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MAX4238/MAX4239
General Description
The MAX4238/MAX4239 are low-noise, low-drift, ultrahigh precision amplifiers that offer near-zero DC offset
and drift through the use of patented autocorrelating
zeroing techniques. This method constantly measures
and compensates the input offset, eliminating drift over
time and temperature and the effect of 1/f noise. Both
devices feature rail-to-rail outputs, operate from a single
2.7V to 5.5V supply, and consume only 600µA. An activelow shutdown mode decreases supply current to 0.1µA.
The MAX4238 is unity-gain stable with a gain-bandwidth
product of 1MHz, while the decompensated MAX4239
is stable with AV ≥ 10V/V and a GBWP of 6.5MHz. The
MAX4238/MAX4239 are available in 8-pin narrow SO,
6-pin TDFN and SOT23 packages.
Applications
●
●
●
●
●
●
Thermocouples
Strain Gauges
Electronic Scales
Medical Instrumentation
Instrumentation Amplifiers
Automotive
Ordering Information appears at end of data sheet.
Pin Configurations appear at end of data sheet.
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Benefits and Features
● DC Performance Ideal for High-Precision Sensor Interface
• Ultra-Low, 0.1µV Offset Voltage
• 2.0µV (max) at +25°C
• 2.5µV (max) at -40°C to +85°C
• 3.5µV (max) at -40°C to +125°C
• Low 10nV/°C Drift
• Low Noise: 1.5µVP-P from DC to 10Hz
• 150dB AVOL, 140dB PSRR, 140dB CMRR
• High Gain-Bandwidth Product
• 1MHz (MAX4238)
• 6.5MHz (MAX4239)
• Ground-Sensing Input
• Rail-to-Rail Output (RL = 1kΩ)
● Low Power Consumption Reduces System Power
• Single 2.7V to 5.5V Supply Voltage Range
• 600µA Supply Current
• 0.1µA Shutdown Mode
● Low Power Consumption Reduces System Power
● AEC-Q100 Qualified, Refer to Ordering Information
for the List of /V Parts
Typical Application Circuit
5V
18kΩ
360Ω
STRAIN GAUGE
AV = 100
18kΩ
19-2424; Rev 10; 12/20
MAX4238/
MAX4239
AIN
ADC
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Absolute Maximum Ratings
Power-Supply Voltage (VCC to GND)......................................6V
All Other Pins.............................(VGND - 0.3V) to (VCC + 0.3V)
Output Short-Circuit Duration
(OUT shorted to VCC or GND)..............................Continuous
Continuous Power Dissipation (TA = +70°C)
6-Pin Plastic SOT23
(derate 5.4mW/°C above +70°C)..............................431.3mW
8-Pin Plastic SO (derate 5.88mW/°C above +70°C)....471mW
6-Pin TDFN-EP (derate 18.2mW above +70°C)........1454mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering Temperature (reflow)
Lead(Pb)-Free Packages.............................................+260°C
Packages Containing Lead..........................................+240°C
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.
Package Information
SO-8
PACKAGE CODE
S8+4/S8-4
Outline Number
21-0041
Land Pattern Number
90-0096
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA)
170°C/W
Junction to Case (θJC)
40°C/W
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
132°C/W
Junction to Case (θJC)
38°C/W
TDFN-6
PACKAGE CODE
T633+2
Outline Number
21-0137
Land Pattern Number
90-0058
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA)
55°C/W
Junction to Case (θJC)
9°C/W
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
42°C/W
Junction to Case (θJC)
9°C/W
www.maximintegrated.com
Maxim Integrated │ 2
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Package Information (continued)
SOT23-6
PACKAGE CODE
U6FH+6/U6FH-6
Outline Number
21-0058
Land Pattern Number
90-0175
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA)
185.5°C/W
Junction to Case (θJC)
75°C/W
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
134.4°C/W
Junction to Case (θJC)
39°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(2.7V ≤ VCC ≤ 5.5V, VCM = VGND = 0V, VOUT = VCC/2, RL = 10kΩ connected to VCC/2, SHDN = VCC, TA = +25°C, unless
otherwise noted.)
