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OP221GS Datasheet

  • OP221GS

  • Dual Low Power Operational Amplifier, Single or Dual Supply

  • 192.70KB

  • 12頁

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a
FEATURES
Excellent TCVos Match, 2 V/ C Max
Low Input Offset Voltage, 150 V Max
Low Supply Current, 550 A Max
Single Supply Operation, 5 V to 30 V
Low Input Offset Voltage Drift, 0.75 V/ C
High Open-Loop Gain, 1500 V/mV Min
High PSRR, 3 V/V
Wide Common-Mode Voltage
Range, V鈥?to within 1.5 V of V+
Pin Compatible with 1458, LM158, LM2904
Available in Die Form
Dual Low Power Operational Amplifier,
Single or Dual Supply
OP221
PIN CONNECTIONS
8-Lead SO
(S-Suffix)
+IN A
1
V鈥?/div>
2
+IN B
3
鈥揑N B
4
8
7
6
5
8-Lead
HERMETIC DIP
(Z-Suffix)
鈥揑N A
OUT A
V+
OUT B
OUT A
1
鈥揑N A
2
+IN A
3
V鈥?/div>
4
8
7
6
5
V+
OUT B
鈥揑N B
+IN B
NC = NO CONNECT
NC = NO CONNECT
GENERAL DESCRIPTION
The OP221 is a monolithic dual operational amplifier that can
be used either in single or dual supply operation. The wide
supply voltage range, wide input voltage range, and low supply
current drain of the OP221 make it well-suited for operation
from batteries or unregulated power supplies.
The excellent specifications of the individual amplifiers combined
with the tight matching and temperature tracking between channels
provide high performance in instrumentation amplifier designs.
The individual amplifiers feature very 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 vs. tem-
perature, non-inverting bias currents, and common-mode rejection.
SIMPLIFIED SCHEMATIC
V+
Q11
Q12
Q3
鈥揑N
+IN
Q7
Q1
Q4
Q2
Q9
Q10
Q4
Q27
Q29
Q26
OUTPUT
Q28
Q5
Q6
Q13
NULL
*
Q33
V鈥?/div>
*
ACCESSIBLE IN CHIP FORM ONLY
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.
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
漏 Analog Devices, Inc., 2002

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