BURR-BROWN OPA234, OPA2234, OPA4234 User Manual

查询OPA2234P供应商

®

OPA234

OPA234

OPA234

OPA2234

OPA2234

OPA4234

OPA4234

OPA234
OPA2234
OPA4234

For most current data sheet and other product

information, visit www.burr-brown.com

Low Power, Precision

SINGLE-SUPPLY OPERATIONAL AMPLIFIERS

FEATURES

● 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 A

OL

● SINGLE, DUAL, and QUAD VERSIONS

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.

Offset Trim

–In

+In

Out A

–In A
+In A

V–

Out A

–In A
+In A

V+
+In B
–In B

Out B

V–

1
2
3
4
5
6
7

OPA234

1
2
3
4

8-Pin DIP, SO-8, MSOP-8

OPA2234

1

A

2
3
4

8-Pin DIP, SO-8

OPA4234

AD

BC

14-Pin DIP

SO-14

8
7

B

6
5

8
7
6
5

NC
V+
Output
Offset Trim

V+
Out B
–In B
+In B

14
13
12
11
10

9
8

Out D
–In D
+In D
V–
+In C
–In C
Out C

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

© 1996 Burr-Brown Corporation PDS-1318B Printed in U.S.A., May, 2000

1

OPA234, 2234, 4234

®

SPECIFICATIONS: VS = +5V

At TA = 25°C, VS = +5V, RL = 10kΩ connected to VS/2 and V

PARAMETER CONDITION MIN TYP MAX MIN TYP MAX UNITS
OFFSET VOLTAGE

Input Offset Voltage V

OPA234E, EA ±100 ±150 ✻ ±350 µV

vs Temperature

(1)

vs Power Supply PSRR V
vs Time 0.2 ✻ µV/mo

OS

dVOS/dT Operating Temperature Range ±0.5 ±3 ✻✻µV/°C

= +2.7V to +30V, V

S

Channel Separation (Dual, Quad) 0.3 ✻ µV/V

INPUT BIAS CURRENT

Input Bias Current
Input Offset Current I

(2)

I

B

OS

NOISE f = 1kHz
Input Voltage Noise Density v
Current Noise Density i

n
n

INPUT VOLTAGE RANGE

Common-Mode Voltage Range –0.1 (V+) –1 ✻✻V
Common-Mode Rejection CMRR V

INPUT IMPEDANCE

Differential 10
Common-Mode V

OPEN-LOOP GAIN V
Open-Loop Voltage Gain A

OL

FREQUENCY RESPONSE

Gain-Bandwidth Product GBW C
Slew Rate SR 0.2 ✻ V/µs
Settling Time: 0.1% G = 1, 3V Step, C

0.01% G = 1, 3V Step, C

Overload Recovery Time (V

OUTPUT

Voltage Output: Positive R

Negative R
Positive R

Negative R
Short-Circuit Current I
Capacitive Load Drive (Stable Operation)

SC

(3)

POWER SUPPLY

Specified Operating Voltage +5 ✻ V
Operating Voltage Range +2.7 +36 ✻✻V
Quiescent Current (per amplifier) I

Q

TEMPERATURE RANGE

Specified Range –40 +85 ✻✻°C
Operating Range –40 +125 ✻✻°C
Storage –55 +125 ✻✻°C
Thermal Resistance

8-Pin DIP 100 ✻ °C/W

θ

JA

SO-8 Surface-Mount 150 ✻ °C/W
MSOP-8 Surface-Mount 220 ✻ °C/W
14-Pin DIP 80 ✻ °C/W

SO-14 Surface-Mount 110 ✻ °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.

= VS/2, unless otherwise noted.