PARAMETER
Input Offset Voltage
SYMBOL
VOS
CONDITIONS
MIN
(Note 1)
Long-Term Offset Drift
Input Bias Current
Input Offset Current
Peak-to-Peak Input Noise
Voltage
Input Voltage-Noise Density
Common-Mode Input
Voltage Range
TYP
MAX
0.1
2
UNITS
µV
50
nV/1000hr
IB
(Note 2)
1
pA
IOS
(Note 2)
2
pA
RS = 100W, 0.01Hz to 10Hz
1.5
µVP-P
f = 1kHz
30
NV/√Hz
enP-P
en
VCM
VGND
- 0.1
Inferred from CMRR test
VCC 1.3
V
Common-Mode Rejection Ratio
CMRR
-0.1V ≤ VCM ≤ VCC - 1.3V (Note 1)
120
140
dB
Power-Supply Rejection Ratio
PSRR
2.7V ≤ VCC ≤ 5.5V (Note 1)
120
140
dB
0.05V ≤ VOUT ≤ VCC - 0.05V
RL = 10kW
(Note 1)
125
150
0.1V ≤ VOUT ≤ VCC - 0.1V
(Note 1)
125
Large-Signal Voltage Gain
AVOL
RL = 10kW
Output Voltage Swing
VOH/VOL
RL = 1kW
RL = 1kW
145
VCC - VOH
4
10
VOL
4
10
VCC - VOH
35
50
VOL
35
50
Output Short-Circuit Current
To either supply
Output Leakage Current
0 ≤ VOUT ≤ VCC, SHDN = GND (Note 2)
www.maximintegrated.com
dB
40
0.01
mV
mA
1
µA
Maxim Integrated │ 3
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Electrical Characteristics (continued)
(2.7V ≤ VCC ≤ 5.5V, VCM = VGND = 0V, VOUT = VCC/2, RL = 10kΩ connected to VCC/2, SHDN = VCC, TA = +25°C,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
VCC = 5V, CL = 100pF,
VOUT = 2V step
MAX4238
0.35
MAX4239
1.6
RL = 10kW, CL = 100pF,
measured at f = 100kHz
MAX4238
1
MAX4239
6.5
Minimum Stable Closed-Loop
Gain
RL = 10kW, CL = 100pF,
phase margin = 60°
MAX4238
1
MAX4239
10
Maximum Closed-Loop Gain
RL = 10kW, CL = 100pF,
phase margin = 60°
Slew Rate
Gain-Bandwidth Product
GBWP
Settling Time
-1V step
AV = 10
(Note 4)
Overload Recovery Time
Startup Time
Supply Voltage Range
AV = 10
VCC
Supply Current
ICC
Shutdown Logic-High
VIH
Shutdown Logic-Low
VIL
Shutdown Input Current
www.maximintegrated.com
MAX4238
1000
MAX4239
6700
0.1% (10 bit)
0.5
0.025% (12 bit)
1.0
0.006% (14 bit)
1.7
0.0015% (16 bit)
2.3
0.1% (10 bit)
3.3
0.025% (12 bit)
4.1
0.006% (14 bit)
4.9
0.0015% (16 bit)
5.7
0.1% (10 bit)
1.8
0.025% (12 bit)
2.6
0.006% (14 bit)
3.4
0.0015% (16 bit)
4.3
Inferred by PSRR test
2.7
MAX
V/µs
MHz
V/V
V/V
ms
ms
ms
5.5
SHDN = VCC, no load, VCC = 5.5V
600
850
SHDN = GND, VCC = 5.5V
0.1
1
2.2
0V ≤ V SHDN ≤ VCC
UNITS
V
µA
V
0.1
0.8
V
1
µA
Maxim Integrated │ 4
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Electrical Characteristics
