OPA2
34
OPA
234
OPA2
234
OPA
423
4
OPA234
OPA2234
OPA4234
SBOS055A – MAY 1996 – REVISED JUNE 2004
Low-Power, Precision
SINGLE-SUPPLY OPERATIONAL AMPLIFIERS
FEATURES
q
WIDE SUPPLY RANGE:
Single Supply: V
S
= +2.7V to +36V
Dual Supply: V
S
=
±
1.35V to
±
18V
q
SPECIFIED PERFORMANCE:
+2.7V, +5V, and
±
15V
q
LOW QUIESCENT CURRENT: 250µA/amp
q
LOW INPUT BIAS CURRENT: 25nA max
q
LOW OFFSET VOLTAGE: 100µV max
q
HIGH CMRR, PSRR, and A
OL
q
SINGLE, DUAL, and QUAD VERSIONS
Offset Trim
–In
+In
V–
1
2
3
4
SO-8, MSOP-8
OPA234
8
7
6
5
NC
V+
Output
Offset Trim
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 industry-
standard packages and pinouts. The combination of
low offset voltage, high common-mode rejection, high
power-supply rejection, and a wide supply range pro-
vides 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 appli-
cations.
The 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 de-
manding applications, including high load capacitance.
Dual and quad designs feature completely indepen-
dent circuitry for lowest crosstalk and freedom from
interaction.
Single version packages are in an SO-8 surface-mount
and a space-saving MSOP-8 surface-mount. Dual pack-
ages are in an SO-8 surface-mount. Quad packages
are in an SO-14 surface-mount. All are specified for
–40°C to +85°C operation.
Out A
–In A
+In A
V–
1
2
3
4
OPA2234
8
A
B
7
6
5
SO-8
V+
Out B
–In B
+In B
OPA4234
Out A
–In A
+In A
V+
+In B
–In B
Out B
1
2
A
3
4
5
B
6
7
SO-14
C
9
8
–In C
Out C
D
12
11
10
+In D
V–
+In C
14
13
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.
All 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 © 1996-2004, Texas Instruments Incorporated
www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= +5V
At T
A
= 25°C, V
S
= +5V, R
L
= 10kΩ connected to V
S
/2, and V
OUT
= V
S
/2, unless otherwise noted.
OPA234UA, EA
OPA2234UA
OPA4234UA, U
MAX
±100
±150
±3
10
MIN
TYP
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
(V+) –1
106
10
7
|| 5
10
10
|| 6
108
86
120
96œ86
0.35
0.2
15
25
16
(V+) –1
0.25
(V+) –1
0.1
(V+) –0.65
0.05
(V+) –0.65
0.05
±11
1000
+5
+2.7
I
Q
I
O
= 0
–40
–40
–55
250
+36
300
+85
+125
+125
100
150
220
80
110
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
100
✻
✻
86
✻
✻
✻
✻
✻
dB
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
MAX
±250
±350
✻
20
UNITS
µV
µV
µV/°C
µV/V
µV/mo
µV/V
nA
nA
nV/√Hz
fA/√Hz
V
dB
Ω
|| pF
Ω
|| pF
dB
OPA234U, E
OPA2234U
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
OPA234E, EA
vs Temperature
(1)
vs Power Supply
vs Time
Channel Separation (Dual, Quad)
INPUT BIAS CURRENT
Input Bias Current
(2)
Input Offset Current
NOISE
Input Voltage Noise Density
Current Noise Density
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
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
A
OL
V
OS
dV
OS
/dT
PSRR
CONDITION
V
CM
= 2.5V
Operating Temperature Range
V
S
= +2.7V to +30V, V
CM
= 1.7V
MIN
TYP
±40
±100
±0.5
3
0.2
0.3
–15
±1
25
80
–0.1
91
I
B
I
OS
v
n
i
n
V
CM
= 2.5V
V
CM
= 2.5V
f = 1kHz
–30
±5
–50
✻
CMRR
V
CM
= –0.1V to 4V
V
CM
= 2.5V
V
O
= 0.25V to 4V
R
L
= 10kΩ
R
L
= 2kΩ
C
L
= 100pF
G = 1, 3V Step, C
L
= 100pF
G = 1, 3V Step, C
L
= 100pF
(V
IN
) (Gain) = V
S
R
L
= 10kΩ to V
S
/2
R
L
= 10kΩ to V
S
/2
R
L
= 10kΩ to Ground
R
L
= 10kΩ to Ground
G = +1
GBW
SR
MHz
V/µs
µs
µs
µs
V
V
V
V
mA
pF
V
V
µA
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
OUTPUT
Voltage Output: Positive
Negative
Positive
Negative
Short-Circuit Current
I
SC
Capacitive Load Drive (Stable Operation)
(3)
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
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
✻
Specifications same as OPA234U, E.
θ
JA
NOTES: (1) Wafer-level tested to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See
Small-Signal Overshoot vs Load
Capacitance
typical curve.
2
OPA234, OPA2234, OPA4234
www.ti.com
SBOS055A
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V
At T
A
= 25°C, V
S
= +2.7V, R
L
= 10kΩ connected to V
S
/2, and V
OUT
= V
S
/2, unless otherwise noted.
