OPA373/OPA2373
OPA374/OPA2374/OPA4374
6.5MHz, 585µA, Rail-to-Rail I/O
CMOS Operational Amplifier
FEATURES
D
D
D
D
D
D
D
D
LOW OFFSET: 5mV (max)
LOW I
B
: 10pA (max)
HIGH BANDWIDTH: 6.5MHz
RAIL-TO-RAIL INPUT AND OUTPUT
SINGLE SUPPLY: +2.3V to +5.5V
SHUTDOWN: OPAx373
SPECIFIED UP TO +125°C
MicroSIZE
PACKAGES: SOT23-5, SOT23-6,
and SOT23-8
DESCRIPTION
The OPA373 and OPA374 families of operational
amplifiers are low power and low cost with excellent
bandwidth (6.5MHz) and slew rate (5V/µs). The input
range extends 200mV beyond the rails and the output
range is within 25mV of the rails. Their speed/power ratio
and small size make them ideal for portable and
battery-powered applications.
The OPA373 family includes a shutdown mode. Under
logic control, the amplifiers can be switched from normal
operation to a standby current that is less than 1µA.
The OPA373 and OPA374 families of operational
amplifiers are specified for single or dual power supplies
of +2.7V to +5.5V, with operation from +2.3V to +5.5V. All
models are specified for −40°C to +125°C.
APPLICATIONS
D
D
D
D
PORTABLE EQUIPMENT
BATTERY-POWERED DEVICES
ACTIVE FILTERS
DRIVING A/D CONVERTERS
Pin Assignment
OPA373
OPA374
6
5
4
SOT23−
(1)
6
V+
Enable
−IN
Out
V−
+IN
1
2
3
SOT23−
5
4
−IN
5
V+
A75
Out
V−
+IN
1
2
3
OPA2373
OPA373
OUT A
NC
(2)
−IN
+IN
V−
1
2
3
4
SO−
8
8
7
6
5
Enable
V+
OUT
NC
(2)
1
A
8
B
V−
Enable A
4
5
MSOP−
10
7
6
+IN B
Enable B
−IN
B
10 V+
9
OUT B
−IN
A 2
+IN A
3
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1
2018 AUG
OPA373/OPA2373
OPA374/OPA2374/OPA4374
OPA2374
OPA373
OUT A
NC
(2)
−IN
+IN
V−
1
2
3
4
SO−
8
8
7
6
5
Enable
V+
OUT
NC
(2)
SO− SOT23−
8,
8
1
A
B
8
7
6
5
V+
OUT B
−IN
B
+IN B
−IN
A 2
+IN A
V−
3
4
OPA4374
OUT A
−
IN A
NC
(2)
−IN
+IN
V−
1
2
3
4
SO−
8
8
7
6
5
NC
(2)
V+
OUT
NC
(2)
+IN A
V+
+IN B
−IN
B
OUT B
1
2
3
4
5
6
7
14,
14
SO− TSSOP−
B
C
A
D
14
13
12
11
10
9
8
OUT D
−
IN D
+IN D
V−
+IN C
−IN
C
OUT C
OPA374
(1) Pin 1 of the SOT23-6 is determined by orienting the package marking as shown.
(2) NC indicates no internal connection.
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V
Signal Input Terminals, Voltage(2) . . . . . . . . . −0.5V to (V+) + 0.5V
Current(2) . . . . . . . . . . . . . . . . . . .
±10mA
Output Short-Circuit(3) . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
Operating Temperature . . . . . . . . . . . . . . . . . . . . . −55°C to +150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . −65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Lead Temperature (soldering, 10s) . . . . . . . . . . . . . . . . . . . . +300°C
(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) Input terminals are diode-clamped to the power-supply rails.
Input signals that can swing more than 0.5V beyond the supply
rails should be current-limited to 10mA or less.
(3) Short-circuit to ground, one amplifier per package.
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2018 AUG
OPA373/OPA2373
OPA374/OPA2374/OPA4374
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V to +5.5V
Boldface
limits apply over the specified temperature range,
T
A
= −40°C to +125°C.
At TA = +25°C, RL = 10kΩ connected to VS/2, and VOUT = VS/2, unless otherwise noted.
