MAX4175CAEUK+中文资料

19-1407; Rev 3; 8/99

GainAmps/Open-Loop Op Amps

SOT23, Rail-to-Rail, Fixed-GainGeneral Description

Features

The MAX4174/MAX4175/MAX4274/MAX4275 Gain-oGainAmp Family Provides Internal PrecisionAmp family combines a low-cost Rail-to-Rail®op ampGain-Setting Resistors in SOT23 (MAX4174/5)with precision internal gain-setting resistors and Vbiasing. Factory-trimmed on-chip resistors decreaseCC/ 2o0.1% Gain Accuracy (RF/RG) (MAX4174/5,design size, cost, and layout, and provide 0.1% gainMAX4274/5)accuracy. Fixed inverting gains from -0.25V/V to o54 Standard Gains Available (MAX4174/5,-100V/V or noninverting gains from +1.25V/V toMAX4274/5)+101V/V are available. These devices operate from asingle +2.5V to +5.5V supply and consume only 300µA.oOpen-Loop Unity-Gain-Stable Op AmpsGainAmp amplifiers are optimally compensated for(MAX4281/2/4)each gain version, achieving exceptional GBW prod-oRail-to-Rail Outputs Drive 1k Load

ucts up to 23MHz (AoInternal VCC / 2 Biasing (MAX4175/MAX4275)age fault protection withstands ±17V at either inputV= +25V/V to +101V/V). High-volt-without excessive current draw.

o+2.5V to +5.5V Single SupplyThree versions are available in this amplifier family: single/o300µA Supply Current dual/quad open-loop, unity-gain stable (MAX4281/oUp to 23MHz GBW Product

MAX4282/MAX4284); single/dual fixed gain (MAX4174/oFault-Protected Inputs Withstand ±17VMAX4274); and single/dual fixed gain plus internal VCC/ 2bias at the noninverting input (MAX4175/oStable with Capacitive Loads Up to 470pF with MAX4275), which simplifies input biasing in single-supplyNo Isolation Resistor

designs. The input common-mode voltage range of theopen-loop amplifiers extends from 150mV below thenegative supply to within 1.2V of the positive supply.The outputs can swing rail-to-rail and drive a 1k loadwhile maintaining excellent DC accuracy. The amplifieris stable for capacitive loads up to 470pF.

Applications

Ordering Information continued at end of data sheet.

Portable InstrumentsSmart-Card Readers

*Insert the desired gain code (from the Gain Selection Guide)Instruments, Terminals, Infrared Receivers forin the blank to complete the part number.

and Bar-Code ReadersRemote Controls

Refer to the Gain Selection Guide for a list of preferred gainsKeyless Entry

Low-Side Current-Senseand SOT Top Marks.Photodiode Preamps

Amplifiers

Selector Guide appears at end of data sheet.

Pin Configurations

Typical Operating Circuit

Patent pending

GainAmp is a trademark of Maxim Integrated Products. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

________________________________________________________________Maxim Integrated Products

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MAX4174/5, MAX4274/5, MAX4281/2/4

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