FEATURES
DMICRO-SIZE, MINIATURE PACKAGES:
− Single: SOT23-5, SO-8
− Dual: MSOP-8, SO-8
− Quad: SSOP-16 (Obsolete)
DLOW OFFSET VOLTAGE: 750µV max
DWIDE SUPPLY RANGE:
− Single Supply: +2.7V to +36V
− Dual Supply: +1.35V to +18V
DLOW QUIESCENT CURRENT: 350µV max
DWIDE BANDWIDTH: 1.5MHz
APPLICATIONS
DBATTERY-POWERED INSTRUMENTS
DPORTABLE DEVICES
DPCMCIA CARDS
DMEDICAL INSTRUMENTS
DTEST EQUIPMENT
1
2
3
5
4
V+
−In
Out
V−
+In
OPA237
SOT23−5
DESCRIPTION
The OPA237 op amp family is one of Texas Instruments’
MicroAmplifier series of miniature products. In addition
to small size, these devices feature low offset voltage, low
quiescent current, low bias current, and a wide supply
range. Single, dual, and quad versions have identical
specifications for maximum design flexibility. They are
ideal for single-supply, battery-operated, and
space-limited applications, such as PCMCIA cards and
other portable instruments.
OPA237 series op amps can operate from either single or
dual supplies. When operated from a single supply, the
input common-mode range extends below ground and the
output can swing to within 10mV of ground. Dual and quad
designs feature completely independent circuitry for
lowest crosstalk and freedom from interaction.
Single, dual, and quad are offered in space-saving
surface-mount packages. The single version is available
in the ultra-miniature 5-lead SOT23-5 and SO-8
surface-mount. The dual version comes in a miniature
MSOP-8 and SO-8 surface-mount. The quad version is
obsolete. MSOP-8 has the same lead count as a SO-8 but
half the size. The SOT23-5 is even smaller at one-fourth
the size of an SO-8. All are specified for −40°C to +85°C
operation. A macromodel is available for design analysis.
1
2
3
4
8
7
6
5
V+
Out B
−In B
+In B
Out A
−In A
+In A
V−
OPA2237
SO−8, MSOP−8
A
B
1
2
3
4
8
7
6
5
NC
V+
Output
NC
NC
−In
+In
V−
OPA237
SO−8
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Out D
−In D
+In D
V−
+In C
−In C
Out C
NC
Out A
−In A
+In A
V+
+In B
−In B
Out B
NC
OPA4237
SSOP−16
AD
BC
MicroAmplifier is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
OPA237
OPA2237
OPA4237
SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
MicroAmplifierE Series
SSOP−16
Quad
(Obsolete)
SO−8
Single/Dual
MSOP Dual
SOT−23−5
Single
         
          
 !     !   
www.ti.com
Copyright 1996-2007, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
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2
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage, V+ to V− 36V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage (V−) −0.7V to (V+) +0.7V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Short-Circuit(2) Continuous. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range −55°C to +125°C. . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range −55°C to +125°C. . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature Range +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(1) Stresses above these ratings may cause permanent damage.
Exposure t o absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only , an d
functional operation of the device at these or any other conditions
beyond those specified is not implied.
(2) Short circuit to ground, one amplifier per package.
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be
handled with appropriate precautions. Failure to observe
proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
PACKAGE/ORDERING INFORMATION (1)
PRODUCT PACKAGE−LEAD PACKAGE DRAWING PACKAGE MARKING
Single
SOT23-5
DBV
A37A
OPA237NA
SOT23-5
DBV
A37A
OPA237UA SO-8 D OPA237UA
Dual
MSOP-8
DGK
B37A
OPA2237EA
MSOP-8
DGK
B37A
OPA2237UA SO-8 D OPA2237UA
Quad(2)
SSOP-16
DBQ
OPA4237UA
OPA4237UA
SSOP-16
DBQ
OPA4237UA
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website
at www.ti.com.
