MAX4236AEUA+-MAX4236EUT+-MAX4236EUT+T-MAX4237EUT+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX4236EUT+T ,SOT23, Very High Precision, 3V/5V Rail-to-Rail Op AmpsFeaturesThe MAX4236/MAX4237 are high-precision op amps♦ Ultra-Low Offset Voltagethat feature an exc ..
MAX4237BESA ,SOT23 / Very High Precision / 3V/5V Rail-to-Rail Op AmpsApplications

MAX4236AEUA+-MAX4236EUT+-MAX4236EUT+T-MAX4237EUT+T
SOT23, Very High Precision, 3V/5V Rail-to-Rail Op Amps
General Description
The MAX4236/MAX4237 are high-precision op amps
that feature an exceptionally low offset voltage and off-
set voltage temperature coefficient without using any
chopper techniques. The MAX4236 and MAX4237 have
a typical large-signal, open-loop voltage gain of 120dB.
These devices have an ultra-low input-bias current of
1pA. The MAX4236 is unity-gain stable with a gain-
bandwidth product of 1.7MHz, while the MAX4237 is
stable for closed-loop gains greater than 5V/V with a
gain-bandwidth product of 7.5MHz. Both devices have
a shutdown function in which the quiescent current is
reduced to less than 0.1µA, and the amplifier output is
forced into a high-impedance state.
The input common-mode range of the MAX4236/
MAX4237 extends below the negative supply range, and
the output swings Rail-to-Rail®. These features make the
amplifiers ideal for applications with +3V or +5V single
power supplies. The MAX4236/MAX4237 are specified for
the extended temperature range (-40°C to +85°C) and
are available in tiny SOT23, µMAX, and SO packages. For
greater accuracy, the A grade µMAX and SO packages
are tested to guarantee 20µV (max) offset voltage at
+25°C and less then 2µV/°C drift.
Applications
Strain Gauges
Piezoelectric Sensors
Thermocouple Amplifiers
Electrochemical Sensors
Battery-Powered Instrumentation
Instrumentation Amplifiers
FeaturesUltra-Low Offset Voltage
20μV (max) at +25°C (Grade A)
50μV (max) at +25°C (Grade B, 6-Pin SOT23)Ultra-Low Offset Voltage Drift
2μV/°C (max) (Grade A)
4.5μV/°C (max) (Grade B, 6-Pin SOT23)
5.5μV/°C (max) (6-Pin SOT23)Ultra-Low 1pA Input Bias CurrentHigh Open-Loop Voltage Gain: 110dB (min)
(RL= 100kΩ)Compatible with +3V and +5V Single-Supply
Power SystemsGround Sensing: Input Common-Mode Range
Includes Negative RailRail-to-Rail Output Swing into a 1kΩLoad350μA Quiescent CurrentGain-Bandwidth Product
1.7MHz (MAX4236, AV= 1V/V)
7.5MHz (MAX4237, AV= 5V/V)200pF Capacitive Load Handling CapabilityShutdown Mode: 0.1μA Quiescent Current,
Places Output in a High-Impedance StateAvailable in Space-Saving SOT23 and μMAX
Packages
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-to-Rail Op Amps
TOP VIEW
VEE
IN-IN+VCCSHDN
OUT
MAX4236
MAX4237
SOT23-6
VCC
OUT
N.C.VEE
IN+
IN-
N.C.
MAX4236A/B
MAX4237A/B
SO-8/μMAX
SHDN
Pin Configurations
Ordering Information
19-2110; Rev 0; 8/01
PARTTEMP. RANGEPIN-PACKAGE
MAX4236EUT-T-40°C to +85°C6 SOT23-6
MAX4236AEUA-40°C to +85°C8 µMAX
MAX4236BEUA-40°C to +85°C8 µMAX
MAX4236AESA-40°C to +85°C8 SO
MAX4236BESA-40°C to +85°C8 SO
MAX4237EUT-T-40°C to +85°C6 SOT23-6
MAX4237AEUA-40°C to +85°C8 µMAX
MAX4237BEUA-40°C to +85°C8 µMAX
MAX4237AESA-40°C to +85°C8 SO
MAX4237BESA-40°C to +85°C8 SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-To-Rail Op Amps
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS (SO-8 and μMAX-8)
(VCC= +2.4V to +5.5V, VEE= 0, VCM= 0, VOUT= VCC/2, RL= 100kΩto VCC/2, TA= TMINto TMAX, unless otherwise noted. Typical
values are at VCC= +5V and TA= +25°C.) (Note 1)
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.