OPA234UA, EA
OPA2234UA
OPA4234UA, U
MAX
±100
±150
±3
10
MIN
TYP
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
(V+) –1
106
10
7
|| 5
10
10
|| 6
108
86
125
96
0.35
0.2
6
16
8
(V+) –1
0.25
(V+) –1
0.1
(V+) –0.6
0.05
(V+) –0.65
0.05
±8
1000
+2.7
+2.7
I
Q
I
O
= 0
–40
–40
–55
250
+36
300
+85
+125
+125
100
150
220
80
110
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
100
86
✻
86
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
MAX
±250
±350
✻
20
UNITS
µV
µV
µV/°C
µV/V
µV/mo
µV/V
nA
n
nV/√Hz
fA/√Hz
V
dB
Ω
|| pF
Ω
|| pF
dB
dB
MHz
V/µs
µs
µs
µs
V
V
V
V
mA
pF
V
V
µA
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
OPA234U, E
OPA2234U
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
OPA234E, EA
vs Temperature
(1)
vs Power Supply
vs Time
Channel Separation (Dual, Quad)
INPUT BIAS CURRENT
Input Bias Current
(2)
Input Offset Current
NOISE
Input Voltage Noise Density
Current Noise Density
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
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
A
OL
V
OS
dV
OS
/dT
PSRR
CONDITION
V
CM
= 1.35V
Operating Temperature Range
V
S
= +2.7V to +30V, V
CM
= 1.7V
MIN
TYP
±40
±100
±0.5
3
0.2
0.3
–15
±1
25
80
–0.1
91
I
B
I
OS
v
n
i
n
V
CM
= 1.35V
V
CM
= 1.35V
f = 1kHz
–30
±5
–50
✻
CMRR
V
CM
= –0.1V to 1.7V
V
CM
= 1.35V
V
O
= 0.25V to 1.7V
R
L
= 10kΩ
R
L
= 2kΩ
C
L
= 100pF
G = 1, 1V Step, C
L
= 100pF
G = 1, 1V Step, C
L
= 100pF
(V
IN
) (Gain) = V
S
R
L
= 10kΩ to V
S
/2
R
L
= 10kΩ to V
S
/2
R
L
= 10kΩ to Ground
R
L
= 10kΩ to Ground
G = +1
GBW
SR
OUTPUT
Voltage Output: Positive
Negative
Positive
Negative
Short-Circuit Current
I
SC
Capacitive Load Drive (Stable Operation)
(3)
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
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
✻
Specifications same as OPA234U, E.
θ
JA
NOTES: (1) Wafer-level tested to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See
Small-Signal Overshoot vs Load
Capacitance
typical curve.
OPA234, OPA2234, OPA4234
SBOS055A
www.ti.com
3
ELECTRICAL CHARACTERISTICS: V
S
=
±
15V
At T
A
= 25°C, V
S
=
±15V,
and R
L
= 10kΩ connected to ground, unless otherwise noted.
OPA234UA, EA
OPA2234UA
OPA4234UA, U
MAX
±250
±5
10
MIN
TYP
✻
±70
✻
✻
✻
✻
✻
✻
✻
✻
(V+) –1
106
10
7
|| 5
10
10
|| 6
110
120
0.35
0.2
41
47
22
(V+) –1 (V+) –0.7
(V–) +0.5 (V–) +0.15
±22
1000
±15
±275
✻
✻
100
✻
86
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
±18
±350
+85
+125
+125
100
150
220
80
110
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
✻
MAX
±500
±250
✻
20
UNITS
µV
µV
µV/°C
µV/V
µV/mo
µV/V
nA
nA
nV/√Hz
fA/√Hz
V
dB
Ω
|| pF
Ω
|| pF
dB
MHz
V/µs
µs
µs
µs
V
V
mA
pF
V
V
µA
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
OPA234U, E
OPA2234U
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
OPA4234U Model
vs Temperature
(1)
vs Power Supply
vs Time
Channel Separation (Dual, Quad)
INPUT BIAS CURRENT
Input Bias Current
(2)
Input Offset Current
NOISE
Input Voltage Noise Density
Current Noise Density
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
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
A
OL
GBW
SR
V
OS
dV
OS
/dT
PSRR
CONDITION
V
CM
= 0V
Operating Temperature Range
V
S
=
±1.35V
to
±18V,
V
CM
= 0V
MIN
TYP
±70
±0.5
3
0.2
0.3
–12
±1
25
80
(V–)
91
I
B
I
OS
v
n
i
n
V
CM
= 0V
V
CM
= 0V
f = 1kHz
–25
±5
–50
✻
CMRR
V
CM
= –15V to 14V
V
CM
= 0V
V
O
= –14.5V to 14V
C
L
= 100pF
G = 1, 10V Step, C
L
= 100pF
G = 1, 10V Step, C
L
= 100pF
(V
IN
) (Gain) = V
S
OUTPUT
Voltage Output: Positive
Negative
Short-Circuit Current
I
SC
Capacitive Load Drive (Stable Operation)
(3)
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
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
✻
Specifications same as OPA234U, E.
G = +1
±1.35
I
Q
I
O
= 0
–40
–40
–55
θ
JA
NOTES: (1) Wafer-level tested to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See
Small-Signal Overshoot vs Load
Capacitance
typical curve.
4
OPA234, OPA2234, OPA4234
www.ti.com
SBOS055A
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper han-
dling and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion 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.
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
NOTE: (1) Short-circuit to ground, one amplifier per package.
PACKAGE INFORMATION
PRODUCT
Single
OPA234EA
OPA234E
OPA234UA
OPA234U
Dual
OPA2234UA
OPA2234U
Quad
OPA4234UA
OPA4234U
PACKAGE
MSOP-8 Surface-Mount
PACKAGE
MARKING
A34
"
SO-8 Surface-Mount
"
OPA234UA
OPA234U
"
SO-8 Surface-Mount
"
SO-8 Surface-Mount
OPA2234UA
OPA2234U
"
OPA4234UA
OPA4234U
NOTE: (1) For the most current package and ordering information, see the
Package Option Addendum located at the end of this data sheet.
OPA234, OPA2234, OPA4234
SBOS055A
www.ti.com
5
PCB设计