(2) Quad version is obsolete.
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3
ELECTRICAL CHARACTERISTICS: VS = +5V
Boldface limits apply over the specified temperature range, TA = −40°C to +85°C.
At TA = +25°C, VS = +5V, RL = 10kΩ, connected to VS/2, unless otherwise noted.
OPA237UA, NA
OPA2237UA, EA
OPA4237UA
PARAMETER CONDITIONS MIN TYP MAX UNITS
OFFSET VOLTAGE
Input Offset Voltage VCM = 2.5V ±250 ±750 µV
vs Temperature(1) Specified Temperature Range +2+5µV/°C
vs Power Supply (PSRR) VS = +2.7V to +36V 10 30 µV/V
Channel Separation (dual and quad) 0.5 µV/V
INPUT BIAS CURRENT
Input Bias Current(2) VCM = 2.5V −10 −40 nA
Input Offset Current VCM = 2.5V ±0.5 ±10 nA
NOISE
Input Voltage Noise, f = 0.1 to 10Hz 1µVPP
Input Voltage Noise Density , f = 1kHz 28 nV/√Hz
Current Noise Density, f = 1kHz 60 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range −0.2 (V+) −1.5 V
Common-Mode Rejection Ratio VCM = −0.2V to 3.5V 78 86 dB
INPUT IMPEDANCE
Differential 5 • 106 || 4 Ω || pF
Common-Mode 5 • 109 || 2 Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain VO = 0.5V to 4V 80 88 dB
FREQUENCY RESPONSE
Gain-Bandwidth Product 1.4 MHz
Slew Rate G = 1 0.5 V/µs
Settling Time, 0.1% G = −1, 3V Step, CL = 100pF 11 µs
0.01% G = −1, 3V Step, CL = 100pF 16 µs
OUTPUT
Voltage Output, Positive RL = 100kΩ to Ground (V+) −1 (V+) −0.75 V
Negative RL = 100kΩ to Ground 0.01 0.001 V
Positive RL = 100kΩ to 2.5V (V+) −1 (V+) −0.75 V
Negative RL = 100kΩ to 2.5V 0.12 0.04 V
Positive RL = 10kΩ to 2.5V (V+) −1 (V+) −0.75 V
Negative RL = 10kΩ to 2.5V 0.5 0.35 V
Short-Circuit Current −10/+4 mA
Capacitive Load Drive (stable operation) See Typical Characteristic Curves
POWER SUPPLY
Specified Operating Voltage +5 V
Operating Range +2.7 +36 V
Quiescent Current (per amplifier) 170 350 µA
TEMPERATURE RANGE
Specified Range −40 +85 °C
Operating Range −55 +125 °C
Storage Range −55 +125 °C
Thermal Resistance, qJA
SOT23-5 200 °C/W
MSOP-8 150 °C/W
SSOP-16 (Obsolete) 150 °C/W
SO-8 150 °C/W
(1) Specified by wafer-level test to 95% confidence.
(2) Positive conventional current flows into the input terminals.
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4
ELECTRICAL CHARACTERISTICS: VS = +2.7V
Boldface limits apply over the specified temperature range, TA = −40°C to +85°C.
At TA = +25°C, VS = +2.7V , RL = 10kΩ, connected to VS/2, unless otherwise noted.
