OPA2107
OPA
210
7
OPA
210
7
SBOS161A – JANUARY 1989 – REVISED JULY 2003
Precision Dual
Difet
®
Operational Amplifier
FEATURES
q
Very Low Noise: 8nV/√Hz at 10kHz
q
Low V
OS
: 1mV max
q
Low Drift: 10µV/
°
C max
q
Low I
B
: 10pA max
q
Fast Settling Time: 2µs to 0.01%
q
Unity-Gain Stable
APPLICATIONS
q
Data Acquisition
q
DAC Output Amplifiers
q
Optoelectronics
q
High-Impedance Sensor Amps
q
High-Performance Audio Circuitry
q
Medical Equipment, CT Scanners
DESCRIPTION
The OPA2107 dual operational amplifier provides precision
Difet
performance with the cost and space savings of a dual
op amp. It is useful in a wide range of precision and low-noise
analog circuitry and can be used to upgrade the performance
of designs currently using BIFET
®
type amplifiers.
The OPA2107 is fabricated on a proprietary dielectrically
isolated (
Difet
) process. This holds input bias currents to
very low levels without sacrificing other important param-
eters, such as input offset voltage, drift and noise. Laser-
trimmed input circuitry yields excellent dc performance. Su-
perior dynamic performance is achieved, yet quiescent cur-
rent is held to under 2.5mA per amplifier. The OPA2107 is
unity-gain stable.
The OPA2107 is available in DIP-8 and SO-8 packages.
+V
S
(8)
–In
(2, 6)
+In
(3, 5)
Cascode
Output
(1, 7)
–V
S
(4)
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 © 1989-2003, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage ...................................................................................
±18V
Input Voltage Range .....................................................................
±V
S
±2V
Differential Input Voltage ....................................................... Total V
S
±4V
Operating Temperature
P and U Packages ........................................................ –25°C to + 85°C
Storage Temperature
P and U Packages ....................................................... –40°C to +125°C
Output Short Circuit to Ground (T
A
= +25°C) ........................... Continuous
Junction Temperature .................................................................... +175°C
Lead Temperature
P Package (soldering, 10s) ......................................................... +300°C
U Package, SOIC (3s) ................................................................ +260°C
NOTE: Stresses above these ratings may cause permanent damage.
PIN CONFIGURATION
Top View
DIP, SO
Out A 1
–In A 2
+In A 3
A
B
8 +V
S
7 Out B
6 –In B
5 +In B
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 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.
–V
S
4
PACKAGE/ORDERING INFORMATION
PACKAGE
DESIGNATOR
(1)
P
D
SPECIFIED
TEMPERATURE
RANGE
–25°C to +85°C
–25°C to +85°C
PACKAGE
MARKING
OPA2107AP
OPA2107AU
ORDERING
NUMBER
OPA2107AP
OPA2107AU
OPA2107AU/2K5
TRANSPORT
MEDIA, QUANTITY
Tube, 50
Tube, 100
Tape and Reel, 2500
PRODUCT
OPA2107
OPA2107
PACKAGE-LEAD
DIP-8
SO-8
"
"
"
"
"
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
2
OPA2107
www.ti.com
SBOS161A
ELECTRICAL CHARACTERISTICS
At T
A
= +25°C, V
S
=
±15V,
unless otherwise noted.
OPA2107AP, AU
PARAMETER
OFFSET VOLTAGE
(1)
Input Offset Voltage
Over Specified Temperature
Average Drift Over Specified Temperature
Power Supply Rejection
INPUT BIAS CURRENT
(1)
Input Bias Current
Over Specified Temperature
Input Offset Current
Over Specified Temperature
INPUT NOISE
Voltage: f = 10Hz
f = 100Hz
f = 1kHz
f = 10kHz
BW = 0.1 to 10Hz
BW = 10 to 10kHz
Current: f = 0.1Hz thru 20kHz
BW = 0.1Hz to 10Hz
INPUT IMPEDANCE
Differential
Common-Mode
INPUT VOLTAGE RANGE
Common-Mode Input Range
Over Specified Temperature
Common-Mode Rejection
OPEN-LOOP GAIN
Open-Loop Voltage Gain
Over Specified Temperature
DYNAMIC RESPONSE
Slew Rate
Settling Time: 0.1%
0.01%
Gain Bandwidth Product
THD + Noise
Channel Separation
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Current
OUTPUT
Voltage Output
Over Specified Temperature
Short Circuit Current
Output Resistance, Open-Loop
Capacitive Load Stability
TEMPERATURE RANGE
Specification
Operating
Storage
Thermal Resistance (
θ
J-A
)
DIP-8
SO-8
NOTE: (1) Specified with devices fully warmed up.