Supply Voltage (VCC- VEE)......................................-0.3V to +6V
Analog Input Voltage (IN+ or IN-)....(VEE- 0.3V) to (VCC+ 0.3V)
Logic Input Voltage (SHDN)............(VEE- 0.3V) to (VCC+ 0.3V)
Current into Any Pin............................................................20mA
Output Short-Circuit Duration....Continuous to Either VCCor VEE
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23-6 (derate 8.7mW/°C above +70°C).........696mW
8-Pin µMAX (derate 4.5mW/°C above +70°C)..............362mW
8-Pin SO (derate 5.9mW/°C above +70°C)...................471mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply Voltage RangeVCCGuaranteed by the PSRR test2.45.5V
In normal mode350440VCC = +5VIn shutdown mode0.12
In normal mode350440Quiescent Supply CurrentICC
VCC = +3VIn shutdown mode0.12
TA = +25oC±5±20VCC = +5V,
Grade ATA = TMIN to TMAX±150
TA = +25oC±5±50Input Offset VoltageVOS
VCC = +5V,
Grade BTA = TMIN to TMAX±340
Grade A±0.6±2Inp ut Offset V ol tag e Tem p er atur eoeffi ci entTCVOSVCC = +5V
(Note 3)Grade B±0.6±4.5µV/°C
Input Bias CurrentIB(Note 2)±1±500pA
Input Offset CurrentIOS(Note 2)±1pA
Input ResistanceRINDifferential or common mode1000MΩ
Input Common-Mode VoltageVCMGuaranteed by the CMRR test-0.15V C C - 1.2V
TA = +25oC84102VCC = +5V;
-0.15V ≤ VCM ≤
(VCC - 1.2V)TA = TMIN to TMAX80
TA = +25oC82102
Common-Mode Rejection RatioCMRR
VCC = +3.0V;
-0.15V ≤ VCM ≤
(VCC - 1.2V)TA = TMIN to TMAX78
TA = +25oC97120Power-Supply Rejection RatioPSRRVCC = +2.4V to
+5.5VTA = TMIN to TMAX95dB
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-To-Rail Op Amps
ELECTRICAL CHARACTERISTICS (SO-8 and μMAX-8) (continued)
(VCC= +2.4V to +5.5V, VEE= 0, VCM= 0, VOUT= VCC/2, RL= 100kΩto VCC/2, TA= TMINto TMAX, unless otherwise noted. Typical
values are at VCC= +5V and TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
RL = 100kΩ, VOUT =
15mV to (VCC - 50mV)110128VCC = +5V, RL
connected to
VCC/2,
TA = +25oC
RL = 1kΩ, VOUT =
0.15V to (VCC - 0.3V)105114
RL = 100kΩ, VOUT =
15mV to (VCC - 50mV)110VCC = +5V, RL
connected to
VCC/2,
TA = TMIN to
TMAX
RL = 1kΩ,
VOUT = 0.15V
to (VCC - 0.3V)
RL = 100kΩ, VOUT =
15mV to (VCC - 50mV)110128VCC = +3V, RL
connected to
VCC/2,
TA = +25oC
RL = 1kΩ,
VOUT = 0.15V
to (VCC - 0.3V)
RL = 100kΩ, VOUT =
15mV to (VCC - 50mV)105
Large-Signal Voltage GainAVOL
VCC = +3V, RL
connected to
VCC/2,
TA = TMIN to
TMAX
RL = 1kΩ,
VOUT = 0.15V
to (VCC - 0.3V)
VCC - VOH210VCC = +5V,
RL connected to VCC /2,
RL = 100kΩVOL - VEE310
VCC - VOH150250
Output Voltage SwingVOUT
VCC = +5V,
RL connected to VCC/2,
RL = 1kΩVOL - VEE50100
Shorted to VEE10Output Short-Circuit CurrentIOUT(SC)Shorted to VCC30mA
MAX42361.7Gain-Bandwidth ProductGBWPRL = ∞, CL = 5pFMAX42377.5MHz
MAX42360.3Slew RateSRVCC = +5V, VOUT = 4V stepMAX42371.3V/µs
MAX42361Settling TimetSVOUT settling to within
0.01%MAX42371µs
Total Harmonic DistortionTHDf = 5kHz, VOUT = 2Vp-p, VCC = +5V
RL = 10kΩ0.001%
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-To-Rail Op Amps
ELECTRICAL CHARACTERISTICS (SO-8 and μMAX-8) (continued)
(VCC= +2.4V to +5.5V, VEE= 0, VCM= 0, VOUT= VCC/2, RL= 100kΩto VCC/2, TA= TMINto TMAX, unless otherwise noted. Typical
