REV. B
a
OP290
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Precision, Low Power, Micropower
Dual Operational Amplifier
PIN CONNECTIONS
PDIP
(P-Suffix)
8
7
6
5
1
2
3
4
OP290
A
B
V+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V–
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
Ranges Include Ground
Low Supply Current (Per Amplifier), 20 A Max
High Output Drive, 5 mA Min
Low Input Offset Voltage, 200 V Max
High Open-Loop Gain, 700 V/mV Min
Outstanding PSRR, 5.6 V/V Max
Industry Standard 8-Lead Dual Pinout
Available in Die Form
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’s out-
put 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 able to deliver over 5 mA of output current
to a load. Input offset voltage is below 200 µV eliminating 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.
+IN
–IN
NULL
NULL
OUTPUT
V+
V
ELECTRONICALLY ADJUSTED ON CHIP
FOR MINIMUM OFFSET VOLTAGE
Figure 1. Simplified Schematic (one of two amplifiers is shown)
REV. B
–2–
OP290–SPECIFICATIONS
(@ V
S
= 1.5 V to 15 V, T
A
= 25C, unless otherwise noted.)
OP290G
Parameter Symbol Conditions Min Typ Max Unit
INPUT OFFSET VOLTAGE V
OS
125 500 µV
INPUT OFFSET CURRENT I
OS
V
CM
= 0 V 0.1 5 nA
INPUT BIAS CURRENT I
B
V
CM
= 0 V 4.0 25 nA
LARGE-SIGNAL A
VO
V
S
= ±15 V, V
O
= ±10 V
VOLTAGE GAIN R
L
= 100 k 400 600 V/mV
R
L
= 10 k 200 400 V/mV
R
L
= 2 k 100 200 V/mV
V+ = 5 V, V– = 0 V,
1 V < V
O
< 4 V
R
L
= 100 k 100 250 V/mV
R
L
= 10 k 70 140 V/mV
INPUT VOLTAGE RANGE
1
IVR V+ = 5 V, V– = 0 V 0/4 V
V
S
= ±5 V
1
–15/13.5 V
OUTPUT VOLTAGE SWING V
O
V
S
= ±5 V
R
L
= 10 kΩ±13.5 ±14.2 V
R
L
= 2 kΩ±10.5 ±11.5 V
V
OH
,
V
OL
V+ = 5 V, V– = 0 V 4.0 4.2 V
R
L
= 10k 10 50 µV
COMMON-MODE CMR V+ = 5 V, V– = 0 V 80 100 dB
REJECTION 0 V < V
CM
< 4 V
V
S
= ±15 V, 90 120 dB
–15 V < V
CM
< +13.5 V
POWER SUPPLY PSRR 3.2 10 µV/V
REJECTION RATIO
SUPPLY CURRENT I
SY
V
S
= ±1.5 V 19 30 µA
(All Amplifiers) V
S
= ±15 V 25 40 µA
CAPACITIVE LOAD A
V
= +1 650 pF
STABILITY No Oscillations
INPUT NOISE VOLTAGE
1
e
np-p
f
O
= 0.1 Hz to 10 Hz 3 µV p-p
V
S
= ±15 V
INPUT RESISTANCE R
IN
V
S
= ±15 V 30 M
DIFFERENTIAL-MODE
INPUT RESISTANCE R
INCM
V
S
= ±15 V 20 G
COMMON-MODE
SLEW RATE SR A
V
= +1 5 12 V/ms
V
S
= ±15 V
GAIN BANDWIDTH GBWP Vs = +15 V 20 kHz
PRODUCT V
S
= ±15 V
CHANNEL CS f
O
= 10 Hz 120 150 dB
SEPARATION
2
V
O
= 20 V p-p
V
S
= ±15 V
2
NOTES
1
Guaranteed by CMR test.
2
Guaranteed but not 100% tested.
Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS
REV. B
–3–
OP290
ELECTRICAL CHARACTERISTICS
(@ V
S
= 1.5 V to 15 V, –40C T
A
+85C for OP290G, unless otherwise noted.)
OP290G
Parameter Symbol Conditions Min Typ Max Unit
INPUT OFFSET VOLTAGE V
OS
200 750 µV
AVERAGE INPUT OFFSET TCV
OS
V
S
= ±15 V 1.2 µV/°C
VOLTAGE DRIFT
INPUT OFFSET CURRENT I
OS
V
CM
= 0 V 0.1 7 nA
INPUT BIAS CURRENT I
B
V
CM
= 0 V 4.2 25 nA
LARGE-SIGNAL A
VO
V
S
= ±5 V, V
O
= ±0 V
VOLTAGE GAIN R
L
= 100 k 300 600 V/mV
R
L
= 10 k 150 250 V/mV
R
L
= 2 k 75 125 V/mV
V+ = 5 V, V– = 0 V,
1 V < V
O
< 4 V
R
L
= 100 k 80 160 V/mV
R
L
= 10 k 40 90 V/mV
INPUT VOLTAGE RANGE
*
IVR V+ = 5 V, V– = 0 V 0/3.5 V
V
S
= +15 V
*
–15/+13.5 V
OUTPUT VOLTAGE SWING V
O
V
S
= ±15 V
R
L
= 10 kΩ±13 ±14 V
R
L
= 2 kΩ±10 ±11 V
V
OH
V+ = 5 V, V– = 0 V
R
L
= 2 k 3.9 4.1 V
V
OL
V+ = 5 V, V– = 0 V
R
L
= 10 k 10 100 µV
COMMON-MODE CMR V+ = 5 V, V– = 0 V, 80 100 dB
REJECTION 0 V < V
CM
< 3.5 V
V
S
= ±15 V
–15 V < V
CM
< 13.5 V 90 110 dB
POWER SUPPLY PSRR 5.6 15 µV/V
REJECTION RATIO
SUPPLY CURRENT I
SY
V
S
= ±1.5 V 24 50 µA
(All Amplifiers) V
S
= ±15 V 31 60 µA
*
Guaranteed by CMR test.
Specifications subject to change without notice.

OP290GPZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers Low VTG Dual Prec Micropower
Lifecycle:
New from this manufacturer.
Delivery:
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