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MAX4400AUK+TMAXN/a6000avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4400AXK+T |MAX4400AXKTMAXIMN/a10502avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4401AXTMAXN/a9000avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4401AXT+T |MAX4401AXTTMAXN/a5509avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4402AKAMAXN/a300avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4402AKA+TMAXIMN/a660avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4402ASA+MAXIMN/a3000avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4402ASA+T |MAX4402ASATMAXIM N/a2800avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4403ASD+ |MAX4403ASDMAXIMN/a9avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4403ASD+TMAXN/a2500avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4403AUD+ |MAX4403AUDMAXIMN/a100avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4403AUD+ |MAX4403AUDMAXN/a1916avaiSingle/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown


MAX4400AXK+T ,Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with ShutdownElectrical Characteristics (continued)(V = +5V, V = 0V, V = 0V, V = V /2, R = ∞ connected to V /2, ..
MAX4400AXK-T ,Single/Dual/Quad / Low-Cost / Single-Supply / Rail-to-Rail Op Amps with ShutdownELECTRICAL CHARACTERISTICS(V = +5V, V = 0, V = 0, V = V /2, R = ∞ connected to V /2, SHDN = V (MAX4 ..
MAX4400AXK-T ,Single/Dual/Quad / Low-Cost / Single-Supply / Rail-to-Rail Op Amps with ShutdownApplications*Future product—contact factory for availability.Single-Supply Zero-Crossing DetectorsI ..
MAX4401AXT ,Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with ShutdownElectrical Characteristics(V = +5V, V = 0V, V = 0V, V = V /2, R = ∞ connected to V /2, SHDN = V (MA ..
MAX4401AXT+T ,Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with ShutdownFeaturesThe MAX4400–MAX4403 low-cost, general-purpose op ● Single +2.5V to +5.5V Supply Voltage Ran ..
MAX4401AXT-T ,Single/Dual/Quad / Low-Cost / Single-Supply / Rail-to-Rail Op Amps with ShutdownFeaturesThe MAX4400–MAX4403 low-cost, general-purpose op Single +2.5V to +5.5V Supply Voltage Rang ..
MAX822RUS+T ,4-Pin, µP Voltage Monitors with Pin-Selectable Power-On Reset Timeout DelayMAX821/MAX82219-1122; Rev 3; 12/054-Pin µP Voltage Monitors with Pin-SelectablePower-On Reset Timeo ..
MAX822RUS-T ,4-Pin P Voltage Monitors with Pin-Selectable Power-On Reset Timeout DelayFeaturesThe MAX821/MAX822 microprocessor (µP) supervisory

MAX4400AUK+T-MAX4400AXK+T-MAX4401AXT-MAX4401AXT+T-MAX4402AKA-MAX4402AKA+T-MAX4402ASA+-MAX4402ASA+T-MAX4403ASD+-MAX4403ASD+T-MAX4403AUD+
Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
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.
PARTTEMP RANGEPIN-
PACKAGE
TOP
MARK
MAX4400AXK+T
-40°C to +125°C5 SC70AAG
MAX4400AUK+T-40°C to +125°C5 SOT23ADNP
MAX4401AXT+T
-40°C to +125°C6 SC70AAB
MAX4402AKA+T
-40°C to +125°C8 SOT23AADI
MAX4402AKA/V+T
-40°C to +125°C8 SOT23AETR
MAX4402AUA+-40°C to +125°C8 µMAX—
MAX4402AUA/V+T-40°C to +125°C8 µMAX—
MAX4402ASA+-40°C to +125°C8 SO—
MAX4403AUD+
-40°C to +125°C14 TSSOP—
MAX4403ASD+-40°C to +125°C14 SO—
PARTNO. OF AMPLIFIERS
PER PACKAGE
SHUTDOWN
MODE

