1
OPA2107
FEATURES
q
VERY LOW NOISE: 8nV/
Hz at 10kHz
q
LOW V
OS
: 1mV max
q
LOW DRIFT: 10
V/
C max
q
LOW I
B
: 10pA max
q
FAST SETTLING TIME: 2
s to 0.01%
q
UNITY-GAIN STABLE
Precision Dual
Difet
OPERATIONAL AMPLIFIER
OPA2107
BIFET
National Semiconductor
Difet
Burr-Brown Corp.
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 in-
put bias currents to very low levels without sacrificing
other important parameters, such as input offset volt-
age, drift and noise. Laser-trimmed input circuitry
yields excellent DC performance. Superior dynamic
performance is achieved, yet quiescent current is held
to under 2.5mA per amplifier. The OPA2107 is unity-
gain stable.
The OPA2107 is available in plastic DIP and SOIC
packages. Industrial temperature range versions are
available.
Cascode
In
(2, 6)
+In
(3, 5)
+V
(8)
S
Output
(1, 7)
V
(4)
S
APPLICATIONS
q
DATA ACQUISITION
q
DAC OUTPUT AMPLIFIER
q
OPTOELECTRONICS
q
HIGH-IMPEDANCE SENSOR AMPS
q
HIGH-PERFORMANCE AUDIO CIRCUITRY
q
MEDICAL EQUIPMENT, CT SCANNERS
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111
Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
OPA2107
OPA2107
1989 Burr-Brown Corporation
PDS-863E
Printed in U.S.A. April, 1998
2
OPA2107
SPECIFICATIONS
At T
A
= +25
C, V
S
=
15V, unless otherwise noted.
OPA2107AP, AU
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
(1)
Input Offset Voltage
V
CM
= 0V
100
1
mV
Over Specified Temperature
0.5
2
mV
Average Drift Over Specified Temperature
3
10
V/
C
Power Supply Rejection
V
S
=
10 to
18V
80
96
dB
INPUT BIAS CURRENT
(1)
Input Bias Current
V
CM
= 0V
4
10
pA
Over Specified Temperature
0.25
1.5
nA
Input Offset Current
V
CM
= 0V
1
8
pA
Over Specified Temperature
1
nA
INPUT NOISE
Voltage: f = 10Hz
R
S
= 0
30
nV/
Hz
f = 100Hz
12
nV/
Hz
f = 1kHz
9
nV/
Hz
f = 10kHz
8
nV/
Hz
BW = 0.1 to 10Hz
1.2
Vp-p
BW = 10 to 10kHz
0.85
Vrms
Current: f = 0.1Hz thru 20kHz
1.2
fA/
Hz
BW = 0.1Hz to 10Hz
23
fAp-p
INPUT IMPEDANCE
Differential
10
13
|| 2
|| pF
Common-Mode
10
14
|| 4
|| pF
INPUT VOLTAGE RANGE
Common-Mode Input Range
10.5
11
V
Over Specified Temperature
10.2
10.5
V
Common-Mode Rejection
V
CM
=
10V
80
94
dB
OPEN-LOOP GAIN
Open-Loop Voltage Gain
V
O
=
10V, R
L
= 2k
82
96
dB
Over Specified Temperature
80
94
dB
DYNAMIC RESPONSE
Slew Rate
G = +1
13
18
V/
s
Settling Time: 0.1%
G = 1, 10V Step
1.5
s
0.01%
2
s
Gain Bandwidth Product
G = 100
4.5
MHz
THD + Noise
G = +1, f = 1kHz
0.001
%
Channel Separation
f = 100Hz, R
L
= 2k
120
dB
POWER SUPPLY
Specified Operating Voltage
15
V
Operating Voltage Range
4.5
V
Current
4.5
mA
OUTPUT
Voltage Output
R
L
= 2k
11
12
V
Over Specified Temperature
10.5
11.5
V
Short Circuit Current
10
40
mA
Output Resistance, Open-Loop
1MHz
70
Capacitive Load Stability
G = +1
1000
pF
TEMPERATURE RANGE
Specification
25
+85
C
Operating
25
+85
C
Storage
40
+125
C
Thermal Resistance (
J-A
)
8-Pin DIP
90
C/W
8-Lead Surface Mount
175
C/W
NOTE: (1) Specified with devices fully warmed up.