OPA237UA, NA
OPA2237UA, EA
OPA4237UA
PARAMETER CONDITIONS MIN TYP MAX UNITS
OFFSET VOLTAGE
Input Offset Voltage VCM = 1V ±250 ±750 µV
vs Temperature(1) Specified Temperature Range +2+5µV/°C
vs Power Supply (PSRR) VS = +2.7V to +36V 10 30 µV/V
Channel Separation (dual and quad) 0.5 µV/V
INPUT BIAS CURRENT
Input Bias Current(2) VCM = 1V −10 −40 nA
Input Offset Current VCM = 1V ±0.5 ±10 nA
NOISE
Input Voltage Noise, f = 0.1 to 10Hz 1µVPP
Input Voltage Noise Density , f = 1kHz 28 nV/√Hz
Current Noise Density, f = 1kHz 60 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range −0.2 (V+) −1.5 V
Common-Mode Rejection Ratio VCM = −0.2V to 1.2V 75 85 dB
INPUT IMPEDANCE
Differential 5 • 106 || 4 Ω || pF
Common-Mode 5 • 109 || 2 Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain VO = 0.5V to 1.7V 80 88 dB
FREQUENCY RESPONSE
Gain-Bandwidth Product 1.2 MHz
Slew Rate G = 1 0.5 V/µs
Settling Time, 0.1% G = −1, 1V Step, CL = 100pF 5µs
0.01% G = −1, 1V Step, CL = 100pF 8µs
OUTPUT
Voltage Output, Positive RL = 100kΩ to Ground (V+) −1 (V+) −0.75 V
Negative RL = 100kΩ to Ground 0.01 0.001 V
Positive RL = 100kΩ to 1.35V (V+) −1 (V+) −0.75 V
Negative RL = 100kΩ to 1.35V 0.06 0.02 V
Positive RL = 10kΩ to 1.35V (V+) −1 (V+) −0.75 V
Negative RL = 10kΩ to 1.35V 0.3 0.2 V
Short-Circuit Current −5/+3.5 mA
Capacitive Load Drive (stable operation) See Typical Characteristic Curves
POWER SUPPLY
Specified Operating Voltage +2.7 V
Operating Range +2.7 +36 V
Quiescent Current (per amplifier) 160 350 µA
TEMPERATURE RANGE
Specified Range −40 +85 °C
Operating Range −55 +125 °C
Storage Range −55 +125 °C
Thermal Resistance, qJA
SOT23-5 200 °C/W
MSOP-8 150 °C/W
SSOP-16 (Obsolete) 150 °C/W
SO-8 150 °C/W
(1) Specified by wafer-level test to 95% confidence.
(2) Positive conventional current flows into the input terminals.
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5
ELECTRICAL CHARACTERISTICS: VS = +15V
Boldface limits apply over the specified temperature range, TA = −40°C to +85°C.
At TA = +25°C, VS = ±15V , RL = 10kΩ, connected to VS/2, unless otherwise noted.
OPA237UA, NA
OPA2237UA, EA
OPA4237UA
PARAMETER CONDITIONS MIN TYP MAX UNITS
OFFSET VOLTAGE
Input Offset Voltage VCM = 0V ±350 ±950 µV
vs Temperature(1) Specified Temperature Range +2.5 +7µV/°C
vs Power Supply (PSRR) VS = ±1.35V to ±18V 10 30 µV/V
Channel Separation (dual and quad) 0.5 µV/V
INPUT BIAS CURRENT
Input Bias Current(2) VCM = 0V −8.5 −40 nA
Input Offset Current VCM = 0V ±0.5 ±10 nA
NOISE
Input Voltage Noise, f = 0.1 to 10Hz 1µVPP
Input Voltage Noise Density , f = 1kHz 28 nV/√Hz
Current Noise Density, f = 1kHz 60 fA/√Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range (V−)−0.2 (V+) −1. 5 V
Common-Mode Rejection Ratio VCM = −15V to 13.5V 80 90 dB
INPUT IMPEDANCE
Differential 5 • 106 || 4 Ω || pF
Common-Mode 5 • 109 || 2 Ω || pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain VO = −14V to 13.8V 80 88 dB
FREQUENCY RESPONSE
Gain-Bandwidth Product 1.5 MHz
Slew Rate G = 1 0.5 V/µs
Settling Time, 0.1% G = −1, 10V Step, CL = 100pF 18 µs
0.01% G = −1, 10V Step, CL = 100pF 21 µs
OUTPUT
Voltage Output, Positive RL = 100kΩ(V+) −1.2 (V+) −0.9 V
Negative RL = 100kΩ(V−) +0.5 (V−) +0.3 V
Positive RL = 10kΩ(V+) −1.2 (V+) −0.9 V
Negative RL = 10kΩ(V−) +1 (V−) +0.85 V
Short-Circuit Current −8/+4.5 mA
Capacitive Load Drive (stable operation) See Typical Characteristic Curves
POWER SUPPLY
Specified Operating Range ±15 V
Operating Range ±1.35 ±18 V
Quiescent Current (per amplifier) ±200 ±475 µA
TEMPERATURE RANGE
Specified Range −40 +85 °C
Operating Range −55 +125 °C
Storage Range −55 +125 °C
Thermal Resistance, qJA
SOT23-5 200 °C/W
MSOP-8 150 °C/W
SSOP-16 (Obsolete) 150 °C/W
SO-8 150 °C/W
(1) Specified by wafer-level test to 95% confidence.