MAX44001No
MAX44011Yes
MAX44022No
MAX44034No
IN+
IN-OUT
VSS
VDDIN+
IN-+OUT
SHDNVSS
VDD
MAX4400MAX4401
SC70-5/SOT23-5SC70-6
MAX4400–MAX4403Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Pin Conigurations
Ordering Information
Selector Guide
Power-Supply Voltage (VDD to VSS) .......................-0.3V to +6V
All Other Pins ................................(VSS - 0.3V) to (VDD + 0.3V)
Output Short-Circuit Duration OUT Shorted to VSS or VDD ................................ Continuous
Continuous Power Dissipation (TA = +70°C)5-Pin SC70 (derate 2.5mW/°C above +70°C) ............ 200mW5-Pin SOT23 (derate 7.1mW/°C above +70°C) ..........571mW6-Pin SC70 (derate 2.27mW/°C above +70°C) ...........181mW8-Pin SOT23 (derate 7.52mW/°C above +70°C) ........602mW8-Pin µMAX (derate 4.5mW/°C above +70°C) ........... 362mW8-Pin SO (derate 5.88mW/°C above +70°C) .............. 471mW14-Pin TSSOP (derate 8.33mW/°C above +70°C) ..... 667mW14-Pin SO (derate 8.33mW/°C above +70°C) ............ 667mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ connected to VDD/2, SHDN = VDD (MAX4401 only), TA = +25°C, unless
otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Supply Voltage RangeVDDInferred from PSRR test2.555V
Supply Current per AmpliierIDD
VDD = 2.5V320µAVDD = 5.0V410700
Supply Current in ShutdownISHDNSHDN = VSS (Note 1)0.000021µA
Input Offset VoltageVOS
MAX4400/MAX4401±0.8±4.5mVMAX4402/MAX4403±1.0±5.5
Input Bias CurrentIB(Note 2)±0.1±100pA
Input Offset CurrentIOS(Note 2)±0.1±100pA
Input ResistanceRINDifferential or common mode1000GΩ
Input Common-Mode Voltage
RangeVCMInferred from CMRR testVSSVDD - 1.4V
Common-Mode Rejection RatioCMRRVSS ≤ VCM ≤ VDD - 1.4V6884dB
Power-Supply Rejection RatioPSRR2.5V ≤ VDD ≤ 5.5V78100dB
Large-Signal Voltage GainAVOL
VSS + 0.3V ≤
VOUT ≤ VDD - 0.3V
RL = 100kΩ120dBRL = 2kΩ90110
Output Voltage HighVOH
Specified as
|VDD - VOH|
RL = 100kΩ3mVRL = 2kΩ55200
Output Voltage LowVOL
Specified as
|VSS - VOL|
RL = 100kΩ2mVRL = 2kΩ3075
Output Short-Circuit CurrentSourcing12mASinking30
Shutdown Mode Output LeakageIOUTSHDN
Device in shutdown mode, SHDN = SS,
VSS < VOUT < VCC (Note 1)±1.0µA
SHDN Logic LowVIL(Note 1)0.3 × VDDV
SHDN Logic HighVIH(Note 1)0.7 × VDDV
SHDN Input CurrentIIL, IIHSHDN = VDD or VSS (Note 1)±0.001±500nA
Gain-Bandwidth ProductGBW800kHz
Phase MarginfM70degrees
Gain Margin20dB
MAX4400–MAX4403Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Electrical Characteristics

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Absolute Maximum Ratings
Note 1: Shutdown mode is only available in the 6-pin SC70 single op amp (MAX4401).
Note 2:
Guaranteed by design.
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ connected to VDD/2, TA = -40°C to +125°C, unless otherwise noted.) (Note 3)
(VDD = +5V, VSS = 0V, VCM = 0V, VOUT = VDD/2, RL = ∞ connected to VDD/2, SHDN = VDD (MAX4401 only), TA = +25°C, unless
otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Supply Voltage RangeVDDInferred by PSRR test2.55.5V
Supply Current per AmpliierIDD800µAMAX4400/MAX4401±6.5
Input Offset VoltageVOSMAX4402/MAX4403±8.0mV
Input Offset Voltage DriftTCVOS±1μV/°C
Input Bias CurrentIB(Note 2)±100pA
Input Offset CurrentIOS(Note 2)±100pA
Input Common-Mode Voltage
RangeVCMInferred from CMRR testVSSVDD - 1.5V
Common-Mode Rejection RatioCMRRVSS ≤ VCM ≤ VDD - 1.5V65dB
VSS ≤ VCM ≤ VDD - 1.0V TA = -20°C to +125°C50
Power-Supply Rejection RatioPSRR2.5V ≤ VCC ≤ 5.5V74dB
Shutdown Mode Output
LeakageIOUTSHDN
Device in shutdown
mode, SHDN = VSS,
VSS < VOUT < VDD
(Note 1)
TA = -40°C to +85°C±1.0
TA = +85°C to +125°C±5.0
SHDN Logic LowVIL(Note 1)0.3 × VDDV
SHDN Logic HighVIH(Note 1)0.7 × VDDV
SHDN Input CurrentIIL, IIHSHDN = VDD or VSS (Notes 1, 2)±1000nA
Large-Signal Voltage GainAVOLVSS + 0.3V ≤ VOUT ≤ VDD - 0.3V, RL = 2kΩ85dB
Output Voltage HighVOHSpeciied as |VDD - VOH|, RL = 2kΩ250mV
Output Voltage LowVOLSpeciied as |VSS - VOL|, RL = 2kΩ100mV
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS

