ANALOG DEVICES OP290 Service Manual

Precision, Low Power, Micropower

www.BDTIC.com/ADI

a

FEATURES
Single-/Dual-Supply Operation, 1.6 V to 36 V, ⴞ0.8 V to ⴞ18 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 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 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.

Dual Operational Amplifier

OP290

PIN CONNECTIONS

PDIP

(P-Suffix)

OUT A

–IN A

+IN A

1

A

2

3

4

V–

OP290

V+

8

B

OUT B

7

–IN B

6

+IN B

5

+IN

–IN

NULL

ELECTRONICALLY ADJUSTED ON CHIP
FOR MINIMUM OFFSET VOLTAGE

NULL

Figure 1. Simplified Schematic (one of two amplifiers is shown)

REV. B

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. 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.

V+

OUTPUT

V

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] © 2003 Analog Devices, Inc. All rights reserved.

OP290–SPECIFICATIONS

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ELECTRICAL CHARACTERISTICS

(@ VS = ⴞ1.5 V to ⴞ15 V, TA = 25ⴗC, unless otherwise noted.)

OP290G

Parameter Symbol Conditions Min Typ Max Unit

INPUT OFFSET VOLTAGE V

INPUT OFFSET CURRENT I

INPUT BIAS CURRENT I

LARGE-SIGNAL A

OS

OS

B

VO

VOLTAGE GAIN R

VCM = 0 V 0.1 5 nA

VCM = 0 V 4.0 25 nA

VS = ±15 V, VO = ±10 V

= 100 kΩ 400 600 V/mV

L

R

= 10 kΩ 200 400 V/mV

L

R

= 2 kΩ 100 200 V/mV

L

125 500 µV

V+ = 5 V, V– = 0 V,
1 V < V
R
R

INPUT VOLTAGE RANGE1IVR V+ = 5 V, V– = 0 V 0/4 V

V

OUTPUT VOLTAGE SWING V

O

VS = ±5 V
R
R

V

OH, VOL

V+ = 5 V, V– = 0 V 4.0 4.2 V
R

< 4 V

O

= 100 kΩ 100 250 V/mV

L

= 10 kΩ 70 140 V/mV

L

1

= ±5 V

S

= 10 kΩ±13.5 ±14.2 V

L

= 2 kΩ±10.5 ±11.5 V

L

= 10kΩ 10 50 µV

L

–15/13.5 V

COMMON-MODE CMR V+ = 5 V, V– = 0 V 80 100 dB
REJECTION 0 V < V

V

= ±15 V, 90 120 dB

S

–15 V < V

CM

CM

< 4 V

< +13.5 V

POWER SUPPLY PSRR 3.2 10 µV/V
REJECTION RATIO

SUPPLY CURRENT I

SY

(All Amplifiers) V

VS = ±1.5 V 19 30 µA

= ±15 V 25 40 µA

S

CAPACITIVE LOAD AV = +1 650 pF
STABILITY No Oscillations

INPUT NOISE VOLTAGE

INPUT RESISTANCE R

1

e

np-p

IN

fO = 0.1 Hz to 10 Hz 3 µV p-p
V

= ±15 V

S

VS = ±15 V 30 MΩ

DIFFERENTIAL-MODE

INPUT RESISTANCE R

INCM

VS = ±15 V 20 GΩ

COMMON-MODE

SLEW RATE SR AV = +1 5 12 V/ms

V

= ±15 V

S

GAIN BANDWIDTH GBWP Vs = +15 V 20 kHz
PRODUCT V

CHANNEL CS fO = 10 Hz 120 150 dB
SEPARATION

NOTES

1

Guaranteed by CMR test.

2

Guaranteed but not 100% tested.

Specifications subject to change without notice.

2

= ±15 V

S

VO = 20 V p-p
VS = ±15 V

2

–2–

REV. B

OP290

www.BDTIC.com/ADI

ELECTRICAL CHARACTERISTICS

(@ VS = ⴞ1.5 V to ⴞ15 V, –40ⴗC ≤ TA ≤ +85ⴗC for OP290G, unless otherwise noted.)

OP290G

Parameter Symbol Conditions Min Typ Max Unit

INPUT OFFSET VOLTAGE V

OS

AVERAGE INPUT OFFSET TCV

OS

VS = ±15 V 1.2 µV/°C

200 750 µV

VOLTAGE DRIFT

INPUT OFFSET CURRENT I

INPUT BIAS CURRENT I

LARGE-SIGNAL A

OS

B

VO

VOLTAGE GAIN R

VCM = 0 V 0.1 7 nA

VCM = 0 V 4.2 25 nA

VS = ±5 V, VO = ±0 V

= 100 kΩ 300 600 V/mV

L

= 10 kΩ 150 250 V/mV

R

L

R

= 2 kΩ 75 125 V/mV

L

V+ = 5 V, V– = 0 V,

< 4 V

O

= 100 kΩ 80 160 V/mV

L

= 10 kΩ 40 90 V/mV

L

= +15 V

S

= 10 kΩ±13 ±14 V

L

= 2 kΩ±10 ±11 V

L

= 2 kΩ 3.9 4.1 V

L

= 10 kΩ 10 100 µV

L

*

–15/+13.5 V

INPUT VOLTAGE RANGE

*

OUTPUT VOLTAGE SWING V

1 V < V
R
R

IVR V+ = 5 V, V– = 0 V 0/3.5 V

V

O

VS = ±15 V
R
R

V

OH

V+ = 5 V, V– = 0 V
R

V

OL

V+ = 5 V, V– = 0 V
R

COMMON-MODE CMR V+ = 5 V, V– = 0 V, 80 100 dB
REJECTION 0 V < V

= ±15 V

V

S

–15 V < V

< 3.5 V

CM

< 13.5 V 90 110 dB

CM

POWER SUPPLY PSRR 5.6 15 µV/V
REJECTION RATIO

SUPPLY CURRENT I

SY

VS = ±1.5 V 24 50 µA

(All Amplifiers) VS = ±15 V 31 60 µA

*

Guaranteed by CMR test.

Specifications subject to change without notice.

REV. B

–3–

OP290

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ABSOLUTE MAXIMUM RATINGS

1

ORDERING GUIDE

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V

Differential Input Voltage . . . . [(V–) – 20 V] to [(V+) + 20 V]

Common-Mode Input Voltage . [(V–) – 20 V] to [(V+) + 20 V]

Output Short-Circuit Duration . . . . . . . . . . . . . . . . Indefinite

Storage Temperature Range

Model Range (mV)

OP290GP XIND 500 PDIP

Temperature V

P Package . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Operating Temperature Range

OP290G . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C

Junction Temperature (T

) . . . . . . . . . . . . . –65°C to +150°C

J

Lead Temperature Range (Soldering, 60 sec) . . . . . . . . 300°C

Package Type ␪

2

JA

␪

JC

Unit

8-Lead Plastic DIP (P) 96 37 °C/W

NOTES

1

Absolute Maximum Ratings applies to packaged part.

2

␪JA is specified for worst-case mounting conditions, i.e., ␪JA is specified for

device in socket for PDIP package.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the OP290 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.

TA = 25ⴗC

Max

OS

WARNING!

Package
Description

ESD SENSITIVE DEVICE

–4–

REV. B