REV. A

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.

a

OP220

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2002

8-Lead Hermatic Dip

(Z-Suffix)

OUT A

–IN A

+IN A

V–

V+

OUT B

–IN B

+IN B

1

2

3

4

5

6

7

8

OP220

Dual Micropower

Operational Amplifier

+IN

V+

–IN

Q1

Q3

Q4

Q5

Q6

Q7

Q9

Q11

Q10

Q12

Q13

Q8

Q26

Q27

Q28

Q29

V–

OUTPUT

Q33

Q2

NULL*

*ACESSIBLE IN CHIP FORM ONLY

Figure 1. Simplified Schematic

FEATURES

V/ C Max

Low Input Offset Voltage: 150

V Max

Low Supply Current: 100

A

Single-Supply Operation: 5 V to 30 V

Low Input Offset Voltage Drift: 0.75

V/ C Max

High Open-Loop Gain: 2,000 V/mV

High PSRR: 3

V/V

Low Input Bias Current: 12 nA

Wide Common-Mode Voltage Range: V– to Within

1.5 V of V+

Pin Compatible with 1458, LM158, and LM2904

Available in Die Form

GENERAL DESCRIPTION

The OP220 is a monolithic dual operational amplifier that can

be used either in single or dual supply operation. The low offset

voltage and input offset voltage tracking as low as 1.0

mV/∞C,

make this the first micropower precision dual operational amplifier.

The excellent specifications of the individual amplifiers com-

bined with the tight matching and temperature tracking between

channels provides high performance in instrumentation ampli-

fier designs. The individual amplifiers feature extremely low

input offset voltage, low offset voltage drift, low noise voltage,

and low bias current. They are fully compensated and protected.

Matching between channels is provided on all critical parameters

including input offset voltage, tracking of offset voltage versus

temperature, noninverting bias currents, and common-mode

rejection ratios.

PIN CONFIGURATIONS

8-Lead Plastic Dip

(P-Suffix)

OUT A

–IN A

+IN A

V–

V+

OUT B

–IN B

+IN B

1

2

3

4

5

6

7

8

OP220

8-Lead SOIC

(S-Suffix)

+IN A

V–

+IN B

–IN B

–IN A

OUT A

V+

OUT B

1

2

3

4

5

6

7

8

8-Lead TO-99

(J-Suffix)