SO−8
Single/Dual
SSOP−16
Quad
(Obsolete)
SOT−23−5
Single
MSOP Dual
OPA237
OPA2237
OPA4237
SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
MicroAmplifierE
Series
FEATURES
D
MICRO-SIZE, MINIATURE PACKAGES:
− Single: SOT23-5, SO-8
− Dual: MSOP-8, SO-8
− Quad: SSOP-16 (Obsolete)
LOW OFFSET VOLTAGE: 750µV max
− Single Supply: +2.7V to +36V
− Dual Supply:
+1.35V
to
+18V
LOW QUIESCENT CURRENT: 350µV max
WIDE BANDWIDTH: 1.5MHz
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 The quad version is
obsolete.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.
D
D
WIDE SUPPLY RANGE:
D
D
APPLICATIONS
D
D
D
D
D
BATTERY-POWERED INSTRUMENTS
PORTABLE DEVICES
PCMCIA CARDS
MEDICAL INSTRUMENTS
TEST EQUIPMENT
OPA237
Out
V−
+In
1
2
3
4
−In
5
V+
SOT23−5
OPA4237
Out A
OPA237
NC
−
In
+In
V−
1
2
3
4
SO−8
8
7
6
5
NC
V+
Output
NC
OPA2237
Out A
−
In A
+In A
V−
1
2
3
4
SO−8, MSOP−8
NC
8
SSOP−16
9
NC
A
B
8
7
6
5
V+
Out B
−In
B
+In B
−In
A
+In A
V+
+In B
−In
B
Out B
1
2
A
3
4
5
B
6
7
C
11
10
D
14
13
12
+In D
V
−
+In C
−In
C
Out C
16
15
Out D
−In
D
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.
MicroAmplifier is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
1996-2007, Texas Instruments Incorporated
www.ti.com
OPA237
OPA2237
OPA4237
SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
www.ti.com
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
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.
(1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods
may degrade device reliability. These are stress ratings only, and
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.
PACKAGE/ORDERING INFORMATION
(1)
PRODUCT
Single
OPA237NA
OPA237UA
Dual
OPA2237EA
OPA2237UA
Quad
(2)
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.
MSOP-8
SO-8
DGK
D
B37A
OPA2237UA
SOT23-5
SO-8
DBV
D
A37A
OPA237UA
PACKAGE−LEAD
PACKAGE DRAWING
PACKAGE MARKING
2
www.ti.com
OPA237
OPA2237
OPA4237
SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS: V
S
= +5V
Boldface
limits apply over the specified temperature range,
T
A
= −40°C to +85°C.
At T
A
= +25°C, V
S
= +5V, R
L
= 10kΩ, connected to V
S
/2, unless otherwise noted.
OPA237UA, NA
OPA2237UA, EA
OPA4237UA
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
vs Temperature
(1)
vs Power Supply (PSRR)
Channel Separation (dual and quad)
INPUT BIAS CURRENT
Input Bias Current
(2)
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1 to 10Hz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
G=1
G = −1, 3V Step, C
L
= 100pF
G = −1, 3V Step, C
L
= 100pF
R
L
= 100kΩ to Ground
R
L
= 100kΩ to Ground
R
L
= 100kΩ to 2.5V
R
L
= 100kΩ to 2.5V
R
L
= 10kΩ to 2.5V
R
L
= 10kΩ to 2.5V
(V+) −1
0.01
(V+) −1
0.12
(V+) −1
0.5
1.4
0.5
11
16
MHz
V/µs
µs
µs
V
O
= 0.5V to 4V
80
88
dB
5
•
106 || 4
5
•
109 || 2
Ω
|| pF
Ω
|| pF
V
CM
= −0.2V to 3.5V
−0.2
78
86
(V+) −1.5
V
dB
1
28
60
µV
PP
nV/√Hz
fA/√Hz
V
CM
= 2.5V
V
CM
= 2.5V
−10
±0.5
−40
±10
nA
nA
V
CM
= 2.5V
Specified Temperature Range
V
S
= +2.7V to +36V
±250
+2
10
0.5
±750
+5
30
µV
µ
V/
°
C
µ
V/V
µ
V/V
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Voltage Output, Positive
Negative
Positive
Negative
Positive
Negative
Short-Circuit Current
Capacitive Load Drive (stable operation)
POWER SUPPLY
Specified Operating Voltage
Operating Range
Quiescent Current (per amplifier)
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance,
q
JA
SOT23-5
MSOP-8
SSOP-16 (Obsolete)
SO-8
(1) Specified by wafer-level test to 95% confidence.
(2) Positive conventional current flows into the input terminals.
200
150
150
150
°C/W
°C/W
°C/W
°C/W
−40
−55
−55
+85
+125
+125
°C
°C
°C
+2.7
170
+5
+36
350
V
V
µA
(V+) −0.75
0.001
(V+) −0.75
0.04
(V+) −0.75
0.35
−10/+4
See Typical Characteristic Curves
V
V
V
V
V
V
mA
3
OPA237
OPA2237
OPA4237
SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V
Boldface
limits apply over the specified temperature range,
T
A
= −40°C to +85°C.
