General Description
The MAX4400–MAX4403 low-cost, general-purpose op
amps offer rail-to-rail outputs, draw only 320µA of quies-
cent current, and operate from a single +2.5V to +5.5V
supply. For additional power conservation, the MAX4401
offers a low-power shutdown mode that reduces supply
current to 1µA (max) and puts the amplifier’s output in
a high-impedance state. These devices deliver ±1.4mA
of output current and are unity-gain stable with a 1MHz
gain-bandwidth product driving capacitive loads up to
400pF. The MAX4400–MAX4403 are specified to +125°C,
making them suitable for use in a variety of harsh environ-
ments, such as automotive applications.
The MAX4400 single amplifier is available in ultra-small
5-pin SC70 and space-saving 5-pin SOT23 packages.
The single MAX4401 includes the shutdown feature and
is available in a 6-pin SC70. The MAX4402 is a dual
amplifier available in 8-pin SOT23, µMAX®, and SO
packages. The MAX4403 quad amplifier is packaged in a
14-pin TSSOP or SO.
Applications
●Single-Supply, Zero-Crossing Detectors
●Instruments and Terminals
●Portable Communications
●Electronic Ignition Modules
●Infrared Receivers
●Sensor Signal Detection
Features
●Single +2.5V to +5.5V Supply Voltage Range
●320µA Quiescent Current per Amplifier
●1µA (max) Shutdown Mode (MAX4401)
●Available in Space-Saving Packages
5-Pin SC70 (MAX4400)
6-Pin SC70 (MAX4401)
8-Pin SOT23/µMAX (MAX4402)
●110dB AVOL with 2kΩ Load
●0.015% THD with 2kΩ Load
●Rail-to-Rail Output Voltage Swing
●1.4mA of Sink and Source Load Current
●Unity-Gain Stable up to CLOAD = 400pF
●Ground-Sensing Inputs
Pin Configurations continued at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
T = Tape and reel.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
PART TEMP RANGE PIN-
PACKAGE
TOP
MARK
MAX4400AXK+T -40°C to +125°C 5 SC70 AAG
MAX4400AUK+T -40°C to +125°C 5 SOT23 ADNP
MAX4401AXT+T -40°C to +125°C 6 SC70 AAB
MAX4402AKA+T -40°C to +125°C 8 SOT23 AADI
MAX4402AKA/V+T -40°C to +125°C 8 SOT23 AETR
MAX4402AUA+ -40°C to +125°C 8 µMAX —
MAX4402AUA/V+T -40°C to +125°C 8 µMAX —
MAX4402ASA+ -40°C to +125°C 8 SO —
MAX4403AUD+ -40°C to +125°C 14 TSSOP —
MAX4403ASD+ -40°C to +125°C 14 SO —
PART NO. OF AMPLIFIERS
PER PACKAGE
SHUTDOWN
MODE
MAX4400 1 No
MAX4401 1 Yes
MAX4402 2 No
MAX4403 4 No
IN+
IN-
1
2
3
5
4OUT
VSS
VDD IN+
IN-
1
+ +
2
3
6
5
4OUT
SHDN
VSS
VDD
MAX4400 MAX4401
SC70-5/SOT23-5 SC70-6
MAX4400–MAX4403 Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
19-1599; Rev 5; 6/14
Pin Congurations
Ordering Information
Selector Guide