OPA373, OPA2373, OPA374,
OPA2374, OPA4374
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
over Temperature
Drift
vs Power Supply
over Temperature
Channel Separation, DC
f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection Ratio
over Temperature
over Temperature
INPUT BIAS CURRENT
Input Bias Current
Input Offset Current
INPUT IMPEDANCE
Differential
Common-Mode
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
Input Voltage Noise Density, f = 10kHz
Input Current Noise Density, f = 10kHz
OPEN-LOOP GAIN
Open-Loop Voltage Gain
over Temperature
over Temperature
OUTPUT
Voltage Output Swing from Rail
over Temperature
over Temperature
Short-Circuit Current
Capacitive Load Drive
Open-Loop Output Impedance
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time, 0.1%
0.01%
Overload Recovery Time
Total Harmonic Distortion + Noise
ENABLE/SHUTDOWN
t
OFF
t
ON
V
L
(shutdown)
V
H
(amplifier is active)
Input Bias Current of Enable Pin
I
QSD
(per amplifier)
V
CM
< (V+) − 2V
e
n
i
n
A
OL
V
S
= 5V, R
L
= 100kΩ, 0.025V < V
O
< 4.975V
V
S
= 5V, R
L
= 100kΩ, 0.025V < V
O
< 4.975V
V
S
= 5V, R
L
= 5kΩ, 0.125V < V
O
< 4.875V
V
S
= 5V, R
L
= 5kΩ, 0.125V < V
O
< 4.875V
R
L
= 100kΩ
R
L
= 100kΩ
R
L
= 5kΩ
R
L
= 5kΩ
I
SC
C
LOAD
f = 1MHz, I
O
= 0
C
L
= 100pF
GBW
SR
t
S
G = +1
V
S
= 5V, 2V Step, G = +1
V
S
= 5V, 2V Step, G = +1
V
IN
•
Gain > V
S
V
S
= 5V, V
O
= 3V
PP
, G = +1, f = 1kHz
6.5
5
1
1.5
0.3
0.0013
3
12
V−
(V−) + 2
(V−) + 0.8
CONDITIONS
V
OS
dV
OS
/dT
PSRR
V
S
= 5V
MIN
TYP
1
3
25
0.4
128
MAX
5
6.5
100
150
UNIT
mV
mV
µV/°C
µV/V
µV/V
µV/V
dB
V
dB
dB
dB
dB
pA
pA
Ω
pF
Ω
pF
µV
PP
nV/
√
Hz
fA/
√
Hz
dB
dB
dB
dB
mV
mV
mV
mV
V
S
= 2.7V to 5.5V, V
CM
< (V+) − 2V
V
S
= 2.7V to 5.5V, V
CM
< (V+) − 2V
V
CM
CMRR
(V−) − 0.2V < V
CM
< (V+) − 2V
(V−) − 0.2V < V
CM
< (V+) − 2V
V
S
= 5.5V, (V−) − 0.2V < V
CM
< (V+) + 0.2V
V
S
= 5.5V, (V−) − 0.2V < V
CM
< (V+) + 0.2V
(V−) − 0.2
80
70
66
60
(V+) + 0.2
90
I
B
I
OS
±0.5
±0.5
10
13
3
10
13
6
10
15
4
94
80
94
80
110
106
±10
±10
25
25
100
125
125
See Typical Characteristics
See Typical Characteristics
220
18
Ω
MHz
V/µs
µs
µs
µs
%
µs
µs
V
V
µA
µA
THD+N
V+
0.2
< 0.5
1
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3
2018 AUG
OPA373/OPA2373
OPA374/OPA2374/OPA4374
ELECTRICAL CHARACTERISTICS: V
S
= +2.7V to +5.5V (continued)
Boldface
limits apply over the specified temperature range,
T
A
= −40°C to +125°C.
At TA = +25°C, RL = 10kΩ connected to VS/2, and VOUT = VS/2, unless otherwise noted.
OPA373, OPA2373, OPA374,
OPA2374, OPA4374
PARAMETER
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
over Temperature
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
SOT23-5, SOT23-6, SOT23-8
MSOP-10, SO-8
SO-14, TSSOP-14
V
S
I
Q
I
O
= 0
CONDITIONS
MIN
2.7
TYP
MAX
5.5
UNIT
V
V
µA
µA
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
2.3 to 5.5
585
750
800
+125
+150
+150
−40
−55
−65
q
JA
+200
+150
+100
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2018 AUG
OPA373/OPA2373
OPA374/OPA2374/OPA4374
TYPICAL CHARACTERISTICS
At TA = +25°C, RL = 10kΩ connected to VS/2, and VOUT = VS/2, unless otherwise noted.
POWER−SUPPLY AND COMMON−MODE
REJECTION RATIO vs FREQUENCY
OPEN−LOOP GAIN AND PHASE vs FREQUENCY
120
100
Open−Loop Gain (dB)
Gain
Phase Margin (_)
80
60
40
20
0
−20
10
100
1k
10k
100k
1M
Frequency (Hz)
Phase
−30
−60
−90
−120
−150
−180
10M
30
PSRR and CMRR (dB)
0
100
CMRR
80
60
40
20
0
100
1k
10k
100k
1M
10M
Frequency (Hz)
TOTAL HARMONIC DISTORTION+NOISE
vs FREQUENCY
0.100
Total Harmonic Distortion+Noise (%)
R
L
= 5kΩ
PSRR
120
INPUT VOLTAGE NOISE
SPECTRAL DENSITY vs FREQUENCY
1000
Voltage Noise (nV/√Hz)
G = 10V/V
100
0.010
G = 1V/V
0.001
10
100
1k
Frequency (Hz)
10k
100k
10
10
100
1k
Frequency (Hz)
OPEN−LOOP GAIN AND POWER−SUPPLY
REJECTION RATIO vs TEMPERATURE
130
R
L
= 100kΩ
120
A
OL
, PSRR (dB)
10k
100k
COMMON−MODE REJECTION RATIO vs TEMPERATURE
120
V
S
= 5.5V
110
100
CMRR (dB)
90
80
70
60
50
V
CM
=
−0.2V
to 5.7V
V
CM
=
−0.2V
to 3.5V
110
R
L
= 5kΩ
100
PSRR
90
80
40
−50
−25
0
25
50
75
100
125
150
−50
−25
0
25
50
75
100
125
150
Temperature (_ C)
Temperature (_C)
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2018 AUG
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