OUT

OPA234PA, UA, EA

OPA234P, U, E

OPA2234P, U

V

= 2.5V ±40 ±100 ✻ ±250 µV

CM

= 1.7V 3 10 ✻ 20 µV/V

CM

V

= 2.5V –15 –30 ✻ –50 nA

CM

V

= 2.5V ±1 ±5 ✻✻nA

CM

OPA2234PA, UA

OPA4234PA, UA, U

25 ✻ nV/√Hz
80 ✻ fA/√Hz

= –0.1V to 4V 91 106 86 ✻ dB

CM

7

|| 5 ✻ Ω || pF

= 2.5V 10

CM

= 0.25V to 4V

O

RL = 10kΩ 108 120 100 ✻ dB

R

= 2kΩ 86 96 86 ✻ dB

L

= 100pF 0.35 ✻ MHz

L

= 100pF 15 ✻ µs

L

= 100pF 25 ✻ µs

L

) (Gain) = V

IN

= 10kΩ to VS/2 (V+) –1

L

= 10kΩ to VS/2 0.25 0.05 ✻✻ V

L

= 10kΩ to Ground (V+) –1

L

= 10kΩ to Ground 0.1 0.05 ✻✻ V

L

S

10

|| 6 ✻ Ω || pF

16 ✻ µs

(V+) –0.65

(V+) –0.65

✻✻ V

✻✻ V

±11 ✻ mA

G = +1 1000 ✻ pF

IO = 0 250 300 ✻✻µA

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 V

PARAMETER CONDITION MIN TYP MAX MIN TYP MAX UNITS
OFFSET VOLTAGE

Input Offset Voltage V

OPA234E, EA ±100 ±150 ✻ ±350 µV

vs Temperature

(1)

vs Power Supply PSRR V
vs Time 0.2 ✻ µV/mo

OS

dVOS/dT Operating Temperature Range ±0.5 ±3 ✻✻µV/°C

= +2.7V to +30V, V

S

Channel Separation (Dual, Quad) 0.3 ✻ µV/V

INPUT BIAS CURRENT

Input Bias Current
Input Offset Current I

(2)

I

B

OS

NOISE f = 1kHz
Input Voltage Noise Density v
Current Noise Density i

n
n

INPUT VOLTAGE RANGE

Common-Mode Voltage Range –0.1 (V+) –1 ✻✻V
Common-Mode Rejection CMRR V

INPUT IMPEDANCE

Differential 10
Common-Mode V

OPEN-LOOP GAIN V
Open-Loop Voltage Gain A

OL

FREQUENCY RESPONSE

Gain-Bandwidth Product GBW C
Slew Rate SR 0.2 ✻ V/µs
Settling Time: 0.1% G = 1, 1V Step, C

0.01% G = 1, 1V Step, C

Overload Recovery Time (V

OUTPUT

Voltage Output: Positive R

Negative R
Positive R

Negative R
Short-Circuit Current I
Capacitive Load Drive (Stable Operation)

SC

(3)

POWER SUPPLY

Specified Operating Voltage +2.7 ✻ V
Operating Voltage Range +2.7 +36 ✻✻V
Quiescent Current (per amplifier) I

Q

TEMPERATURE RANGE

Specified Range –40 +85 ✻✻°C
Operating Range –40 +125 ✻✻°C
Storage –55 +125 ✻✻°C
Thermal Resistance

8-Pin DIP 100 ✻ °C/W

θ

JA

SO-8 Surface-Mount 150 ✻ °C/W
MSOP-8 Surface-Mount 220 ✻ °C/W
14-Pin DIP 80 ✻ °C/W

SO-14 Surface-Mount 110 ✻ °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.

= VS/2, unless otherwise noted.

OUT

OPA234PA, UA, EA

OPA234P, U, E

OPA2234P, U

V

= 1.35V ±40 ±100 ✻ ±250 µV

CM

= 1.7V 3 10 ✻ 20 µV/V

CM

V

= 1.35V –15 –30 ✻ –50 nA

CM

V

= 1.35V ±1 ±5 ✻✻ n

CM

OPA2234PA, UA

OPA4234PA, UA, U

25 ✻ nV/√Hz
80 ✻ fA/√Hz

= –0.1V to 1.7V 91 106 86 ✻ dB

CM

7

|| 5 ✻ Ω || pF

= 1.35V 10

CM

= 0.25V to 1.7V

O

RL = 10kΩ 108 125 100 ✻ dB

R

= 2kΩ 86 96 86 ✻ dB

L

= 100pF 0.35 ✻ MHz

L

= 100pF 6 ✻ µs

L

= 100pF 16 ✻ µs

L

(Gain) = V

IN)

= 10kΩ to VS/2 (V+) –1 (V+) –0.6 ✻✻ V

L

= 10kΩ to VS/2 0.25 0.05 ✻✻ V

L

= 10kΩ to Ground (V+) –1

L

= 10kΩ to Ground 0.1 0.05 ✻✻ V

L

S

10

|| 6 ✻ Ω || pF

8 ✻ µs

(V+) –0.65

✻✻ V

±8 ✻ mA

G = +1 1000 ✻ pF

IO = 0 250 300 ✻✻µA

®

3

OPA234, 2234, 4234

SPECIFICATIONS: VS = ±15V

At TA = 25°C, VS = ±15V, RL = 10kΩ connected to ground, unless otherwise noted.