(2.7V ≤ VCC ≤ 5.5V, VCM = GND = 0V, VOUT = VCC/2, RL = 10kΩ connected to VCC/2, SHDN = VCC, TA = -40°C to +125°C, unless
otherwise noted.) (Note 5)
PARAMETER
Input Offset Voltage
Input Offset Drift
Common-Mode Input Voltage
Range
SYMBOL
CONDITIONS
VOS
(Note 1)
TCVOS
(Note 1)
VCM
MIN
2.5
TA = -40°C to +125°C
3.5
10
Inferred from CMRR test
VGND
- 0.05
TA = -40°C to +85°C
115
TA = -40°C to +125°C
90
CMRR
VGND - 0.05V ≤
VCM ≤ VCC –
1.4V (Note 1)
Power-Supply Rejection Ratio
PSRR
2.7V ≤ VCC ≤ 5.5V (Note 1)
120
RL = 10kW,
0.1V ≤ VOUT
≤ VCC - 0.1V
(Note 1)
TA = -40°C to +85°C
125
TA = -40°C to +125°C
95
0.1V ≤ VOUT ≤ VCC - 0.1V,
TA = -40°C to +85°C
120
0.2V ≤ VOUT ≤ VCC - 0.2V,
TA = -40°C to +125°C
80
AVOL
RL = 1kW
(Note 1)
RL = 10kW
Output Voltage Swing
VOH/VOL
RL = 1kW
Supply Voltage Range
VCC
Supply Current
ICC
Shutdown Logic-High
VIH
Shutdown Logic-Low
VIL
µV
nV/°C
VCC
- 1.4
V
dB
dB
dB
VCC - VOH
20
VOL
20
VCC - VOH
100
VOL
100
Inferred by PSRR test
UNITS
dB
0V ≤ VOUT ≤ VCC, SHDN = GND
(Note 3)
Output Leakage Current
MAX
TA = -40°C to +85°C
Common-Mode Rejection Ratio
Large-Signal Voltage Gain
TYP
2.7
SHDN = VCC, no load, VCC = 5.5V
2
µA
5.5
V
900
SHDN = GND, VCC = 5.5V
mV
2
2.2
µA
V
0.7
V
Shutdown Input Current
0V ≤ VSHDN ≤ VCC
2
µA
Note 1: Guaranteed by design. Thermocouple and leakage effects preclude measurement of this parameter during production
testing. Devices are screened during production testing to eliminate defective units.
Note 2: IN+ and IN- are gates to CMOS transistors with typical input bias current of 1pA. CMOS leakage is so small that it is
impractical to test and guarantee in production. Devices are screened during production testing to eliminate defective units.
Note 3: Leakage does not include leakage through feedback resistors.
Note 4: Overload recovery time is the time required for the device to recover from saturation when the output has been
driven to either rail.
Note 5: Specifications are 100% tested at TA = +25°C, unless otherwise noted. Limits over temperature are guaranteed by design.
www.maximintegrated.com
Maxim Integrated │ 5
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Typical Operating Characteristics
(VCC = 5V, VCM = 0V, RL = 10kΩ connected to VCC/2, SHDN = VCC, TA = +25°C, unless otherwise noted.)