values are at VCC= +5V and TA= +25°C.) (Note 1)
ELECTRICAL CHARACTERISTICS (SOT23-6)
(VCC= +2.4V to +5.5V, VEE= 0, VCM= 0, VOUT= VCC/2, RL= 100kΩto VCC/2, TA= TMINto TMAX, unless otherwise noted. Typical
values are at VCC= +5V and TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Input CapacitanceCINf = 100kHz7.5pF
Input Voltage Noise Densityenf = 1kHz14nV/√Hz
Input Noise Voltageenp-pf = 0.1Hz to 10Hz0.2µVp-p
MAX4236200Capacitive Load StabilityCLOADNo sustained oscillationsMAX4237200pF
Shutdown Mode Output
LeakageIOUT(SH)Device in shutdown mode (SHDN = VEE)
VOUT = 0 to VCC±0.01±1.0µA
SHDN Logic LowVIL0.3 ✕
VCCV
SHDN Logic HighVIH0.7 ✕
VCCV
SHDN Input CurrentSHDN = VEE or VCC13µA
Shutdown Delay Timet(SH)RL = 1kΩ1µs
Shutdown Recovery Timet(EN)RL = 1kΩ4µs
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply Voltage RangeVCCGuaranteed by the PSRR test2.45.5V
In normal mode350440VCC = +5VIn shutdown mode0.12
In normal mode350440Quiescent Supply CurrentICC
VCC = +3VIn shutdown mode0.12
TA = +25°C±5±50Input Offset VoltageVOSVCC = +5VTA = TMIN to TMAX±600µV
Inp ut Offset V ol tag e Tem p er atur eoeffi ci ent ( N ote 2) TCVOSVCC = +5V±0.6±5.5µV/°C
Input Bias CurrentIB(Note 2)±1±500pA
Input Offset CurrentIOS(Note 2)±1pA
Input ResistanceRINDifferential or common mode1000MΩ
Input Common-Mode VoltageVCMGuaranteed by the CMRR test-0.15V C C - 1.2V
TA = +25°C82102VCC = +5V, -0.15V
≤ VCM ≤ (VCC - 1.2V)TA = TMIN to TMAX80
TA = +25°C82102Common-Mode Rejection RatioCMRR
VCC = +3.0V; -0.15V
≤ VCM ≤ (VCC - 1.2V)TA = TMIN to TMAX78
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-To-Rail Op Amps
ELECTRICAL CHARACTERISTICS (SOT23-6) (continued)
(VCC= +2.4V to +5.5V, VEE= 0, VCM= 0, VOUT= VCC/2, RL= 100kΩto VCC/2, TA= TMINto TMAX, unless otherwise noted. Typical
values are at VCC= +5V and TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
TA = +25°C97120
Power-Supply Rejection RatioPSRRVCC = +2.4V to
+5.5VTA = TMIN to TMAX95
RL = 100kΩ,
VOUT = 15mV to
(VCC - 50mV)
110128VCC = +5V, RL
connected to
VCC/2,
TA = +25°C
RL = 1kΩ,
VOUT = 0.15V
to (VCC - 0.3V)
RL = 100kΩ, VOUT =
15mV to (VCC - 50mV)110VCC = +5V, RL
connected to
VCC/2,
TA = TMIN to
TMAX
RL = 1kΩ,
VOUT = 0.15V to
(VCC - 0.3V)
RL = 100kΩ,
VOUT = 15mV to
(VCC - 50mV)
110128VCC = +3V, RL
connected to
VCC/2,
TA = +25°C
RL = 1kΩ,
VOUT = 0.15V to
(VCC - 0.3V)
RL = 100kΩ,
VOUT = 15mV to
(VCC - 50mV)
Large-Signal Voltage GainAVOL
VCC = +3V, RL
connected to
VCC/2,
TA = TMIN to
TMAX
RL = 1kΩ,
VOUT = 0.15V to
(VCC - 0.3V)
VCC - VOH210VCC = +5V,
RL connected to VCC/2,
RL = 100kΩVOL - VEE310
VCC - VOH150250
Output Voltage SwingVOUT
VCC = +5V,
RL connected to VCC/2,
RL = 1kΩVOL - VEE50100
Shorted to VEE10
Output Short-Circuit CurrentIOUT(SC)
Shorted to VCC30
MAX42361.7Gain-Bandwidth ProductGBWPRL = ∞, CL = 15pFMAX42377.5MHz
MAX42360.3Slew RateSRVCC = +5V,
VOUT = 4V stepMAX42371.3V/µs
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-To-Rail Op Amps
VOS DISTRIBUTION
MAX
4236 toc01
VOS (μV)
PERCENT OF UNITS (%)
VCC = 5V
TCVOS DISTRIBUTION
MAX4236 toc02
TCVOS (μV/°C)
PERCENT OF UNITS (%)
VCC = 5V
OFFSET VOLTAGE vs. TEMPERATURE
MAX4236 toc02
OFFSET VOLTAGE (
TEMPERATURE (°C)
