P
opulation
2.5
-2.5
5.0
-5.0
7.5
-7.5
10.0
-10.0
12.5
-12.5
15.0
-15.0
17.5
-17.5
20.0
-20.0
22.5
-22.5
25.0
-25.0
OffsetVoltage( V)m
0
OFFSETVOLTAGEPRODUCTIONDISTRIBUTION
OPA376
OPA2376
OPA4376
SBOS406A – JUNE 2007 – REVISED AUGUST 2007
Precision, Low Noise, Low Quiescent Current,
Operational Amplifier
1
FEATURES DESCRIPTION
2
• LOW NOISE: 7.5nV/ √ Hz at 1kHz
• 0.1Hz to 10Hz NOISE: 0.8 μ V
PP
• QUIESCENT CURRENT: 950 μ A (max)
• LOW OFFSET VOLTAGE: 25 μ V (max)
• SINGLE-SUPPLY OPERATION and portable applications. In addition, this device has
• SUPPLY VOLTAGE: 2.2V to 5.5V
• SPACE-SAVING PACKAGES:
– SC-70, SOT23, MSOP, TSSOP
APPLICATIONS
• ADC BUFFER
• AUDIO EQUIPMENT TSSOP-14 package. All versions are specified for
• MEDICAL INSTRUMENTATION
• HANDHELD TEST EQUIPMENT
The OPA376 family represent a new generation of
low-noise operational amplifiers. Rail-to-rail input, low
offset (5 μ V typ), low noise (7.5nV/ √ Hz), quiescent
current less than 1mA max, and a 5.5MHz bandwidth
make this part very attractive for a variety of precision
a reasonably wide supply range with excellent PSRR,
making it attractive for applications that run directly
from batteries without regulation.
The OPA376 (single version) is available in
MicroSIZE SC70-5, SOT23-5, and SO-8 packages.
The OPA2376 (dual) is offered in the MSOP-8 and
SO-8 packages. The OPA4376 (quad) is offered in a
operation from – 40 ° C to +125 ° C.
1
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.
2 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007, Texas Instruments Incorporated
OPA376
OPA2376
OPA4376
SBOS406A – JUNE 2007 – REVISED AUGUST 2007
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.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage +7 V
(2)
Signal Input Terminals
Output Short-Circuit
Operating Temperature – 40 to +150 ° C
Storage Temperature – 65 to +150 ° C
Junction Temperature +150 ° C
ESD Rating Charged Device Model 1000 V
(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 supported.
(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.
PRODUCT PACKAGE-LEAD PACKAGE DESIGNATOR PACKAGE MARKING
OPA376 SOT23-5 DBV BUQ
OPA2376 SO-8 D OPA2376
OPA2376 MSOP-8
OPA4376 TSSOP-14 PW OPA4376
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com .
(2) Available Q4, 2007.
(3)
Voltage
(2)
Current
Human Body Model 4000 V
Machine Model 200 V
(1)
OPA376, OPA2376, OPA4376 UNIT
– 0.5 to (V+) + 0.5 V
± 10 mA
Continuous
PACKAGE INFORMATION
SC70-5 DCK BUR
SO-8 D OPA376
(2)
(1)
DGK OBBI
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Product Folder Link(s): OPA376 OPA2376 OPA4376
OPA376
OPA2376
OPA4376
SBOS406A – JUNE 2007 – REVISED AUGUST 2007
ELECTRICAL CHARACTERISTICS: V
= +2.2V to +5.5V
S
Boldface limits apply over the specified temperature range: TA= – 40 ° C to +125 ° C.
At TA= +25 ° C, RL= 10k Ω connected to VS/2, V
PARAMETERS CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
Input Offset Voltage V
vs Temperature dV
vs Power Supply PSRR VS= +2.2V to +5.5V, VCM< (V+) – 1.3V 5 20 μ V/V
Over Temperature VS= +2.2V to +5.5V, VCM< (V+) – 1.3V 5 μ V/V
Channel Separation, dc (dual, quad) 0.5 mV/V
INPUT BIAS CURRENT
Input Bias Current I
Over Temperature see the Typical Characteristics pA
Input Offset Current I
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz 0.8 μ V
Input Voltage Noise Density, f = 1kHz e
Input Current Noise, f = 1kHz i
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
Common-Mode Rejection Ratio CMRR (V – ) < VCM< (V+) – 1.3 V 76 90 dB
INPUT CAPACITANCE
Differential 6.5 pF
Common-Mode 13 pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain A
FREQUENCY RESPONSE CL= 100pF, VS= 5.5V
Gain-Bandwidth Product GBW 5.5 MHz
Slew Rate SR G = +1 2 V/ μ s
Settling Time 0.1% t
Settling Time 0.01% t
Overload Recovery Time VIN× Gain > V
THD + Noise THD+N VO= 1V
OS
/dT – 40 ° C to +85 ° C 0.26 1 μ V/ ° C
OS
B
OS
n
n
CM
OL
S
S
= VS/2, and V
CM
– 40 ° C to +125 ° C 0.32 2 μ V/ ° C
50mV < VO< (V+) – 50mV, RL= 10k Ω 120 134 dB
100mV < VO< (V+) – 100mV, RL= 2k Ω 120 126 dB
2V Step , G = +1 1.6 μ s
2V Step , G = +1 2 μ s
, G = +1, f = 1kHz, RL= 10k Ω 0.00027 %
RMS
= VS/2, unless otherwise noted.
