®
OPA
OPA
OPA
OPA
2234
234
OPA234
OPA2234
OPA4234
423
4
OPA
234
2234
OPA
423
OPA23
4
4
For most current data sheet and other product
information, visit www.burr-brown.com
Low Power, Precision
SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
FEATURES
OPA234
● WIDE SUPPLY RANGE:
Single Supply: VS = +2.7V to +36V
Dual Supply: VS = ±1.35V to ±18V
● GUARANTEED PERFORMANCE:
+2.7V, +5V, and ±15V
● LOW QUIESCENT CURRENT: 250µA/amp
● LOW INPUT BIAS CURRENT: 25nA max
● LOW OFFSET VOLTAGE: 100µV max
● HIGH CMRR, PSRR, and AOL
● SINGLE, DUAL, and QUAD VERSIONS
Offset Trim
1
8
NC
–In
2
7
V+
+In
3
6
Output
V–
4
5
Offset Trim
8-Pin DIP, SO-8, MSOP-8
OPA2234
DESCRIPTION
The OPA234 series low cost op amps are ideal for
single supply, low voltage, low power applications. The
series provides lower quiescent current than older
“1013”-type products and comes in current industrystandard packages and pinouts. The combination of low
offset voltage, high common-mode rejection, high power
supply rejection, and a wide supply range provides
excellent accuracy and versatility. Single, dual, and
quad versions have identical specifications for maximum design flexibility. These general purpose op amps
are ideal for portable and battery powered applications.
OPA234 series op amps operate from either single or
dual supplies. In single supply operation, the input common-mode range extends below ground and the output
can swing to within 50mV of ground. Excellent phase
margin makes the OPA234 series ideal for demanding
applications, including high load capacitance. Dual and
quad designs feature completely independent circuitry
for lowest crosstalk and freedom from interaction.
Single version packages are DIP-8, SO-8 surface-mount,
and a space-saving MSOP-8 surface-mount. Dual packages are DIP-8 and SO-8 surface-mount. Quad packages are DIP-14 and SO-14 surface-mount. All are
specified for –40°C to +85°C operation.
Out A
–In A
1
A
2
+In A
3
V–
4
B
8
V+
7
Out B
6
–In B
5
+In B
8-Pin DIP, SO-8
OPA4234
Out A
1
–In A
2
A
14
Out D
13
–In D
D
+In A
3
12
+In D
V+
4
11
V–
+In B
5
10
+In C
B
C
–In B
6
9
–In C
Out B
7
8
Out C
14-Pin DIP
SO-14
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
© 1996 Burr-Brown Corporation
SBOS055
1
PDS-1318B
Printed
in U.S.A., May, 2000
OPA234, 2234,
4234
SPECIFICATIONS: VS = +5V
At TA = 25°C, VS = +5V, RL = 10kΩ connected to VS /2 and VOUT = VS /2, unless otherwise noted.
OPA234PA, UA, EA
OPA2234PA, UA
OPA4234PA, UA, U
OPA234P, U, E
OPA2234P, U
PARAMETER
CONDITION
OFFSET VOLTAGE
Input Offset Voltage
OPA234E, EA
vs Temperature(1)
vs Power Supply
vs Time
Channel Separation (Dual, Quad)
dVOS/dT
PSRR
INPUT BIAS CURRENT
Input Bias Current(2)
Input Offset Current
MAX
Operating Temperature Range
VS = +2.7V to +30V, VCM = 1.7V
±40
±100
±0.5
3
0.2
0.3
VCM = 2.5V
VCM = 2.5V
–15
±1
VCM = 2.5V
IB
IOS
NOISE
Input Voltage Noise Density
Current Noise Density
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
TYP
VOS
MIN
MIN
TYP
MAX
UNITS
±100
±150
±3
10
✻
✻
✻
✻
✻
✻
±250
±350
✻
20
µV
µV
µV/°C
µV/V
µV/mo
µV/V
–30
±5
✻
✻
–50
✻
nA
nA
f = 1kHz
CMRR
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time: 0.1%
0.01%
Overload Recovery Time
VO = 0.25V to 4V
RL = 10kΩ
RL = 2kΩ
AOL
TEMPERATURE RANGE
Specified Range
