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MAX951EPA Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX951EPA Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 12 page _______________General Description The MAX951–MAX954 feature combinations of a micropower operational amplifier, comparator, and ref- erence in an 8-pin package. In the MAX951 and MAX952, the comparator’s inverting input is connected to an internal 1.2V ±2% bandgap reference. The MAX953 and MAX954 are offered without an internal reference. The MAX951/MAX952 operate from a single +2.7V to +7V supply with a typical supply current of 7µA, while the MAX953/MAX954 operate from +2.4V to +7V with a 5µA typical supply current. Both the op amp and comparator feature a common-mode input voltage range that extends from the negative supply rail to with- in 1.6V of the positive rail, as well as output stages that swing rail to rail. The op amps in the MAX951/MAX953 are internally compensated to be unity-gain stable, while the op amps in the MAX952/MAX954 feature 125kHz typical bandwidth, 66V/ms slew rate, and stability for gains of 10V/V or greater. These op amps have a unique output stage that enables them to operate with an ultra-low supply current while maintaining linearity under loaded conditions. In addition, they have been designed to exhibit good DC characteristics over their entire operat- ing temperature range, minimizing input referred errors. The comparator output stage of these devices continu- ously sources as much as 40mA. The comparators eliminate power-supply glitches that commonly occur when changing logic states, minimizing parasitic feed- back and making the devices easier to use. In addition, they contain ±3mV internal hysteresis to ensure clean output switching, even with slow-moving input signals. ____________________________Features o Op Amp + Comparator + Reference in an 8-Pin µMAX Package (MAX951/MAX952) o 7µA Typical Supply Current (Op Amp + Comparator + Reference) o Comparator and Op-Amp Input Range Includes Ground o Outputs Swing Rail to Rail o +2.4V to +7V Supply Voltage Range o Unity-Gain Stable and 125kHz Decompensated AV ≥ 10V/V Op-Amp Options o Internal 1.2V ±2% Bandgap Reference o Internal Comparator Hysteresis o Op Amp Capable of Driving up to 1000pF Load ________________________Applications Instruments, Terminals, and Bar-Code Readers Battery-Powered Systems Automotive Keyless Entry Low-Frequency, Local-Area Alarms/Detectors Photodiode Preamps Smart Cards Infrared Receivers for Remote Controls Smoke Detectors and Safety Sensors Ultra-Low-Power, Single-Supply Op Amp + Comparator + Reference ________________________________________________________________ Maxim Integrated Products 1 TOP VIEW ( ) ARE FOR MAX953/MAX954 1 2 3 4 8 7 6 5 VDD COMPOUT REF (COMPIN-) COMPIN+ VSS AMPIN+ AMPIN- AMPOUT MAX951 MAX952 MAX953 MAX954 DIP/SO/µMAX __________________Pin Configuration 19-0431; Rev 1; 7/97 Typical Operating Circuit and Ordering Information appear at end of data sheet. PART INTERNAL 2% PRECISION REFERENCE OP-AMP GAIN STABILITY (V/V) COMPARATOR SUPPLY CURRENT (µA) MAX951 Yes 1 Yes 7 MAX952 Yes 10 Yes 7 MAX953 No 1 Yes 5 MAX954 No 10 Yes 5 ____________________Selection Table For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468. |
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