OUT
S
OPA376, OPA2376, OPA4376
5 25 μ V
0.2 10 pA
0.2 10 pA
7.5 nV/ √ Hz
2 fA/ √ Hz
(V – ) – 0.1 (V+) + 0.1 V
0.33 μ s
PP
Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): OPA376 OPA2376 OPA4376
OPA376
OPA2376
OPA4376
SBOS406A – JUNE 2007 – REVISED AUGUST 2007
ELECTRICAL CHARACTERISTICS: V
= +2.2V to +5.5V (continued)
S
Boldface limits apply over the specified temperature range: TA= – 40 ° C to +125 ° C.
At TA= +25 ° C, RL= 10k Ω connected to VS/2, V
PARAMETERS CONDITIONS MIN TYP MAX UNIT
OUTPUT
Voltage Output Swing from Rail RL= 10k Ω 10 20 mV
Over Temperature RL= 10k Ω 40 mV
Voltage Output Swing from Rail RL= 2k Ω 40 50 mV
Over Temperature RL= 2k Ω 80 mV
Short-Circuit Current I
Capacitive Load Drive C
Open-Loop Output Impedance R
POWER SUPPLY
Specified Voltage Range V
Operating Voltage Range 2 to 5.5 V
Quiescent Current per amplifier I
Over Temperature 1 mA
TEMPERATURE RANGE
Specified Range – 40 +125 ° C
Operating Range – 40 +150 ° C
Thermal Resistance θ
SC70 250 ° C/W
SOT23 200 ° C/W
SO-8, TSSOP-14, MSOP-8 150 ° C/W
SC
LOAD
O
S
Q
JA
= VS/2, and V
CM
IO= 0, VS= +5.5V, VCM< (V+) – 1.3V 760 950 μ A
= VS/2, unless otherwise noted.
OUT
OPA376, OPA2376, OPA4376
± 40 mA
see the Typical Characteristics
150 Ω
2.2 5.5 V
° C/W
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Product Folder Link(s): OPA376 OPA2376 OPA4376
1
2
3
5
4
V+
-IN
OUT
V-
+IN
1
2
3
4
8
7
6
5
NC
V+
OUT
NC
NC
-IN
+IN
V-
1
2
3
5
4
V+
OUT
+IN
V-
-IN
1
2
3
4
8
7
6
5
V+
OUTB
-INB
+INB
OUTA
-INA
+INA
V-
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUTD
-IND
+IND
V-
+INC
-INC
OUTC
OutA
-INA
+INA
V+
+INB
-INB
OUTB
OPA376
OPA2376
OPA4376
SBOS406A – JUNE 2007 – REVISED AUGUST 2007
PIN CONFIGURATIONS
OPA376
SOT23-5
Top View
OPA376
SO-8
Top View
OPA376
SC70-5
Top View
OPA2376
SO-8, MSOP-8
Top View
OPA4376
TSSOP-14
Top View
NOTE: NC denotes no internal connection.
Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): OPA376 OPA2376 OPA4376
Power-SupplyRejectionRatio(dB)
10
120
100
80
60
40
20
0
Frequency(Hz)
10M100k100 1k 10k 1M
V(+) Power-SupplyRejectionRatio
V( )- Power-SupplyRejectionRatio
Common-Mode
RejectionRatio
Open-LoopGain(dB)
0.1
160
140
120
100
80
60
40
20
0
-20
PhaseMargin( )°
0
-20
-40
-60
-80
-100
-120
-140
-160
-180
Frequency(Hz)
10M1 100k10 100 1k 10k 1M
Gain
Phase
Open-LoopGainandPSRR(dB)
-50 -25
160
140
120
100
80
Temperature( C)°
15050 100
0 25 75 125
Open-LoopGain(R =2 )kW
L
Power-SupplyRejectionRatio
(V =2.1Vto5.5V)
S
VoltageNoise(nV/ )Ö
Hz
1 10
100
10
1
Frequency(Hz)
100k100 1k 10k
TotalHarmonicDistortion+Noise(%)
10 100
1
0.1
0.01
0.001
0.0001
Frequency(Hz)
100k
1k 10k
V =5V,V =2V,V =1V
S CM OUT RMS
Gain=10V/V
Gain=1V/V
OPA376
OPA2376
OPA4376
SBOS406A – JUNE 2007 – REVISED AUGUST 2007
At TA= +25 ° C, RL= 10k Ω connected to VS/2, V
TYPICAL CHARACTERISTICS
= VS/2, and V
CM
= VS/2, unless otherwise noted.
OUT
OPEN-LOOP GAIN/PHASE vs FREQUENCY REJECTION RATIO vs FREQUENCY
POWER-SUPPLY AND COMMON-MODE
Figure 1. Figure 2.
OPEN-LOOP GAIN AND POWER-SUPPLY 0.1Hz to 10Hz
REJECTION RATIO vs TEMPERATURE INPUT VOLTAGE NOISE
INPUT VOLTAGE NOISE SPECTRAL DENSITY vs FREQUENCY
6 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated
Figure 3. Figure 4.
Figure 5. Figure 6.
Product Folder Link(s): OPA376 OPA2376 OPA4376
TOTAL HARMONIC DISTORTION + NOISE