Operating Range
Storage
Thermal Resistance
8-Pin DIP
SO-8 Surface-Mount
MSOP-8 Surface-Mount
14-Pin DIP
SO-14 Surface-Mount
108
86
CL = 100pF
GBW
SR
(V+) –1
106
✻
86
107 || 5
1010 || 6
VCM = 2.5V
RL = 10kΩ to VS /2
RL = 10kΩ to VS /2
RL = 10kΩ to Ground
RL = 10kΩ to Ground
120
96
100
86
0.35
0.2
15
25
16
G = 1, 3V Step, CL = 100pF
G = 1, 3V Step, CL = 100pF
(VIN) (Gain) = VS
OUTPUT
Voltage Output: Positive
Negative
Positive
Negative
Short-Circuit Current
ISC
Capacitive Load Drive (Stable Operation)(3)
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
–0.1
91
VCM = –0.1V to 4V
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
✻
✻
25
80
vn
in
(V+) –1
0.25
(V+) –1
0.1
G = +1
✻
✻
✻
✻
(V+) –0.65
0.05
(V+) –0.65
0.05
±11
1000
IQ
IO = 0
250
–40
–40
–55
✻
✻
V
dB
✻
✻
Ω || pF
Ω || pF
✻
✻
dB
dB
✻
✻
✻
✻
✻
MHz
V/µs
µs
µs
µs
✻
✻
✻
✻
✻
✻
V
V
V
V
mA
pF
✻
+5
+2.7
+36
300
✻
+85
+125
+125
✻
✻
✻
✻
θJA
100
150
220
80
110
nV/√Hz
fA/√Hz
✻
✻
✻
✻
✻
✻
✻
V
V
µA
✻
✻
✻
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
✻ Specifications same as OPA234P,U,E.
NOTES: (1) Guaranteed by wafer-level test to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See “Small-Signal Overshoot
vs Load Capacitance” typical curve.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
OPA234, 2234, 4234
2
SPECIFICATIONS: VS = +2.7V
At TA = 25°C, VS = +2.7V, RL = 10kΩ connected to VS /2 and VOUT = VS /2, unless otherwise noted.
OPA234PA, UA, EA
OPA2234PA, UA
OPA4234PA, UA, U
OPA234P, U, E
OPA2234P, U
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
OPA234E, EA
vs Temperature(1)
vs Power Supply
vs Time
Channel Separation (Dual, Quad)
CONDITION
VOS
dVOS/dT
PSRR
INPUT BIAS CURRENT
Input Bias Current(2)
Input Offset Current
IB
IOS
NOISE
Input Voltage Noise Density
Current Noise Density
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
MIN
TYP
MAX
Operating Temperature Range
VS = +2.7V to +30V, VCM = 1.7V
±40
±100
±0.5
3
0.2
0.3
VCM = 1.35V
VCM = 1.35V
–15
±1
VCM = 1.35V
MIN
TYP
MAX
UNITS
±100
±150
±3
10
✻
✻
✻
✻
✻
✻
±250
±350
✻
20
µV
µV
µV/°C
µV/V
µV/mo
µV/V
–30
±5
✻
✻
–50
✻
nA
n
f = 1kHz
CMRR
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%
Overload Recovery Time
GBW
SR
TEMPERATURE RANGE
Specified Range
Operating Range
Storage
Thermal Resistance
8-Pin DIP
SO-8 Surface-Mount
MSOP-8 Surface-Mount
14-Pin DIP
SO-14 Surface-Mount
(V+) –1
106
✻
86
107 || 5
1010 || 6
VO = 0.25V to 1.7V
RL = 10kΩ
RL = 2kΩ
108
86
CL = 100pF
RL = 10kΩ to VS /2
RL = 10kΩ to VS /2
RL = 10kΩ to Ground
RL = 10kΩ to Ground
125
96
100
86
0.35
0.2
6
16
8
G = 1, 1V Step, CL = 100pF
G = 1, 1V Step, CL = 100pF
(VIN) (Gain) = VS
OUTPUT
Voltage Output: Positive
Negative
Positive
Negative
Short-Circuit Current
ISC
Capacitive Load Drive (Stable Operation)(3)
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
–0.1
91
VCM = –0.1V to 1.7V
VCM = 1.35V
AOL
✻
✻
25
80
vn
in
(V+) –1
0.25
(V+) –1
0.1
G = +1
✻
✻
✻
✻
(V+) –0.6
0.05
(V+) –0.65
0.05
±8
1000
IQ
IO = 0
250
–40
–40
–55
✻
✻
V
dB
✻
✻
Ω || pF
Ω || pF
✻
✻
dB
dB
✻
✻
✻
✻
✻
MHz
V/µs
µs
µs
µs
✻
✻
✻
✻
✻
✻
V
V
V
V
mA
pF
✻
+2.7
+2.7
+36
300
✻
+85
+125
+125
✻
✻
✻
✻
θJA
100
150
220
80
110
nV/√Hz
fA/√Hz
✻
✻
✻
✻
✻
✻
✻
V
V
µA
✻
✻
✻
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
✻ Specifications same as OPA234P,U,E.