3
OPA2107
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.
PIN CONFIGURATION
Top View
DIP, SOIC
8
7
1
4
5
3
2
6
V
S
Out B
+V
A
B
S
Out A
In B
+In B
In A
+In A
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.
PACKAGE
DRAWING
TEMPERATURE
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
OPA2107AP
Plastic DIP
006
25 to +85
C
OPA2107AU
SO-8 SOIC
182
25 to +85
C
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
PACKAGE/ORDERING INFORMATION
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.
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.
4
OPA2107
TYPICAL PERFORMANCE CURVES
T
A
= +25
C, V
S
=
15V unless otherwise noted.
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
100
10
1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
Voltage Noise (nV/ Hz)
Voltage Noise
Voltage Noise
100
10
1
0.1
Current Noise (A/ Hz)
Current Noise
Current Noise
E
O
R
S
TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY
at 1kHz vs SOURCE RESISTANCE
1k
100
10
1
100
1k
10k
100k
1M
10M
100M
Source Resistance ( )
Voltage Noise, E (n/V/ Hz)
O
OPA2107 + Resistor
Resistor Noise Only
Bias Current
Offset Current
INPUT BIAS AND OFFSET CURRENT
vs TEMPERATURE
10nA
1nA
1
50
25
0
+25
+50
+75
Ambient Temperature (C)
Bias Current (pA)
10nA
1nA
0.1
100
10
1
0.1
+100
+125
100
10
1
Offset Current (pA)
INPUT BIAS AND OFFSET CURRENT
vs INPUT COMMON-MODE VOLTAGE
10
1
0.1
0.01
Bias Current (pA)
15
10
5
0
+5
+10
+15
Common-Mode Voltage (V)
10
1
0.1
0.01
Offset Current (pA)
Offset Current
POWER SUPPLY AND COMMON-MODE
REJECTION vs FREQUENCY
120
100
80
60
40
20
0
10
100
1k
10k
100k
1M
10M
PSR, CMR (dB)
120
100
80
60
40
20
0
PSR
CMR
+PSR
Frequency (Hz)
COMMON-MODE REJECTION
vs INPUT COMMON-MODE VOLTAGE
110
100
90
80
70
15
10
5
0
+5
+10
+15
Common-Mode Rejection (dB)
Common-Mode Voltage (V)
5
OPA2107
MAXIMUM OUTPUT VOLTAGE SWING
vs FREQUENCY
30
20
10
0
Output Voltage (Vp-p)
10k
100k
1M
10M
Frequency (Hz)
R = 2k
L
GAIN-BANDWIDTH AND SLEW RATE
vs TEMPERATURE
8
6
4
2
0
50
25
0
+25
+50
+75
+100
+125
Ambient Temperature (C)
Gain-Bandwidth (MHz)
25
20
15
10
5
Slew Rate (V/s)
Slew Rate
Gain-Bandwidth
GAIN-BANDWIDTH AND SLEW RATE
vs SUPPLY VOLTAGE
6
5
4
5
10
15
20
Supply Voltage (V )
S
Gain-Bandwidth (MHz)
22
20
18
16
14
Slew Rate (V/s)
Gain-Bandwidth
Slew Rate
A = +100
R = 2k
V
L
SETTLING TIME vs CLOSED-LOOP GAIN
5
4
3
2
1
0
1
10
100
1000
Closed-Loop Gain (V/V)
Settling Time (s)
0.1%
V = 10V Step
R = 2k
C = 100pF
O
L
L
0.01%
SUPPLY CURRENT vs TEMPERATURE
7
6
5
4
3
50
25
0
+25
+50
+75
+100
+125
Ambient Temperature (C)
Supply Current (mA)
Total of Both Op Amps
TYPICAL PERFORMANCE CURVES
(CONT)
T
A
= +25
C, V
S
=
15V unless otherwise noted.
OPEN-LOOP FREQUENCY RESPONSE
120
100
80
60
40
20
0
1
10
100
1k
10k
100k
1M
10M
0
45
90
135
180
Voltage Gain (dB)
Phase Shift (Degrees)
Frequency (Hz)
R = 2k
L
C = 100pF
L
A
OL
PDF 
ZIP