Precision, Low Power, Micropower
Dual Operational Amplifier
OP290
FEATURES
Single-/dual-supply operation: 1.6 V to 36 V, ±0.8 V to ±18 V
True single-supply operation; input and output voltage
Input/output ranges include ground
Low supply current (per amplifier), 20 µA maximum
High output drive, 5 mA minimum
Low input offset voltage, 200 µV typical
High open-loop gain, 400 V/mV minimum
Outstanding PSRR, 5.6 µV/V maximum
Industry standard 8- ead dual pinout
PIN CONNECTIONS
OP290
OUT A
–IN A
+IN A
V–
1
2
3
4
8
V+
OUT B
–IN B
+IN B
00327-001
A
–
+
B
+
–
7
6
5
Figure 1. PDIP (P-Suffix)
GENERAL DESCRIPTION
The OP290 is a high performance micropower dual op amp that
operates from a single supply of 1.6 V to 36 V or from dual
supplies of ±0.8 V to ±18 V. Input voltage range includes the
negative rail allowing the OP290 to accommodate input signals
down to ground in single-supply operation. The OP290 output
swing also includes ground when operating from a single
supply, enabling zero-in, zero-out operation.
The OP290 draws less than 20 μA of quiescent supply current
per amplifier, while being able to deliver over 5 mA of output
current to a load. Input offset voltage is below 200 μV eliminat-
,
ing the need for external nulling. Gain exceeds 700,000 and
common-mode rejection is better than 100 dB. The power
supply rejection ratio of under 5.6 μV/V minimizes offset
voltage changes experienced in battery-powered systems. The
low offset voltage and high gain offered by the OP290 bring
precision performance to micropower applications. The
minimal voltage and current requirements of the OP290 suit it
for battery- and solar-powered applications, such as portable
instruments, remote sensors, and satellites. For a single op amp,
see the
OP90;
for a quad, see the
OP490.
V+
+IN
–IN
OUTPUT
NULL
NULL
ELECTRONICALLY ADJUSTED ON CHIP
FOR MINIMUM OFFSET VOLTAGE
Figure 2. Simplified Schematic (One of Two Amplifiers Is Shown)
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
www.analog.com
Tel: 781.329.4700
Fax: 781.461.3113 ©1988–2009 Analog Devices, Inc. All rights reserved.
00327-002
V–
OP290
TABLE OF CONTENTS
Features .............................................................................................. 1
Pin Connections ............................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics ............................................................. 3
Absolute Maximum Ratings............................................................ 5
ESD Caution .................................................................................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ........................................................................ 9
Battery-Powered Applications .....................................................9
Input Voltage Protection ..............................................................9
Single-Supply Output Voltage Range..........................................9
Applications Information .............................................................. 10
Temperature to 4 mA to 20 mA Transmitter .......................... 10
Variable Slew Rate Filter ............................................................ 11
Low Overhead Voltage Reference ............................................ 11
Outline Dimensions ....................................................................... 12
Ordering Guide .......................................................................... 12
REVISION HISTORY
4/09—Rev. B to Rev. C
Updated Format .................................................................. Universal
Changes to Features Section and Figure 2..................................... 1
Changes to Input Voltage Range, Vs = ±5 V Parameter,
Table 1 ................................................................................................ 3
Changes to Figure 7 and Figure 8 ................................................... 6
Deleted Figure 2; Renumbered Sequentially................................. 7
Changes to Figure 9 .......................................................................... 7
Changed Applications Information Heading to Theory of
Operation ........................................................................................... 9
Changes to Figure 19 ........................................................................ 9
Changed Applications Heading to Applications Information .. 10
Changes to Temperature to 4 mA to 20 mA Transmitter Section,
Figure 20, and Table 5 .................................................................... 10
Changes to Figure 21 and Figure 22 ............................................. 11
Updated Outline Dimensions ....................................................... 12
Changes to Ordering Guide .......................................................... 12
12/03—Rev. A to Rev. B