NOTES: (1) Guaranteed by wafer-level test to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See “Small-Signal Overshoot
vs Load Capacitance” typical curve.
®
3
OPA234, 2234, 4234
SPECIFICATIONS: VS = ±15V
At TA = 25°C, VS = ±15V, RL = 10kΩ connected to ground, unless otherwise noted.
OPA234PA, UA, EA
OPA2234PA, UA
OPA4234PA, UA, U
OPA234P, U, E
OPA2234P, U
PARAMETER
CONDITION
OFFSET VOLTAGE
Input Offset Voltage
OPA4234U Model
vs Temperature(1)
vs Power Supply
vs Time
Channel Separation (Dual, Quad)
dVOS/dT
PSRR
INPUT BIAS CURRENT
Input Bias Current(2)
Input Offset Current
MAX
VCM = 0V
±70
±250
Operating Temperature Range
VS = ±1.35V to ±18V, VCM = 0V
±0.5
3
0.2
0.3
VCM = 0V
VCM = 0V
–12
±1
IB
IOS
NOISE
Input Voltage Noise Density
Current Noise Density
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
TYP
VOS
MIN
MIN
TYP
MAX
UNITS
±5
10
✻
±70
✻
✻
✻
✻
±500
±250
✻
20
µV
µV
µV/°C
µV/V
µV/mo
µV/V
–25
±5
✻
✻
–50
✻
nA
nA
f = 1kHz
vn
in
CMRR
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time: 0.1%
0.01%
Overload Recovery Time
VO = –14.5V to 14V
AOL
GBW
SR
TEMPERATURE RANGE
Specified Range
Operating Range
Storage
Thermal Resistance
8-Pin DIP
SO-8 Surface-Mount
MSOP-8 Surface-Mount
14-Pin DIP
SO-14 Surface-Mount
110
CL = 100pF
✻
86
120
100
0.35
0.2
41
47
22
G = 1, 10V Step, CL = 100pF
G = 1, 10V Step, CL = 100pF
(VIN) (Gain) = VS
✻
✻
(V+) –1 (V+) –0.7
(V–) +0.5 (V–) +0.15
±22
1000
G = +1
±1.35
IQ
(V+) –1
106
107 || 5
1010 || 6
VCM = 0V
OUTPUT
Voltage Output: Positive
Negative
Short-Circuit Current
ISC
Capacitive Load Drive (Stable Operation)(3)
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
(V–)
91
VCM = –15V to 14V
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
✻
✻
25
80
IO = 0
±15
±275
–40
–40
–55
✻
✻
V
dB
✻
✻
Ω || pF
Ω || pF
✻
dB
✻
✻
✻
✻
✻
MHz
V/µs
µs
µs
µs
✻
✻
✻
✻
V
V
mA
pF
✻
±18
±350
✻
+85
+125
+125
✻
✻
✻
✻
θJA
100
150
220
80
110
nV/√Hz
fA/√Hz
✻
✻
✻
✻
✻
✻
✻
V
V
µA
✻
✻
✻
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
✻ Specifications same as OPA234P,U,E.
NOTES: (1) Guaranteed by wafer-level test to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See “Small-Signal Overshoot
vs Load Capacitance” typical curve.
®
OPA234, 2234, 4234
4
ELECTROSTATIC
DISCHARGE SENSITIVITY
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V– .................................................................... 36V
Input Voltage ..................................................... (V–) –0.7V to (V+) +0.7V
Output Short-Circuit(1) .............................................................. Continuous
Operating Temperature .................................................. –40°C to +125°C
Storage Temperature ..................................................... –55°C to +125°C
Junction Temperature ...................................................................... 150°C
Lead Temperature (soldering, 10s) ................................................. 300°C
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
NOTE: (1) Short-circuit to ground, one amplifier per package.
