19-1526; Rev 1; 10/99
Micropower, SOT23, Rail-to-Rail,
Fixed-Gain, GainAmp/Open-Loop Op Amps
The MAX4074–MAX4078 GainAmp™ op amp family
combines low-cost Rail-to-Rail® op amps with precision
internal gain-setting resistors. Factory-trimmed on-chip
resistors decrease design size, cost, and layout, and
provide 0.1% gain accuracy. Fixed inverting gains from
-0.25V/V to -100V/V or noninverting gains from +1.25V/V
to +101V/V are available. These devices operate from a
single +2.5V to +5.5V supply and consume just 34µA.
GainAmp amplifiers are optimally compensated for each
gain version, achieving gain bandwidth (GBW) products
up to 4MHz (AV = +25V/V to +101V/V). High-voltage
fault protection withstands ±17V at either input without
damage or excessive current draw (MAX4074/MAX4075
Two versions are available in this amplifier family. The
MAX4076/MAX4077/MAX4078 are single/dual/quad
open-loop, unity-gain-stable op amps, and the
MAX4074/MAX4075 are single/dual fixed-gain op
amps. The input common-mode voltage range of the
open-loop amplifiers extends from 150mV below the
negative supply to within 1.2V of the positive supply.
The GainAmp outputs can swing rail-to-rail and drive a
1kΩ load while maintaining excellent DC accuracy
(MAX4074/MAX4075 only). The amplifiers are stable for
capacitive loads up to 100pF.
For space-critical applications, the MAX4074/MAX4076
are available in space-saving SOT23-5 packages.
Portable Battery-Powered Equipment
Instruments, Terminals, and Bar-Code Readers
Infrared Receivers for Remote Controls
Low-Side Current-Sense Amplifiers
Gain Selector Guide appears at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
GainAmp is a trademark of Maxim Integrated Products.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
o Internal Gain-Setting Resistors in SOT23
o 0.1% Gain Accuracy (RF/RG) (MAX4074/75)
o 54 Standard Gains Available (MAX4074/75)
o Open-Loop, Unity-Gain-Stable Op Amps
o Rail-to-Rail Outputs Drive 1kΩ Load (MAX4074/75)
o +2.5V to +5.5V Single Supply
o 34µA Supply Current (MAX4074/75)
o Up to 4MHz GBW Product
o Fault-Protected Inputs Withstand ±17V
o 200pA max Input Bias Current (MAX4076/77/78)
o Stable with Capacitive Loads up to 100pF
with No Isolation Resistor
MAX4074__EUK-T -40°C to +70°C 5 SOT23-5
MAX4074__ESA -40°C to +70°C 8 SO
Ordering Information continued at end of data sheet.
Note: Insert the desired gain code in the blank to complete the
part number (see the Gain Selector Guide).
**See the Gain Selector Guide for a list of preferred gains and
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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For small orders, phone 1-800-835-8769.