Typical Operating Characteristics
(VCC= +5V, VEE= 0, VCM= VCC/2, RL= 100kΩto VCC/2, TA= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS (SOT23-6) (continued)
(VCC= +2.4V to +5.5V, VEE= 0, VCM= 0, VOUT= VCC/2, RL= 100kΩto VCC/2, TA= TMINto TMAX, unless otherwise noted. Typical
values are at VCC= +5V and TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
MAX42361Settling TimetSVOUT settling to within 0.01%MAX42371µs
Total Harmonic DistortionTHDf = 5kHz, VOUT = 2Vp-p, VCC = +5V
RL = 10kΩ0.001%
Input CapacitanceCINf = 100kHz7.5pF
Input Voltage Noise Densityenf = 1kHz14nV/√Hz
Input Noise Voltageenp-pf = 0.1Hz to 10Hz0.2µVp-p
MAX4236200
Capacitive Load StabilityCLOADNo sustained oscillations
MAX4237200
Shutdown Mode Output
LeakageIOUT(SH)Device in shutdown mode (SHDN = VEE)
VOUT = 0 to VCC±0.01±1.0µA
SHDN Logic LowVIL0.3 x V CCV
SHDN Logic HighVIH0.7 x V CCV
SHDN Input CurrentSHDN = VEE or VCC13µA
Shutdown Delay Timet(SH)RL = 1kΩ1µs
Shutdown Recovery Timet(EN)RL = 1kΩ4µs
Note 1:All devices are 100% production tested at TA= +25°C; all specifications over temperature are guaranteed by design,
unless otherwise specified.
Note 2:Guaranteed by design, not production tested.
Note 3:Maxim specification limits for the temperature coefficient of the offset voltage (TCVOS) are 100% tested for the A-grade, 8-
pin SO and µMAX packages.
MAX4236/MAX4237
SOT23, Very High Precision, 3V/5V
Rail-To-Rail Op Amps
COMMON-MODE REJECTION RATIO
vs. COMMON-MODE INPUT VOLTAGE
MAX4236 toc04
COMMON-MODE INPUT VOLTAGE (V)
COMMON-MODE REJECTION RATIO (dB)
VCC = 3V
COMMON-MODE REJECTION RATIO
vs. FREQUENCY (VCC = 5V)
MAX4236 toc06
FREQUENCY (kHz)
COMMON-MODE REJECTION RATIO (dB)
0.011010010000.1110,000
COMMON-MODE REJECTION RATIO
vs. FREQUENCY (VCC = 3V)
MAX4236 toc07
FREQUENCY (kHz)
COMMON-MODE REJECTION RATIO (dB)
0.011010010000.1110,000
0.1110100100010,000
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (VCC = 5V)
MAX4236 toc08
FREQUENCY (kHz)
PSSR (dB)
0.0011010000.10.01110010,000100,000
MAX4237
OPEN-LOOP GAIN/PHASE
vs. FREQUENCY MAX4236 toc09
FREQUENCY (kHz)
GAIN (dB)
PHASE (DEGREES)
PHASE
GAIN
VCC = 5V/3V
CL = 15pF/200pF
Typical Operating Characteristics (continued)
(VCC= +5V, VEE= 0, VCM= VCC/2, RL= 100kΩto VCC/2, TA= +25°C, unless otherwise noted.)
0.0011010000.10.01110010,000
MAX4236
OPEN-LOOP GAIN/PHASE
vs. FREQUENCY MAX4236 toc10
GAIN (dB)
PHASE (DEGREES)
PHASE
GAIN
VCC = 5V/3V
CL = 15pF/200pF
INPUT VOLTAGE NOISE vs. FREQUENCY
MAX4236 toc11
INPUT VOLTAGE NOISE (nV
Hz)
0.000110010k100k
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX4236 toc12
THD + NOISE (%)
VOUT = 2Vp-p
COMMON-MODE REJECTION RATIO
vs. COMMON-MODE INPUT VOLTAGE
MAX4236 toc05
COMMON-MODE INPUT VOLTAGE (V)
COMMON-MODE REJECTION RATIO (dB)
VCC = 5V

Partno	Mfg	Dc	Qty	Available	Descript
MAX4236AEUA+ \|MAX4236AEUA	MAXIM	N/a	685	avai	SOT23, Very High Precision, 3V/5V Rail-to-Rail Op Amps
MAX4236EUT+ \|MAX4236EUT	MAX	N/a	867	avai	SOT23, Very High Precision, 3V/5V Rail-to-Rail Op Amps
MAX4236EUT+T \|MAX4236EUTT	MAXIM	N/a	20000	avai	SOT23, Very High Precision, 3V/5V Rail-to-Rail Op Amps
MAX4237EUT+T	MAXIM	N/a	1545	avai	SOT23, Very High Precision, 3V/5V Rail-to-Rail Op Amps