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| a u s t ri a m i c r o s y s t e m s AS1970 - AS1975 L o w - Vo l ta g e S i n g l e / D u a l / Q u a d C o m pa r a t o r s Product Brief 1 General Description The AS1970 - AS1975 are single/dual/quad comparators that operate with supplies from 2.5 to 3.6V making them perfect for all 3 volt applications. The comparators can also operate with dual supplies (1.25 to 1.8V), and require very little supply current (8.5A) with minimal propagation delay (300ns). Low input bias current (1.0pA, typ), low input offset voltage (0.5mV, typ), and internal hysteresis (3mV) make these comparators ideal for low-power single-cell applications including power-management and power-monitoring systems. The comparators are available as the standard products listed in Table 1. Table 1. Standard Products Model AS1970/AS1972/AS1974 AS1971/AS1973/AS1975 Output Type Push/Pull Open-Drain 2 Key Features ! CMOS Push/Pull Output Sinks and Sources 8mA (AS1970/AS1972/AS1974) CMOS Open-Drain Output Voltage Extends Beyond VCC (AS1971/AS1973/AS1975) Quiescent Supply Current: 8.5A per Comparator Internal Hysteresis: 3mV Single-Supply Operation: 2.5 to 3.6V Common-Mode Input Voltage Range Extends 250mV Above the Rails Low Propagation Delay: 300ns Minimized Overall Power Consumption Supply Current @1MHz Switching Frequency: 80A No Phase Reversal for Overdriven Inputs Package Types: - 5-pin SOT23 - AS1970/AS1971 - 8-pin MSOP - AS1972/AS1973 - 14-pin TSSOP - AS1974/AS1975 ! ! ! ! ! ! ! ! ! ! The AS1970/AS1972/AS1974 push/pull output can sink or source current. The AS1971/AS1973/AS1975 open-drain output can be pulled beyond VCC to a maximum of 3.6V > VEE. These open-drain versions are ideal for logic-level translators or bipolar-to-unipolar converters. Large internal output drivers allow Rail-to-Rail output swings with loads of up to 8mA. The AS1970/AS1971 are available in a 5-pin SOT23 package. The AS1972/AS1973 are available in a 8-pin MSOP package. The AS1974/AS1975 are available in a 14-pin TSSOP package. Figure 1. Block Diagrams 3 Applications The devices are ideal for battery-powered systems, mobile communication devices, zero-crossing detectors, window comparators, threshold detectors/discriminators, ground/supply-sensing applications, IR receivers or any other space-limited application with low power-consumption requirements. INA+ INA+ IN+ IN+ - OUT INA+ - OUTA INAINB+ INBINB+ INBVCC + - OUTB INC+ INCIND+ VEE INDVCC + - + - + - + - OUTD VEE OUTC OUTB OUTA VCC VEE AS1970/AS1971 AS1972/AS1973 AS1974/AS1975 www.austriamicrosystems.com Revision 0.1 1-2 AS1970 - AS1975 Product Brief austriam i c r o systems Copyrights Copyright (c) 1997-2006, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered (R). 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 e-mail: info@austriamicrosystems.com For Sales Offices, Distributors and Representatives, please visit: http://www.austriamicrosystems.com austriamicrosystems www.austriamicrosystems.com Revision 0.1 - a leap ahead 2-2 |
Price & Availability of AS1973
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