10
-1.5 -1.2 -0.9 -0.6 -0.3 0
0.3 0.6 0.9 1.2 1.5
0.25
0.20
VCC = 2.7V
0.15
VCC = 5V
0.10
4.8
0
5
10
15
MAX4238/39 toc03
TA = -40° C
-0.2
0
0.9
1.8
2.7
SUPPLY VOLTAGE (V)
COMMON-MODE VOLTAGE (V)
OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
MAX4238
GAIN AND PHASE vs. FREQUENCY
0.25
VCC = 2.7V
0.20
VCC = 5V
0.15
0.10
0
20
TA = +25° C
0
-0.4
5.5
0.05
0
5
10
15
20
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
100
1k
10k
100k
1M
MAX4238
GAIN AND PHASE vs. FREQUENCY
MAX4238
GAIN AND PHASE vs. FREQUENCY
VCC = 5V
GAIN = 60dB
RL = 10kΩ
CL = 100pF
100
1k
10k
100k
FREQUENCY (Hz)
www.maximintegrated.com
1M
10M
VCC = 5V
GAIN = 40dB
RL = 10kΩ
CL = 0pF
100
1k
10k
100k
FREQUENCY (Hz)
1M
10M
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
10M
MAX4238/39 toc09
MAX4238
GAIN AND PHASE vs. FREQUENCY
GAIN AND PHASE (dB/DEGREES)
FREQUENCY (Hz)
GAIN AND PHASE (dB/DEGREES)
SINK CURRENT (mA)
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
3.6
VCC = 5V
GAIN = 60dB
RL = 10kΩ
CL = 0pF
SOURCE CURRENT (mA)
MAX4238/39 toc07
GAIN AND PHASE (dB/DEGREES)
80
60
40
20
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
4.1
0.30
0.05
0
3.4
2.7
0.35
OUTPUT LOW VOLTAGE (V)
OUTPUT HIGH VOLTAGE (V)
MAX4238/39 toc04
OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
VOH = VCC - VOUT
-0.2
-0.4
OFFSET VOLTAGE (µV)
0.30
0
MAX4238/39 toc08
0
TA = -40°C
TA = +125° C
0.2
MAX4238/39 toc06
20
TA = +25°C
MAX4238/39 toc05
30
0.2
0.4
OFFSET VOLTAGE (µV)
OFFSET VOLTAGE (µV)
40
TA = +125°C
GAIN AND PHASE (dB/DEGREES)
0.4
MAX4238/39 toc01
PERCENTAGE OF UNITS (%)
50
OFFSET VOLTAGE
vs. COMMON-MODE VOLTAGE
OFFSET VOLTAGE vs. SUPPLY VOLTAGE
MAX4238/39 toc02
INPUT OFFSET DISTRIBUTION
VCC = 5V
GAIN = 40dB
RL = 10kΩ
CL = 68pF
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
Maxim Integrated │ 6
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Typical Operating Characteristics (continued)
(VCC = 5V, VCM = 0V, RL = 10kΩ connected to VCC/2, SHDN = VCC, TA = +25°C, unless otherwise noted.)
1E+5
1E+6
1E+7
1E+5
1E+6
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
-40
-140
10
100
1000
0
1
2
3
4
5
MAX4238
LARGE-SIGNAL TRANSIENT RESPONSE
MAX4238/39 toc15
IN
1V/div
-160
0.01
0.1
1
10
100
1000
AV = 1V/V
RL = 2kΩ
CL = 100pF
FREQUENCY (kHz)
MAX4239
SMALL-SIGNAL TRANSIENT RESPONSE
MAX4238/39 toc18
IN
50mV/div
IN
50mV/div
OUT
50mV/div
10µs/div
OVERVOLTAGE RECOVERY TIME
MAX4238/39 toc17
MAX4238/39 toc16
0
OUT
1V/div
FREQUENCY (kHz)
MAX4238
SMALL-SIGNAL TRANSIENT RESPONSE
MAx4238/39 toc12
SUPPLY CURRENT (µA)
200
-80
-140
1
300
-100
-120
0.1
TA = +25°C
-60
-120
0.01
TA = -40°C
400
MAX4238/39 toc14
-20
CMRR (dB)
-80
-100
TA = +125°C
SUPPLY VOLTAGE (V)
0
MAX4238/39 toc13
-60
SUPPLY CURRENT vs. SUPPLY VOLTAGE
500
1E+7
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
-40
600
100
FREQUENCY (Hz)
-20
-160
MAX4238/39 toc11
80
60
40
20
0
-20
-40
-60
-80
-100
VCC = 5V
-120
GAIN = 40dB
-140
RL = 10kΩ
-160
CL = 100pF
-180
1E+2
1E+3
1E+4
FREQUENCY (Hz)
0
PSRR (dB)
GAIN AND PHASE (dB/DEGREES)
80
60
40
20
0
-20
-40
-60
-80
-100
VCC = 5V
-120
GAIN = 40dB
-140
RL = 10kΩ
-160
CL = 0pF
-180
1E+2
1E+3
1E+4
MAX4239
GAIN AND PHASE vs. FREQUENCY
MAX4238/39 toc10
GAIN AND PHASE (dB/DEGREES)
MAX4239
GAIN AND PHASE vs. FREQUENCY
0
IN
50mV/div
OUT
1V/div
OUT
500mV/div
0
AV = 1V/V
RL = 2kΩ
CL = 100pF
10µs/div
www.maximintegrated.com
AV = 10V/V
RL = 2kΩ
CL = 100pF
10µs/div
AV = 100V/V
RL = 10kΩ
VCC = 2.5V
VEE = -2.5V
400µs/div
Maxim Integrated │ 7
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Typical Operating Characteristics (continued)
(VCC = 5V, VCM = 0V, RL = 10kΩ connected to VCC/2, SHDN = VCC, TA = +25°C, unless otherwise noted.)
