Dual Micropower
Operational Amplifier
a
OP220
FEATURES
PIN CONFIGURATIONS
Excellent TCVOS Match: 2 V/؇C Max
Low Input Offset Voltage: 150 V Max
Low Supply Current: 100 A
8-Lead Hermatic Dip
8-Lead Plastic Dip
(P-Suffix)
(Z-Suffix)
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+
OUT A
–IN A
+IN A
V–
OUT A
–IN A
+IN A
V–
V+
V+
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
OP220
OP220
OUT B
OUT B
–IN B
+IN B
–IN B
+IN B
Pin Compatible with 1458, LM158, and LM2904
Available in Die Form
8-Lead SOIC
(S-Suffix)
8-Lead TO-99
(J-Suffix)
GENERAL DESCRIPTION
+IN A
V–
–IN A
The OP220 is a monolithic dual operational amplifier that can
be used either in single or dual supply operation. T he low offset
voltage and input offset voltage tracking as low as 1.0 mV/∞C,
make this the first micropower precision dual operational amplifier.
1
8
7
6
5
OUT A
2
3
4
V+
+IN B
–IN B
OUT B
T he 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. T he 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.
V+
Q11
Q28
Q3
Q4
Q12
Q2
Q26
–IN
+IN
Q1
OUTPUT
Q9
Q10
Q27
Q8
Q7
Q29
Q6
Q5
Q13
NULL*
Q33
V–
*ACESSIBLE IN CHIP FORM ONLY
Figure 1. Simplified Schematic
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.com
© Analog Devices, Inc., 2002