(2) Positive conventional current flows into the input terminals.
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6
TYPICAL CHARACTERISTICS
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
OPEN−LOOP GAIN/PHASE vs FREQUENCY
1
100
80
60
40
20
0
−20
Voltage Gain (dB)
0
−45
−90
−135
−180
Phase (
_
)
Frequency (Hz)
10 100 1k 10k 100k 1M 10M
CL= 100pF
VS=±15V
VS= +2.7V, +5V
Φ
G
POWER SUPPLY and COMMON−MODE REJECTION
vs FREQUENCY
120
100
80
60
40
20
0
PSR, CMR (dB)
Frequency (Hz)
10 100 1k 10k 100k 1M 10M
+PSR (VS=+5V,±15V)
CMR (VS= +2.7V, +5V or ±15V)
+PSR
(VS= +2.7V)
−PSR
(VS=±15V)
INPUT NOISE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1
1k
100
10
Voltage Noise (nV/√Hz)
Current Noise (fA/√Hz)
Frequency (Hz)
10 100 1k 10k 100k
Current Noise
Voltage Noise
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
Channel Separation (dB)
130
120
110
100
90
80 10 100 1k 10k 100k
Dual and quad devices.
G = 1, all channels.
Quad measured channel
AtoDorBtoC
other
combinations yield improved
rejection.
INPUT BIAS CURRENT vs TEMPERATURE
Temperature (_C)
Input Bias Current (nA)
14
12
10
8
6
4
−75 −50 −25 0 25 50 75 100 125
VS= +2.7V, +5V
VS=±15V
INPUT BIAS CURRENT
vs INPUT COMMON−MODE VOLTAGE
−12
−11
−10
−9
−8
−7
−6
Input Bias Current (nA)
Common−Mode Voltage (V)
−15 −10 −50 51015
VS=±15V
VS=+5V
VS= +2.7V
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7
TYPICAL CHARACTERISTICS (Continued)
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
Percent of Amplifiers (%)
Offset Voltage (µV)
−750
−650
−550
−450
−350
−250
−150
−50
50
150
250
350
450
550
650
750
12.5
10
7.5
5
2.5
0
0.2% 0.4%
0.7%
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
VS= +2.7V, +5V
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
Percent of Amplifiers (%)
Offset Voltage (µV)
−950
−850
−750
−650
−550
−450
−350
−250
−150
−50
50
150
250
350
450
550
650
750
850
950
9
8
7
6
5
4
3
2
1
0
VS=±15V
0.1% 0.1%
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
Percent of Amplifiers (%)
Offset Voltage Drift (µV/_C)
0.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.5
11.5
30
25
20
15
10
5
0
0.2% 0.2%
VS=+2.7V Typical production
distribution of packaged
units. Single, dual,
and quad units included.