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
PRODUCT
PACKAGE
PACKAGE
DRAWING
NUMBER
Single
OPA234EA
MSOP-8 Surface-Mount
337
–40°C to +85°C
A34(2)
"
"
"
"
MSOP-8 Surface-Mount
337
–40°C to +85°C
A34(2)
"
"
"
"
Plastic DIP-8
006
–40°C to +85°C
OPA234PA
OPA234P
OPA234UA
OPA234U
OPA234EA/250
OPA234EA/2K5
OPA234E/250
OPA234E/2K5
OPA234PA
OPA234P
OPA234UA
OPA234U
OPA2234PA
OPA2234P
OPA2234UA
OPA2234U
OPA2234PA
OPA2234P
OPA2234UA
OPA2234U
Rails
Rails
Rails
Rails
OPA4234PA
OPA4234P
OPA4234UA
OPA4234U
OPA4234PA
OPA4234P
OPA4234UA
OPA4234U
Rails
Rails
Rails
Rails
"
OPA234E
"
OPA234PA
OPA234P
OPA234UA
OPA234U
Dual
OPA2234PA
OPA2234P
OPA2234UA
OPA2234U
Quad
OPA4234PA
OPA4234P
OPA4234UA
OPA4234U
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER(1)
TRANSPORT
MEDIA
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Rails
Rails
Rails
Rails
"
"
"
SO-8 Surface-Mount
182
–40°C to +85°C
"
"
"
Plastic DIP-8
006
–40°C to +85°C
"
"
"
SO-8 Surface-Mount
182
–40°C to +85°C
"
"
"
Plastic DIP-8
006
–40°C to +85°C
"
"
"
SO-8 Surface-Mount
182
–40°C to +85°C
"
"
"
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K5 indicates 2500 devices per reel). Ordering 2500 pieces
of “OPA234E//2K5” will get a single 2500-piece Tape and Reel. (2) The grade will be marked on the Reel.
®
5
OPA234, 2234, 4234
TYPICAL PERFORMANCE CURVES
At TA = +25°C and RL = 10kΩ unless otherwise noted.
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
OPEN-LOOP GAIN/PHASE vs FREQUENCY
140
VS = +2.7V
120
–60
φ
60
–90
40
–120
VO = 0.25V
20
–150
G
V
VO = S
2
0
PSR, CMR (dB)
–30
80
1
10
100
1k
10k
100k
80
70
60
CMR
50
40
30
VS = +2.7V, +5V
or ±15V
VS = +2.7V or +5V
VS = ±15V
20
10
0
–180
–20
0.1
+PSR
100
90
Phase (°)
Voltage Gain (dB)
CL = 100pF
VS = +5V
±15V
100
120
110
0
1M
10
100
–PSR
1k
Frequency (Hz)
10k
100k
1M
Frequency (Hz)
INPUT NOISE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
CHANNEL SEPARATION vs FREQUENCY
1k
160
Channel Separation (dB)
Voltage Noise (nV/√Hz)
Current Noise (fA/√Hz)
RL = 10kΩ
Current Noise
100
140
120
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
100
Voltage Noise
80
10
1
10
100
1k
10k
100k
10
100
Frequency (Hz)
100k
–17
–20
VS = +2.7V, +5V
VS = +5V
–16
Input Bias Current (nA)
Input Bias, Input Offset Current (nA)
10k
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
–15
1k
Frequency (Hz)
IB
VS = ±15V
–10
–5
IOS
0
–15
VS = +2.7V
–14
–13
VS = ±15V
–12
–11
–10
+5
–75
–50
–25
0
25
50
75
100
–15
125
Ambient Temperature (°C)
®
OPA234, 2234, 4234
6
–10
–5
0
5
Common-Mode Voltage (V)
10
15
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C and RL = 10kΩ unless otherwise noted.
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
30
25
15
10
5
0.1%
0.3%
0.1%
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
VS = ±15V
20
15
10
0.7%
0.3%
5
0.5%
0.1%
0.2%
500
400
300
200
100
0
–100
–200
–500
200
175
150
125
75
100
50
0
25
25
75
50
100
125
150
175
200
–300
0
0
–400
20
VS = +2.7V, +5V
Typical production
distribution of packaged
units. Single, dual, and
quad units included.
Percent of Amplifiers (%)
Percent of Amplifiers (%)
25
Offset Voltage (µV)
Offset Voltage (µV)
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
35
35
25
30
Percent of Amplifiers (%)
20
15
10
0.3%
5
0.2% 0.1%
0.1%
25
20
15
10
0.3%
0.5%
0.2% 0.1%
5
0.1%
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
15
10
5
0.2%
0.1% 0.1%
0.1%
0.1%
120
5
4.5
4
3.5
PSR
110
CMR
100
90
80
70
0
VS = +2.7V
VS = +5V
VS = ±15V
AOL
130
20
0.4% 0.3%
3
140
AOL, CMR, PSR (dB)
25
2.5
AOL, CMR, PSR vs TEMPERATURE
30
VS = ±15V
2
1.5
0.5
5
4
3.5
3
2.5
2
1.5
1
0.5
4.5
Offset Voltage Drift (µV/°C)
Offset Voltage Drift (µV/°C)
VCM = (V–) –0.02V to (V+) –1V
8
7.5
7
6.5
6
5
5.5
4.5
4
3.5
3
2.5
2
1.5
1
60
0.5
Percent of Amplifiers (%)
0.1%
0
0
1
Percent of Amplifiers (%)
30
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
VS = +5V
Typical production
distribution of packaged
units. Single, dual,
and quad units included.