OPA234P, U, E

OPA2234P, U

OPA2234PA, UA

OPA4234PA, UA, U
PARAMETER CONDITION MIN TYP MAX MIN TYP MAX UNITS
OFFSET VOLTAGE

OPA234PA, UA, EA

Input Offset Voltage V

OPA4234U Model ±70 ±250 µV

vs Temperature

(1)

vs Power Supply PSRR V
vs Time 0.2 ✻ µV/mo

OS

dVOS/dT Operating Temperature Range ±0.5 ±5 ✻✻µV/°C

S

V

= 0V ±70 ±250 ✻ ±500 µV

CM

= ±1.35V to ±18V, V

= 0V 3 10 ✻ 20 µV/V

CM

Channel Separation (Dual, Quad) 0.3 ✻ µV/V

INPUT BIAS CURRENT

Input Bias Current
Input Offset Current I

(2)

I

B

OS

V

= 0V –12 –25 ✻ –50 nA

CM

V

= 0V ±1 ±5 ✻✻nA

CM

NOISE f = 1kHz
Input Voltage Noise Density v
Current Noise Density i

n
n

25 ✻ nV/√Hz
80 ✻ fA/√Hz

INPUT VOLTAGE RANGE

Common-Mode Voltage Range (V–) (V+) –1 ✻✻V
Common-Mode Rejection CMRR V

INPUT IMPEDANCE

Differential 10
Common-Mode V

= –15V to 14V 91 106 86 ✻ dB

CM

7

|| 5 ✻ Ω || pF

= 0V 10

CM

10

|| 6 ✻ Ω || pF

OPEN-LOOP GAIN

Open-Loop Voltage Gain A

OL

VO = –14.5V to 14V 110 120 100 ✻ dB

FREQUENCY RESPONSE

Gain-Bandwidth Product GBW C
Slew Rate SR 0.2 ✻ V/µs
Settling Time: 0.1% G = 1, 10V Step, C

0.01% G = 1, 10V Step, C

Overload Recovery Time (V

= 100pF 0.35 ✻ MHz

L

= 100pF 41 ✻ µs

L

= 100pF 47 ✻ µs

L

) (Gain) = V

IN

S

22 ✻ µs

OUTPUT

Voltage Output: Positive (V+) –1 (V+) –0.7 ✻✻ V

Short-Circuit Current I

Negative (V–) +0.5

Capacitive Load Drive (Stable Operation)

SC

(3)

G = +1 1000 ✻ pF

(V–) +0.15

✻✻ V

±22 ✻ mA

POWER SUPPLY

Specified Operating Voltage ±15 ✻ V
Operating Voltage Range ±1.35 ±18 ✻✻V
Quiescent Current (per amplifier) I

Q

IO = 0 ±275 ±350 ✻✻µA

TEMPERATURE RANGE

Specified Range –40 +85 ✻✻°C
Operating Range –40 +125 ✻✻°C
Storage –55 +125 ✻✻°C
Thermal Resistance

8-Pin DIP 100 ✻ °C/W

θ

JA

SO-8 Surface-Mount 150 ✻ °C/W
MSOP-8 Surface-Mount 220 ✻ °C/W
14-Pin DIP 80 ✻ °C/W
SO-14 Surface-Mount 110 ✻ °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

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.

ABSOLUTE MAXIMUM RATINGS

Supply Voltage, V+ to V– .................................................................... 36V

Input Voltage ..................................................... (V–) –0.7V to (V+) +0.7V

Output Short-Circuit

Operating Temperature .................................................. –40°C to +125°C

Storage Temperature .....................................................–55 °C to +125°C

Junction Temperature ...................................................................... 150°C

Lead Temperature (soldering, 10s) ................................................. 300°C

NOTE: (1) Short-circuit to ground, one amplifier per package.

(1)

.............................................................. Continuous

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

PACKAGE SPECIFIED

PRODUCT PACKAGE NUMBER RANGE MARKING NUMBER
Single

OPA234EA MSOP-8 Surface-Mount 337 –40°C to +85°C A34

"""""OPA234EA/2K5 Tape and Reel

OPA234E MSOP-8 Surface-Mount 337 –40°C to +85°C A34

DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT

(2)

(2)

OPA234EA/250 Tape and Reel

OPA234E/250 Tape and Reel

"""""OPA234E/2K5 Tape and Reel

OPA234PA Plastic DIP-8 006 –40°C to +85°C OPA234PA OPA234PA Rails
OPA234P
OPA234UA SO-8 Surface-Mount 182 –40°C to +85°C OPA234UA OPA234UA Rails
OPA234U

Dual

OPA2234PA Plastic DIP-8 006 –40°C to +85°C OPA2234PA OPA2234PA Rails
OPA2234P
OPA2234UA SO-8 Surface-Mount 182 –40°C to +85°C OPA2234UA OPA2234UA Rails
OPA2234U

Quad

OPA4234PA Plastic DIP-8 006 –40°C to +85°C OPA4234PA OPA4234PA Rails
OPA4234P
OPA4234UA SO-8 Surface-Mount 182 –40°C to +85°C OPA4234UA OPA4234UA Rails
OPA4234U

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.