MAX4238/39 toc19
EMIRR vs. FREQUENCY
140
MAX4238/39 toc21
DC TO 10Hz NOISE
VCC = 5V, RFIN = 16dBm
120
EMIRR (dB)
100
0.6µV/div
OUT
80
60
40
20
VCC = 2.5V
VEE = -2.5V
0
1s/div
100
1000
FREQUENCY (MHz)
Offset Error Sources
Pin Description
PIN
TDFN SOT23
10
SO
NAME
FUNCTION
1
1
6
OUT
Amplifier Output
2
2
4
GND
Ground
3
3
3
IN+
Noninverting Input
4
4
2
IN-
Inverting Input
Shutdown Input. Active-low
shutdown, connect to VCC
for normal operation.
5
5
1
SHDN
6
6
7
VCC
Positive Power Supply
—
—
5, 8
N.C.
No Connection. Not
internally connected.
—
—
—
EP
Detailed Description
Exposed Pad (TDFN only).
Connect EP to GND.
The MAX4238/MAX4239 are high-precision amplifiers
that have less than 2.5µV of input-referred offset and low
1/f noise. These characteristics are achieved through a
patented autozeroing technique that samples and cancels
the input offset and noise of the amplifier. The pseudorandom
clock frequency varies from 10kHz to 15kHz, reducing
intermodulation distortion present in chopper-stabilized
amplifiers.
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To achieve very low offset, several sources of error common
to autozero-type amplifiers need to be considered. The
first contributor is the settling of the sampling capacitor.
This type of error is independent of input-source impedance,
or the size of the external gain-setting resistors. Maxim
uses a patented design technique to avoid large changes
in the voltage on the sampling capacitor to reduce settling
time errors.
The second error contributor, which is present in both
autozero and chopper-type amplifiers, is the charge injection
from the switches. The charge injection appears as current
spikes at the input, and combined with the impedance
seen at the amplifier’s input, contributes to input offset
voltage. Minimize this feedthrough by reducing the size of
the gain-setting resistors and the input-source impedance.
A capacitor in parallel with the feedback resistor reduces
the amount of clock feedthrough to the output by limiting
the closed-loop bandwidth of the device.
The design of the MAX4238/MAX4239 minimizes the
effects of settling and charge injection to allow specification
of an input offset voltage of 0.1µV (typ) and less than
2.5µV over temperature (-40°C to +85°C).
1/f Noise
1/f noise, inherent in all semiconductor devices, is inversely
proportional to frequency. 1/f noise increases 3dB/octave
and dominates amplifier noise at lower frequencies. This
noise appears as a constantly changing voltage in series
with any signal being measured. The MAX4238/MAX4239
treat 1/f noise as a slow varying offset error, inherently
canceling the 1/f noise.
Maxim Integrated │ 8
MAX4238/MAX4239
TOP VIEW
IN-
Pin Configurations
SHDN
Autozeroing amplifiers typically require a substantial amount
of time to recover from an output overload. This is due to the
time it takes for the null amplifier to correct the main amplifier
to a valid output. The MAX4238/MAX4239 require only
3.3ms to recover from an output overload (see Electrical
Characteristics and Typical Operating Characteristics).
VCC
Output Overload Recovery
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
6
5
4
EP*
MAX4238/
MAX4239
Shutdown
The MAX4238/MAX4239 feature a low-power (0.1µA)
shutdown mode. When SHDN is pulled low, the clock
stops and the device output enters a high-impedance
state. Connect SHDN to VCC for normal operation.