Input Voltage-Noise Densityenf = 10kHz36nV/√Hz
Input Current-Noise Densityinf = 10kHz1fA/√Hz
Capacitive-Load StabilityCLOADAV = +1V/V400pF
Shutdown Delay TimetSHDNAV = +1V/V0.4μs
Enable Delay TimetEN(Note 1)6μs
Power-On TimetON5μs
Input CapacitanceCIN2.5pF
Total Harmonic DistortionTHDf = 10kHz, VOUT =
2VP-P, AV = +1V/V
RL = 100kΩ0.009%RL = 2kΩ0.015
Settling Time to 0.1%tSVOUT = 2V step7μs
MAX4400–MAX4403Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Electrical Characteristics
Electrical Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL = ∞ connected to VDD/2, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE SWING HIGH
vs. TEMPERATURE
MAX4400 toc09
- V
(mV)
RL = 2kΩ to VDD/2
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
MAX4400 toc08
MAX4401
OUTPUT LEAKAGE CURRENT
vs. TEMPERATURE
MAX4400 toc07
ILEAK
(pA)
VSHDN = VSS
VOUT = VDD/2
10k
100k
MAX4401
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX4400 toc06
TEMPERATURE (°C)
SUPPLY CURRENT (pA)
VSHDN = VSS
SUPPLY CURRENT
vs. TEMPERATURE
MAX4400 toc05
TEMPERATURE (°C)
SUPPLY CURRENT (1001k10k100k1M
OUTPUT IMPEDANCE
vs. FREQUENCY

FREQUENCY (Hz)
MAX4400 toc4
OUTPUT IMPEDANCE (
1001k10010k100k1M
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY

MAX4400 toc03
FREQUENCY (Hz)
PSRR (dB)
-180101k10M1M
GAIN AND PHASE
vs. FREQUENCY (CL = 400pF)

MAX4400 toc02
FREQUENCY (Hz)
GAIN (dB)/PHASE (degrees)
10010k100k
AVCL = +1000V/V
-180101k10M1M
GAIN AND PHASE
vs. FREQUENCY (NO LOAD)

MAX4400 toc01
FREQUENCY (Hz)
GAIN (dB)/PHASE (degrees)
10010k100k
AVCL = +1000V/V
MAX4400–MAX4403Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Typical Operating Characteristics
(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL = ∞ connected to VDD/2, TA = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
MAX4400 toc18
THD + N (%)
RL = 100kΩ
f = 10kHz
BW = 20kHz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. INPUT AMPLITUDE
MAX4400 toc17
THD + N (%)
RL = 2kΩ
f = 10kHz
BW = 20kHz1k10010k100k
TOTAL HARMONIC DISTORTION
vs. FREQUENCY

MAX4400 toc16
THD (%)
RL = 100kΩ
VOUT = 2VP-P
AV = +11k10010k100k
TOTAL HARMONIC DISTORTION
vs. FREQUENCY

MAX4400 toc15
FREQUENCY (Hz)
THD (%)
RL = 2kΩ
VOUT = 2VP-P
AV = +1
MINIMUM OPERATING VOLTAGE
vs. TEMPERATURE
MAX4400 toc14
TEMPERATURE (°C)
MIN
(V)
LARGE-SIGNAL GAIN
vs. TEMPERATURE
MAX4400 toc13
TEMPERATURE (°C)
GAIN (dB)
RL = 2kΩ
LARGE-SIGNAL GAIN
vs. OUTPUT VOLTAGE
MAX4400 toc12
VOUT (V)
GAIN (dB)
RL = 2kΩ
COMMON-MODE REJECTION RATIO
vs. TEMPERATURE
MAX4400 toc11
TEMPERATURE (°C)
CMRR (dB)
OUTPUT VOLTAGE SWING LOW
vs. TEMPERATURE
MAX4400 toc10
TEMPERATURE (°C)
- V
(mV)
RL = 2kΩ to VDD/2
MAX4400–MAX4403Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Typical Operating Characteristics (continued)
(VDD = +5V, VSS = 0V, VCM = VDD/2, VSHDN = 5V, RL = ∞ connected to VDD/2, TA = +25°C, unless otherwise noted.)
MAX4402/MAX4403
CHANNEL-TO-CHANNEL ISOLATION
vs. FREQUENCY

MAX4400 toc25
CHANNEL-TO-CHANNEL ISOLATION (dB)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4400 toc24
SUPPLY CURRENT (
VOUT = VDD/2200300100400500600
PERCENT OVERSHOOT
vs. CAPACITIVE LOAD

MAX4400 toc22
CLOAD (pF)
OVERSHOOT (%)
NEGATIVE OVERSHOOT
POSITIVE OVERSHOOT
10µs/div
2V/div
OUT
NONINVERTING LARGE-SIGNAL
TRANSIENT RESPONSE

MAX4400 toc21
AV = +1V/V
RL = 2kΩ
2µs/div
50mV/div
OUT
NONINVERTING SMALL-SIGNAL
TRANSIENT RESPONSE

MAX4400 toc20
AV = +1V/V
RL = 2kΩ
CAPACITIVE-LOAD STABILITY

200010k100k
MAX4400 toc19
RESISTIVE LOAD (Ω)
CAPACITIVE LOAD (pF)
AV = +1
TA = +25°C
UNSTABLE
REGION
STABLE
REGION
MAX4400–MAX4403Single/Dual/Quad, Low-Cost, Single-Supply,
Rail-to-Rail Op Amps with Shutdown
Typical Operating Characteristics (continued)
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