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
Percent of Amplifiers (%)
Offset Voltage Drift (µV/_C)
16
14
12
10
8
6
4
2
0
0.5
1.5
2
1
3
3.5
2.5
4
4.5
5
5.5
6
6.5
7
8
7.5
VS=+5V
0.4%
0.6% 0.2%
0.2%
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
Percent of Amplifiers (%)
Offset Voltage Drift (µV/_C)
12
10
8
6
4
2
0
0.5
1.5
2
1
3
3.5
2.5
4
4.5
5
5.5
6
6.5
7
8
7.5
VS=±15V
0.4%
0.4% 0.2%
Typical production
distribution of packaged
units. Single, dual,
and quad units included. VS= +2.7V, +5V, ±15V
VS= +2.7V, +5V VS=±15V
VS=±15V
CMR
AOL
PSR
AOL, CMR, PSR vs TEMPERATURE
Temperature (_C)
AOL,CMR,PSR(dB)
120
110
100
90
80
70
60−75 −50 −25 0 25 50 75 100 125
VS= +2.7V, +5V
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8
TYPICAL CHARACTERISTICS (Continued)
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
SMALL−SIGNAL STEP RESPONSE
(G = 1, CL= 100pF, VS=+5V)
20mV/div
1µs/div
SMALL−SIGNAL STEP RESPONSE
(G = 1, CL= 220pF, VS=+5V)
20mV/div
2µs/div
LARGE−SIGNAL STEP RESPONSE
(G = 1, CL= 100pF, VS=+5V)
1V/div
10µs/div
SETTLING TIME vs GAIN
Gain (V/V)
Settling Time (µs)
100
10
1−1−10 −100
0.01%
0.1%
VS=+2.7V,
1V Step
VS=±15V,
10V Step
VS=+5V,
3V Step
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
V+
(V+) −0.5
(V+) −1
(V+) −1.5
(V+) −2
(V−)+2
(V−)+1.5
(V−)+1
(V−)+0.5
V−012345
OutputCurrent (mA)
Output Voltage Swing (V)
+125_C+25_C
−55_C+125_C
+25_C
+125_C−55_C
Sinking Current
Sourcing Current
70
60
50
40
30
20
10
010 100 1k 10k
Load Capacitance (pF)
Overshoot (%)
SMALL−SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
G=+1,V
S= +2.7V, +5V
G=+1,V
S=±15V
G=−1, VS=±15V
G=−2, VS= +2.7V, +5V
G=−10, VS= +2.7V,
+5V, ±15V
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9
TYPICAL CHARACTERISTICS (Continued)
At TA = +25°C and RL = 10kΩ, unless otherwise noted.
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
1M100k
Frequency (Hz)
1k 10k
30
25
20
15
10
5
0
Output Voltage (VPP)
Maximum output voltage
without slew−rate induced
distortion
VS=±15V
VS=+5V
VS=+2.7V
QUIESCENT CURRENT vs TEMPERATURE
Temperature (_C)
Quiescent Current (µA)
300
250
200
150
100
50−75 −50 −25 0 25 50 75 100 125
VS=+5V VS= +2.7V
VS=±15V
SHORT−CIRCUIT CURRENT vs TEMPERATURE
Temperature (_C)
Short−Circuit Current (mA)
12
10
8
6
4
2
0
−75 −50 −25 0 25 50
ISC
−
ISC
+
75 100 125
VS=+2.7V
VS=+5V
VS=±15V VS=+2.7V
VS=±15V VS=+5V
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SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
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10
APPLICATION INFORMATION
OPA237 series op amps are unity-gain stable and suitable
for a wide range of general-purpose applications. Power
supply pins should be bypassed with 10nF ceramic
capacitors.
OPERATING VOLTAGE
OPA237 series op amps operate from single (+2.7V to
+36V) or dual (±1.35V to ±18V) supplies with excellent
performance. Most behavior remains unchanged
throughout the full operating voltage range. Parameters
which vary significantly with operating voltage are shown
in typical performance curves. Specifications are
production tested with +2.7V, +5V, and ±15V supplies.
OUTPUT CURRENT AND STABILITY
OPA237 series op amps can drive large capacitive loads.