Applications Information
ADC Buffer Amplifier
The low offset, fast settling time, and 1/f noise cancellation
of the MAX4238/MAX4239 make these devices ideal for
ADC buffers. The MAX4238/MAX4239 are well suited
for low-speed, high-accuracy applications, such as strain
gauges (see Typical Application Circuit).
2
3
GND
IN+
TDFN
(3mm x 3mm x 0.8mm)
Minimum and Maximum Gain Configurations
The MAX4238 is a unity-gain stable amplifier with a
gain-bandwidth product (GBWP) of 1MHz. The MAX4239
is decompensated for a GBWP of 6.5MHz and is stable
with a gain of 10V/V. Unlike conventional operational
amplifiers, the MAX4238/MAX4239 have a maximum
gain specification. To maintain stability, set the gain of the
MAX4238 between AV = 1000V/V to 1V/V, and set the
gain of the MAX4239 between AV = 6700V/V and 10V/V.
1
OUT
+
*CONNECT EP TO GND.
MAX4238/
MAX4239
SHDN 1
MAX4238/
MAX4239
8
N.C.
IN- 2
7
VCC
3
6
OUT
GND 4
5
N.C.
IN+
SO
OUT 1
6
VCC
GND 2
5
SHDN
IN+ 3
4
IN-
SOT23
Error Budget Example
When using the MAX4238/MAX4239 as an ADC buffer,
the temperature drift should be taken into account when
determining the maximum input signal. With a typical offset
drift of 10nV/°C, the drift over a 10°C range is 100nV.
Setting this equal to 1/2LSB in a 16-bit system yields a
full-scale range of 13mV. With a single 2.7V supply, an
acceptable closed-loop gain is AV = 200. This provides
sufficient gain while maintaining headroom.
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Maxim Integrated │ 9
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Ordering Information
PART
PIN-PACKAGE
Selector Guide
TOP MARK
MAX4238ASA+
8 SO
MAX4238ASA+T
8 SO
MAX4238ATT+
6 TDFN-EP*
ANG
MAX4238ATT+T
6 TDFN-EP*
ANG
MAX4238AUT+
6 SOT23
AAZZ
MAX4238AUT+T
6 SOT23
AAZZ
MAX4238AUT/V+
6 SOT23
ACRW
MAX4238AUT/V+T
6 SOT23
ACRW
MAX4239ASA+
8 SO
MAX4239ASA+T
8 SO
MAX4239ATT+
6 TDFN-EP*
MAX4239ATT+T
6 TDFN-EP*
ANH
MAX4239AUT+
6 SOT23
ABAA
MAX4239AUT+T
6 SOT23
ABAA
MAX4239AUT/V+
6 SOT23
ACRX
MAX4239AUT/V+T
6 SOT23
ACRX
—
—
PART
MINIMUM STABLE
GAIN
GAIN
BANDWIDTH
(MHz)
MAX4238
1V/V
1
MAX4239
10V/V
6.5
Chip Information
PROCESS: BiCMOS
—
—
ANH
Note: All devices are specified over the -40°C to +125°C
operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
/V denotes an automotive-qualified part.
T Denotes tape-and-reel.
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Maxim Integrated │ 10
MAX4238/MAX4239
Ultra-Low Offset/Drift, Low-Noise,
Precision SOT23 Amplifiers
Revision History
REVISION
NUMBER
REVISION
DATE
2
5/06
PAGES
CHANGED
DESCRIPTION
—
—
3
8/11
Added MAX4238 and MAX4239 automotive-qualified parts
1
4
1/14
Updated the Typical Operating Characteristics
7
5
5/15
Added the Benefits and Features section
1
6
9/15
Deleted duplicate graph and updated scale
7
7
7/17
Correcting scale on TOC15–TOC18 x-axes
6
8
2/18
Added AEC qualification statement to Benefits and Features section
9
10/18
Updated Package Information and Ordering Information
10
12/20
Updated Ordering Information table
1
2, 3, 10
10
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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