"""OPA234P OPA234P Rails
"""OPA234U OPA234U Rails

"""OPA2234P OPA2234P Rails
"""OPA2234U OPA2234U Rails

"""OPA4234P OPA4234P Rails
"""OPA4234U OPA4234U Rails

(1)

MEDIA

®

5

OPA234, 2234, 4234

TYPICAL PERFORMANCE CURVES

At TA = +25°C and RL = 10kΩ unless otherwise noted.

140
120

VS = +5V

100

80
60
40

Voltage Gain (dB)

20

0

–20

0.1

1k

100

Current Noise (fA/√Hz)

Voltage Noise (nV/√Hz)

10

1

OPEN-LOOP GAIN/PHASE vs FREQUENCY

VS = +2.7V

CL = 100pF

±15V

φ

VO = 0.25V

V

S

VO =

2

1 10 100 1k 10k 100k 1M

Frequency (Hz)

INPUT NOISE AND CURRENT NOISE

SPECTRAL DENSITY vs FREQUENCY

Voltage Noise

10 100 1k 10k 100k

Frequency (Hz)

G

Current Noise

0
–30
–60
–90
–120
–150
–180

120
110
100

90
80
70
60

Phase (°)

50
40

PSR, CMR (dB)

30
20
10

0

160

140

120

100

Channel Separation (dB)

80

POWER SUPPLY AND COMMON-MODE REJECTION

VS = +2.7V, +5V
or ±15V
V

S

V

S

10 100 1k 10k 100k 1M

CHANNEL SEPARATION vs FREQUENCY

Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.

10 100 1k 10k 100k

vs FREQUENCY

CMR

= +2.7V or +5V
= ±15V

Frequency (Hz)

Frequency (Hz)

+PSR

–PSR

RL = 10kΩ

INPUT BIAS AND INPUT OFFSET CURRENT

–20

–15

–10

–5

Input Bias, Input Offset Current (nA)

+5

VS = ±15V

I

OS

0

–75 –50 –25 0 25 50 75 100 125

®

vs TEMPERATURE

VS = +2.7V, +5V

I

B

Ambient Temperature (°C)

OPA234, 2234, 4234

–17

–16

–15

–14

–13

–12

Input Bias Current (nA)

–11

–10

6

INPUT BIAS CURRENT

vs INPUT COMMON-MODE VOLTAGE

VS = +5V

= +2.7V

V

S

VS = ±15V

–15 –10 –5 0 5 10 15

Common-Mode Voltage (V)

TYPICAL PERFORMANCE CURVES (Cont.)

OFFSET VOLTAGE DRIFT

PRODUCTION DISTRIBUTION

Percent of Amplifiers (%)

Offset Voltage Drift (µV/°C)

3

3.5

4

4.5

5

0.5

1

1.5

2

2.5

35

30

25

20

15

10

5

0

0.1%

0.1%

0.2%

0.5%

0.3%

VS = +5V

Typical production
distribution of packaged
units. Single, dual,
and quad units included.

At TA = +25°C and RL = 10kΩ unless otherwise noted.

25

Typical production
distribution of packaged

20

units. Single, dual, and
quad units included.

15

10

5

Percent of Amplifiers (%)

0

200

35

30

25

20

PRODUCTION DISTRIBUTION

0.1%

175

150

125

PRODUCTION DISTRIBUTION

VS = +2.7V

OFFSET VOLTAGE

75

100

Offset Voltage (µV)

OFFSET VOLTAGE DRIFT

0

50

25

255075

Typical production
distribution of packaged
units. Single, dual,
and quad units included.

= +2.7V, +5V

V

S

0.3%

125

100

150

0.1%

175

200

30

Typical production
distribution of packaged

25

units. Single, dual,
and quad units included.