Deleted OP290E and OP290F........................................... Universal
Replaced Pin Connections with PDIP ............................................1
Deleted Electrical Characteristics ...................................................3
Changes to Absolute Maximum Ratings ........................................4
Changes to Ordering Guide .............................................................4
Changes to TPC 6 ..............................................................................5
Change to Single Supply Output Voltage Range ...........................7
Changes to Figure 5 ...........................................................................8
Changes to Figure 6 ...........................................................................9
Change to Low Overhead Voltage Reference ................................9
Updated Outline Dimensions ....................................................... 10
1/02—Rev. 0 to Rev. A
Edits to Ordering Information ........................................................1
Edits to Pin Connections ..................................................................1
Edits to Absolute Maximum Ratings ..............................................2
Edits to Package Type .......................................................................2
Edits to Wafer Test Limits ................................................................5
Edits to Dice Characteristics ............................................................5
Rev. C | Page 2 of 12
OP290
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
S
= ±1.5 V to ±15 V, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter
INPUT OFFSET VOLTAGE
INPUT OFFSET CURRENT
INPUT BIAS CURRENT
LARGE-SIGNAL VOLTAGE GAIN
Symbol
V
OS
I
OS
I
B
A
VO
Conditions
V
CM
= 0 V
V
CM
= 0 V
V
S
= ±15 V, V
O
= ±10 V
R
L
= 100 kΩ
R
L
= 10 kΩ
R
L
= 2 kΩ
V+ = 5 V, V− = 0 V, 1 V < V
O
< 4 V
R
L
= 100 kΩ
R
L
= 10 kΩ
V+ = 5 V, V − = 0 V
V
S
= ±5 V
V
S
= ±5 V
R
L
= 10 kΩ
R
L
= 2 kΩ
V+ = 5 V, V− = 0 V
R
L
= 10 kΩ
V+ = 5 V, V− = 0 V, 0 V < V
CM
< 4 V
V
S
= ±15 V, −15 V < V
CM
< +13.5 V
V
S
= ±1.5 V
V
S
= ±15 V
A
V
= +1, no oscillations
f
O
= 0.1 Hz to 10 Hz, V
S
= ±15 V
V
S
= ±15 V
V
S
= ±15 V
A
V
= +1, V
S
= ±15 V
V
S
= ±15 V
f
O
= 10 Hz, V
O
= 20 V p-p, V
S
= ±15 V
Min
OP290G
Typ
125
0.1
4.0
600
400
200
250
140
Max
500
5
25
Unit
μV
nA
nA
V/mV
V/mV
V/mV
V/mV
V/mV
V
V
V
V
V
μV
dB
dB
μV/V
μA
μA
pF
μV p-p
MΩ
GΩ
V/ms
kHz
dB
400
200
100
100
70
0/4
−5/+3.5
±13.5
±10.5
4.0
10
80
90
INPUT VOLTAGE RANGE
1
OUTPUT VOLTAGE SWING
IVR
V
O
V
OH
, V
OL
COMMON-MODE REJECTION
POWER SUPPLY REJECTION RATIO
SUPPLY CURRENT (ALL AMPLIFIERS)
CAPACITIVE LOAD STABILITY
INPUT NOISE VOLTAGE
1
INPUT RESISTANCE DIFFERENTIAL MODE
INPUT RESISTANCE COMMON MODE
SLEW RATE
GAIN BANDWIDTH PRODUCT
CHANNEL SEPARATION
2
1
2
CMR
PSRR
I
SY
e
n
p-p
R
IN
R
INCM
SR
GBWP
CS
5
120
±14.2
±11.5
4.2
50
100
120
3.2
19
25
650
3
30
20
12
20
150
10
30
40
Guaranteed by CMR test.
Guaranteed but not 100% tested.
Rev. C | Page 3 of
12
OP290
V
S
= ±1.5 V to ±15 V, −40°C ≤ T
A
≤ +85°C, unless otherwise noted.
Table 2.
Parameter
INPUT OFFSET VOLTAGE
AVERAGE INPUT OFFSET VOLTAGE DRIFT
INPUT OFFSET CURRENT
INPUT BIAS CURRENT
LARGE-SIGNAL VOLTAGE GAIN
Symbol
V
OS
TCV
OS
I
OS
I
B
A
VO
Conditions
V
S
= ±15 V
V
CM
= 0 V
V
CM
= 0 V
V
S
= ±5 V, V
O
= ±0 V
R
L
= 100 kΩ
R
L
= 10 kΩ
R
L
= 2 kΩ
V+ = 5 V, V− = 0 V, 1 V < V
O
< 4 V
R
L
= 100 kΩ
R
L
= 10 kΩ
V+ = 5 V, V− = 0 V
V
S
= +15 V
V
S
= ±15 V
R
L
= 10 kΩ
R
L
= 2 kΩ
V+ = 5 V, V − = 0 V,
R
L
= 2 kΩ
V+ = 5 V, V − = 0 V, R
L
= 10 kΩ
V+ = 5 V, V − = 0 V, 0 V < V
CM
< 3.5 V
V
S
= ± 15 V, −15 V < V
CM
< 13.5 V
V
S
= ±1.5 V
V
S
= ±15 V
Min
OP290G
Typ
200
1.2
0.1
4.2
600
250
125
160
90
Max
750
7
25
Unit
μV
μV/°C
nA
nA
V/mV
V/mV
V/mV
V/mV
V/mV
V
V
V
V
V
μV
dB
dB
μV/V
μA
μA
300
150
75
80
40
0/3.5
–15/+13.5
±13
±10
3.9
80
90
INPUT VOLTAGE RANGE
1
OUTPUT VOLTAGE SWING
IVR
V
O
COMMON-MODE REJECTION
POWER SUPPLY REJECTION RATIO
SUPPLY CURRENT (ALL AMPLIFIERS)
1
V
OH
V
OL
CMR
PSRR
I
SY
±14
±11
4.1
10
100
110
5.6
24
31
100
15
50
60
Guaranteed by CMR test.
Rev. C | Page 4 of
12
OP290
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
1
Supply Voltage
Differential Input Voltage
Common-Mode Input Voltage
Output Short-Circuit Duration
Storage Temperature Range
Operating Temperature Range
Junction Temperature Range (T
J
)
Lead Temperature
(Soldering, 60 sec)
1
Rating
±18 V
[(V−) − 20 V] to [(V+) + 20 V]
[(V−) − 20 V] to [(V+) + 20 V]
Indefinite
−65°C to +150°C
−40°C to +85°C
−65°C to +150°C
300°C
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Table 4.
Package Type
8-Lead Plastic DIP (P)
1
θ
JA1
96
θ
JC
37
Unit
°C/W
Absolute maximum ratings applies to packaged part.
θ
JA
is specified for worst-case mounting conditions, that is, θ
JA
is specified for
device in socket for PDIP package.
ESD CAUTION
Rev. C | Page 5 of
12
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