VS = +2.7V
–75
–50
–25
0
25
50
75
100
125
Ambient Temperature (°C)
Offset Voltage Drift (µV/°C)
®
7
OPA234, 2234, 4234
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C and RL = 10kΩ unless otherwise noted.
SMALL-SIGNAL STEP RESPONSE
G = 1, CL = 10,000pF, VS = +5V
20mV/div
20mV/div
SMALL-SIGNAL STEP RESPONSE
G = 1, CL = 100pF, VS = +5V
20µs/div
2µs/div
LARGE-SIGNAL STEP RESPONSE
G = 1, CL = 100pF, VS = +5V
SETTLING TIME vs CLOSED-LOOP GAIN
1000
1V/div
Settling Time (µs)
CL = 100pF
VS = ±15V,
10V Step
100
10
VS = +5V,
3V Step
VS = +2.7V,
1V Step
0.1%
0.01%
1
10µs/div
±1
±10
±100
Gain (V/V)
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
V+
(V+) –0.5
(V+) –1
(V+) –1.5
(V+) –2
(V+) –2.5
(V+) –3
70
25°C
60
85°C
(V–) +3
(V–) +2.5
(V–) +2
(V–) +1.5
(V–) +1
(V–) +0.5
V–
–40°C
85°C
–40°C
–55°C
25°C
125°C
0
VO = 100mVp-p
–55°C
125°C
Overshoot (%)
Output Voltage Swing (V)
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
±5
±10
G = –1,
G = +2
30
10
G = +1,
VS = ±15V
G = ±10
G = +1,
VS = +2.7, +5V
0
10pF
±15
Output Current (mA)
100pF
1nF
Load Capacitance
®
OPA234, 2234, 4234
40
20
High output current may
not be available at low
supply voltages due to
output swing limitations.
G = –2
50
8
10nF
100nF
TYPICAL PERFORMANCE CURVES (Cont.)
At TA = +25°C and RL = 10kΩ unless otherwise noted.
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT
vs TEMPERATURE
VS = +2.7V
VS = +5V
VS = +2.7V or +5V
VS = ±15V
450
VS = ±15V
Maximum output voltage
without slew-rate induced
distortion
20
15
10
Quiescent Current (µA)
25
Output Voltage (Vp-p)
70
525
30
VS = +5V
5
375
60
50
±IQ
300
40
30
225
150
20
±ISC
Short-Circuit Current (mA)
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
10
75
VS = ±2.7V
0
0
0
1k
10k
100k
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
Frequency (Hz)
APPLICATIONS INFORMATION
V+
OPA234 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.
10nF
OPA234 single op amp only.
Use offset adjust pins only to null
offset voltage of op amp—see text.
7
2
6
3
OPERATING VOLTAGE
OPA234 series op amps operate from single (+2.7V to
+36V) or dual (±1.35V to ±18V) supplies with excellent
performance. Specifications are production tested with
+2.7V, +5V, and ±15V supplies. Most behavior remains
unchanged throughout the full operating voltage range.
Parameters which vary significantly with operating voltage are shown in typical performance curves.
OPA234
5
1
10nF 4
100kΩ
Trim Range: ±4mV typ
(V–) = 0V for single supply operation.
V–
FIGURE 1. OPA234 Offset Voltage Trim Circuit.
OFFSET VOLTAGE TRIM
Offset voltage of OPA234 series amplifiers is laser trimmed
and usually requires no user adjustment. The OPA234
(single op amp version) provides offset voltage trim connections on pins 1 and 5. Offset voltage can be adjusted by
connecting a potentiometer as shown in Figure 1. This
adjustment should be used only to null the offset of the op
amp, not to adjust system offset or offset produced by the
signal source. Nulling offset could degrade the offset drift
behavior of the op amp. While it is not possible to predict
the exact change in drift, the effect is usually small.
®
9
OPA234, 2234, 4234
IMPORTANT NOTICE
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pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
Customers are responsible for their applications using TI components.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
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