However, under certain limited output conditions any op
amp may become unstable. Figure 1 shows the region
where the OPA237 has a potential for instability. These
load conditions are rarely encountered, especially for
single supply applications. For example, take the case
when a +5V supply with a 10kΩ load to VS/2 is used.
OPA237 series op amps remain stable with capacitive
loads up to 4,000pF, if sinking current and up to 10,000pF,
if sourcing current. Furthermore, in single-supply
applications where the load is connected to ground, the op
amp is only sourcing current, and as shown Figure 1, can
drive 10,000pF with output currents up to 1.5mA.
20.5 1 1.5
Output Current (mA)
−2−1.5 −1−0.5 0
100k
10k
1k
100
10
Capacitive Load (pF)
VS= +2.7V
VS=+5V,±15V
OPERATION NOT
RECOMMENDED
Figure 1. Stability-Capacitive Load vs Output
Current
RL
10Ω
A1
OPA237
+
R1
38.3kΩ
R3
38.3kΩ
R5
383kΩ
R6
10kΩR7
9.09kΩ
R4
20kΩR2
19.1kΩ
A2
OPA237
R8
100kΩ
RH
10Ω
IH
V+
V−
V+
V−
2.7V to = ±15V
V+ for A1,A
2
−In
+In
−In
+In VO=10•IH•RH
To Load
To Load
VO=10•IL•RL
Common−mode range of A2
extends to V−for low−side sensing
Optional for IBCancellation
(R7=R
6II R8)
R2and R4divide down the
common−mode input to A1.
Low−Side
Current Sense
High−Side
Current Sense
Out
Out
NOTE: Low and high−side sensing circuits can be used independently.
V−for A1,A
2
IL
Figure 2. Low and High-Side Battery Current Sensing
PACKAGE OPTION ADDENDUM
www.ti.com 16-Aug-2012
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
OPA2237EA/250 ACTIVE VSSOP DGK 8 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237EA/250G4 ACTIVE VSSOP DGK 8 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237EA/2K5 ACTIVE VSSOP DGK 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237EA/2K5G4 ACTIVE VSSOP DGK 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237UA ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237UA/2K5 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237UA/2K5E4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA2237UAE4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA237NA/250 ACTIVE SOT-23 DBV 5 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
OPA237NA/250E4 ACTIVE SOT-23 DBV 5 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
OPA237NA/3K ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
OPA237NA/3KE4 ACTIVE SOT-23 DBV 5 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
OPA237UA ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA237UA/2K5 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA237UA/2K5G4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA237UAG4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-3-260C-168 HR
OPA4237UA/250 OBSOLETE SSOP DBQ 16 TBD Call TI Call TI
OPA4237UA/2K5 OBSOLETE SSOP DBQ 16 TBD Call TI Call TI
PACKAGE OPTION ADDENDUM
www.ti.com 16-Aug-2012
Addendum-Page 2
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
OPA2237EA/250 VSSOP DGK 8 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1
OPA2237EA/2K5 VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1
OPA2237UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
OPA237NA/250 SOT-23 DBV 5 250 180.0 8.4 3.2 3.1 1.39 4.0 8.0 Q3
OPA237NA/3K SOT-23 DBV 5 3000 180.0 8.4 3.2 3.1 1.39 4.0 8.0 Q3
OPA237UA/2K5 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 16-Aug-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
OPA2237EA/250 VSSOP DGK 8 250 210.0 185.0 35.0
OPA2237EA/2K5 VSSOP DGK 8 2500 367.0 367.0 35.0
OPA2237UA/2K5 SOIC D 8 2500 367.0 367.0 35.0
OPA237NA/250 SOT-23 DBV 5 250 210.0 185.0 35.0
OPA237NA/3K SOT-23 DBV 5 3000 210.0 185.0 35.0
OPA237UA/2K5 SOIC D 8 2500 367.0 367.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 16-Aug-2012
Pack Materials-Page 2
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