20

15

10

Percent of Amplifiers (%)

5

0.1%

0

–500

PRODUCTION DISTRIBUTION

0.5%

–400

–300

OFFSET VOLTAGE

0

–200

–100

Offset Voltage (µV)

100

VS = ±15V

0.7%

0.3%

200

300

0.2%

400

500

15

10

Percent of Amplifiers (%)

5

0

1

0.5

30

25

20

15

10

Percent of Amplifiers (%)

5

0

0.5

0.4%

0.3%

0.1% 0.1%0.2% 0.1%

2

1.5

Offset Voltage Drift (µV/°C)

OFFSET VOLTAGE DRIFT

PRODUCTION DISTRIBUTION

VS = ±15V

0.3%

1.5

0.1%

213

2.5

Offset Voltage Drift (µV/°C)

3

2.5

Typical production
distribution of packaged
units. Single, dual,
and quad units included.

0.2%

4

3.5

4.555.566.5

3.5

0.1% 0.1%0.1%

4

4.5

5

140
130
120
110
100

90

, CMR, PSR (dB)

OL

A

80
70

7

8

7.5

60

–75 –50 –25 0 25 50 75 100 125

AOL, CMR, PSR vs TEMPERATURE

A

OL

PSR

CMR

VCM = (V–) –0.02V to (V+) –1V

Ambient Temperature (°C)

VS = +2.7V

= +5V

V

S

= ±15V

V

S

7

OPA234, 2234, 4234

®

TYPICAL PERFORMANCE CURVES (Cont.)

At TA = +25°C and RL = 10kΩ unless otherwise noted.

20mV/div

SMALL-SIGNAL STEP RESPONSE

G = 1, C

= 100pF, VS = +5V

L

2µs/div

LARGE-SIGNAL STEP RESPONSE

G = 1, C

= 100pF, VS = +5V

L

1000

100

SMALL-SIGNAL STEP RESPONSE

G = 1, C

= 10,000pF, VS = +5V

L

20mV/div

20µs/div

SETTLING TIME vs CLOSED-LOOP GAIN

VS = ±15V,

10V Step

CL = 100pF

1V/div

OUTPUT VOLTAGE SWING vs OUTPUT CURRENT

V+

(V+) –0.5

(V+) –1

(V+) –1.5

(V+) –2

(V+) –2.5

(V+) –3
(V–) +3

(V–) +2.5

(V–) +2

(V–) +1.5

Output Voltage Swing (V)

(V–) +1

(V–) +0.5

125°C

25°C

125°C

V–

0 ±5 ±10

10µs/div

85°C

85°C

Output Current (mA)

25°C

–55°C

–40°C

–40°C

–55°C

High output current may
not be available at low
supply voltages due to
output swing limitations.

±15

10

Settling Time (µs)

VS = +2.7V,

1V Step

1

±1 ±10 ±100

70

60

VO = 100mVp-p

50

40

30

Overshoot (%)

20

10

G = +1,

= +2.7, +5V

V

S

0

10pF 100pF 1nF 10nF 100nF

VS = +5V,

3V Step

Gain (V/V)

SMALL-SIGNAL OVERSHOOT

vs LOAD CAPACITANCE

G = –1,

G = +2

G = +1,

= ±15V

V

S

Load Capacitance

0.1%

0.01%

G = –2

G = ±10

®

OPA234, 2234, 4234

8

V+

V–

100kΩ

OPA234 single op amp only.
Use offset adjust pins only to null
offset voltage of op amp—see text.

Trim Range: ±4mV typ
(V–) = 0V for single supply operation.

OPA234

6

7

5

4

3

2

1

10nF

10nF

TYPICAL PERFORMANCE CURVES (Cont.)

At TA = +25°C and RL = 10kΩ unless otherwise noted.

MAXIMUM OUTPUT VOLTAGE

30

25

20

15

10

Output Voltage (Vp-p)

5

0

VS = +5V

VS = ±2.7V

1k

vs FREQUENCY

VS = ±15V

Frequency (Hz)

Maximum output voltage
without slew-rate induced
distortion

10k

100k

APPLICATIONS INFORMATION

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.

QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT

525

450

375

300

225

150

Quiescent Current (µA)

75

0

–75 –50 –25 0 25 50 75 100 125

±I

Q

vs TEMPERATURE

Temperature (°C)

VS = +2.7V
V

= +5V

S

V

= +2.7V or +5V

S

V

= ±15V

S

±I

SC

70

60

50

40

30

20

Short-Circuit Current (mA)

10

0

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.

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.

FIGURE 1. OPA234 Offset Voltage Trim Circuit.

9

OPA234, 2234, 4234

®

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