model AS1538-BTST AS1538-BTSU

Marking AS1538

Description 8-Channel, 12-Bit Analog-to-Digital Converter 8-Channel, 12-Bit Analog-to-Digital Converter

AS1540-BQFT AS1540 4-Channel, 12-Bit Analog-to-Digital Converter

Delivery Form Tape and Reel

Tubes

Tape and Reel

Package

TSSOP-16

TSSOP-16

TQFN 4x4 16-pin
19 - 20

AS1538/AS1540

Data Sheet

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, translated, 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.

Disclaimer

Devices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austriamicrosystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or lifesustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.

Contact Information

Headquarters austriamicrosystems AG A-8141 Schloss Premstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
20 - 20

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AS1538-BTST Datasheet file may be downloaded here without warranties.

Datasheet ID: AS1538-BTST 519644