R
L
= 2kΩ
±10.5
±10.2
80
82
80
13
CONDITION
MIN
TYP
MAX
UNITS
V
CM
= 0V
V
S
=
±10
to
±18V
V
CM
= 0V
V
CM
= 0V
80
0.1
0.5
3
96
4
0.25
1
1
2
10
mV
mV
µV/°C
dB
pA
nA
pA
nA
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
µVp-p
µVrms
fA/√Hz
fAp-p
Ω
|| pF
Ω
|| pF
V
V
dB
dB
dB
V/µs
µs
µs
MHz
%
dB
V
V
mA
V
V
mA
Ω
pF
10
1.5
8
1
R
S
= 0
30
12
9
8
1.2
0.85
1.2
23
10
13
|| 2
10
14
|| 4
±11
±10.5
94
96
94
18
1.5
2
4.5
0.001
120
±15
±4.5
±12
±11.5
±40
70
1000
+85
+85
+125
90
175
V
CM
=
±10V
V
O
=
±10V,
R
L
= 2kΩ
G = +1
G = –1, 10V Step
G = 100
G = +1, f = 1kHz
f = 100Hz, R
L
= 2kΩ
±4.5
±11
±10.5
±10
1MHz
G = +1
–25
–25
–40
°C
°C
°C
°C/W
°C/W
OPA2107
SBOS161A
www.ti.com
3
TYPICAL CHARACTERISTICS
T
A
= +25°C, V
S
=
±15V
unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
100
1k
TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY
at 1kHz vs SOURCE RESISTANCE
Voltage Noise, E
O
(n/V/ Hz)
E
O
R
S
Voltage Noise (nV/ Hz)
100
Voltage Noise
Current Noise
10
Current Noise (ƒA/ Hz)
100
OPA2107 + Resistor
10
10
Current Noise
1
1
10
100
1k
Frequency (Hz)
10k
100k
1M
Voltage Noise
1
Resistor Noise Only
0.1
1
100
1k
10k
100k
1M
10M
100M
Source Resistance (
Ω
)
INPUT BIAS AND OFFSET CURRENT
vs TEMPERATURE
10nA
10nA
10
INPUT BIAS AND OFFSET CURRENT
vs INPUT COMMON-MODE VOLTAGE
10
1nA
Bias Current (pA)
1nA
Offset Current (pA)
Bias Current (pA)
Offset Current
1
1
100
Bias Current
10
100
10
0.1
0.1
1
Offset Current
1
1
0.1
–50
–25
0
+25
+50
+75
+100
0.1
+125
0.01
–15
–10
–5
0
+5
+10
+15
Common-Mode Voltage (V)
0.01
Ambient Temperature (°C)
POWER SUPPLY AND COMMON-MODE
REJECTION vs FREQUENCY
120
+PSR
100
100
–PSR
CMR
80
60
40
20
0
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
120
COMMON-MODE REJECTION
vs INPUT COMMON-MODE VOLTAGE
110
Common-Mode Rejection (dB)
100
PSR, CMR (dB)
80
60
40
20
0
90
80
70
–15
–10
–5
0
+5
+10
+15
Common-Mode Voltage (V)
4
OPA2107
www.ti.com
SBOS161A
Offset Current (pA)
TYPICAL CHARACTERISTICS
(Cont.)
T
A
= +25°C, V
S
=
±15V
unless otherwise noted.
OPEN-LOOP FREQUENCY RESPONSE
120
100
Voltage Gain (dB)
MAXIMUM OUTPUT VOLTAGE SWING
vs FREQUENCY
0
R
L
= 2kΩ
C
L
= 100pF
30
Phase Shift (Degrees)
80
60
40
20
0
1
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
–180
Output Voltage (Vp-p)
–45
20
R
L
= 2k
Ω
φ
–90
A
OL
10
–135
0
10k
100k
Frequency (Hz)
1M
10M
GAIN-BANDWIDTH AND SLEW RATE
vs TEMPERATURE
8
25
GAIN-BANDWIDTH AND SLEW RATE
vs SUPPLY VOLTAGE
6
A
V
= +100
R
L
= 2k
Ω
22
Gain-Bandwidth (MHz)
Gain-Bandwidth (MHz)
6
Slew Rate
4
Gain-Bandwidth
20
Slew Rate (V/µs)
20
Slew Rate (V/µs)
15
5
Slew Rate
18
2
10
16
Gain-Bandwidth
0
–50
–25
0
+25
+50
+75
+100
Ambient Temperature (°C)
5
+125
4
5
10
15
20
Supply Voltage (±V
S
)
14
SETTLING TIME vs CLOSED-LOOP GAIN
5
7
SUPPLY CURRENT vs TEMPERATURE
4
0.01%
V
O
= 10V Step
2
R
L
= 2k
Ω
0.1%
C
L
= 100pF
Supply Current (mA)
6
Total of Both Op Amps
5
Settling Time (µs)
3
1
4
0
–1
–10
–100
–1000
Closed-Loop Gain (V/V)
3
–50
–25
0
+25
+50
+75
+100
+125
Ambient Temperature (°C)
OPA2107
SBOS161A
www.ti.com
5
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