At T
A
= +25°C, V
S
= +2.7V , R
L
= 10kΩ, connected to V
S
/2, unless otherwise noted.
OPA237UA, NA
OPA2237UA, EA
OPA4237UA
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
vs Temperature
(1)
vs Power Supply (PSRR)
Channel Separation (dual and quad)
INPUT BIAS CURRENT
Input Bias Current
(2)
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1 to 10Hz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
G=1
G = −1, 1V Step, C
L
= 100pF
G = −1, 1V Step, C
L
= 100pF
R
L
= 100kΩ to Ground
R
L
= 100kΩ to Ground
R
L
= 100kΩ to 1.35V
R
L
= 100kΩ to 1.35V
R
L
= 10kΩ to 1.35V
R
L
= 10kΩ to 1.35V
(V+) −1
0.01
(V+) −1
0.06
(V+) −1
0.3
1.2
0.5
5
8
MHz
V/µs
µs
µs
V
O
= 0.5V to 1.7V
80
88
dB
5
•
106 || 4
5
•
109 || 2
Ω
|| pF
Ω
|| pF
V
CM
= −0.2V to 1.2V
−0.2
75
85
(V+) −1.5
V
dB
1
28
60
µV
PP
nV/√Hz
fA/√Hz
V
CM
= 1V
V
CM
= 1V
−10
±0.5
−40
±10
nA
nA
V
CM
= 1V
Specified Temperature Range
V
S
= +2.7V to +36V
±250
+2
10
0.5
±750
+5
30
µV
µ
V/
°
C
µ
V/V
µ
V/V
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Voltage Output, Positive
Negative
Positive
Negative
Positive
Negative
Short-Circuit Current
Capacitive Load Drive (stable operation)
POWER SUPPLY
Specified Operating Voltage
Operating Range
Quiescent Current (per amplifier)
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance,
q
JA
SOT23-5
MSOP-8
SSOP-16 (Obsolete)
SO-8
(1) Specified by wafer-level test to 95% confidence.
(2) Positive conventional current flows into the input terminals.
200
150
150
150
°C/W
°C/W
°C/W
°C/W
−40
−55
−55
+85
+125
+125
°C
°C
°C
+2.7
160
+2.7
+36
350
V
V
µA
(V+) −0.75
0.001
(V+) −0.75
0.02
(V+) −0.75
0.2
−5/+3.5
See Typical Characteristic Curves
V
V
V
V
V
V
mA
4
www.ti.com
OPA237
OPA2237
OPA4237
SBOS057A − OCTOBER 1996 − REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS: V
S
=
+15V
Boldface
limits apply over the specified temperature range,
T
A
= −40°C to +85°C.
At T
A
= +25°C, V
S
=
±15V
, R
L
= 10kΩ, connected to V
S
/2, unless otherwise noted.
OPA237UA, NA
OPA2237UA, EA
OPA4237UA
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
vs Temperature
(1)
vs Power Supply (PSRR)
Channel Separation (dual and quad)
INPUT BIAS CURRENT
Input Bias Current
(2)
Input Offset Current
NOISE
Input Voltage Noise, f = 0.1 to 10Hz
Input Voltage Noise Density, f = 1kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
G=1
G = −1, 10V Step, C
L
= 100pF
G = −1, 10V Step, C
L
= 100pF
R
L
= 100kΩ
R
L
= 100kΩ
R
L
= 10kΩ
R
L
= 10kΩ
(V+) −1.2
(V−) +0.5
(V+) −1.2
(V−) +1
1.5
0.5
18
21
MHz
V/µs
µs
µs
V
O
= −14V to 13.8V
80
88
dB
5
•
106 || 4
5
•
109 || 2
Ω
|| pF
Ω
|| pF
V
CM
= −15V to 13.5V
(V−)−0.2
80
90
(V+) −1.5
V
dB
1
28
60
µV
PP
nV/√Hz
fA/√Hz
V
CM
= 0V
V
CM
= 0V
−8.5
±0.5
−40
±10
nA
nA
V
CM
= 0V
Specified Temperature Range
V
S
=
±1.35V
to
±18V
±350
+2.5
10
0.5
±950
+7
30
µV
µ
V/
°
C
µ
V/V
µ
V/V
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Voltage Output, Positive
Negative
Positive
Negative
Short-Circuit Current
Capacitive Load Drive (stable operation)
POWER SUPPLY
Specified Operating Range
Operating Range
Quiescent Current (per amplifier)
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance,
q
JA
SOT23-5
MSOP-8
SSOP-16 (Obsolete)
SO-8
(1) Specified by wafer-level test to 95% confidence.
(2) Positive conventional current flows into the input terminals.
200
150
150
150
°C/W
°C/W
°C/W
°C/W
−40
−55
−55
+85
+125
+125
°C
°C
°C
±1.35
±200
±15
±18
±475
V
V
µA
(V+) −0.9
(V−) +0.3
(V+) −0.9
(V−) +0.85
−8/+4.5
See Typical Characteristic Curves
V
V
V
V
mA
5
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