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Precision Micropower
Single-Supply Operational Amplifiers
OP777/OP727/OP747
FEATURES
Low Offset Voltage: 100 V Max
Low Input Bias Current: 10 nA Max
Single-Supply Operation: 2.7 V to 30 V
Dual-Supply Operation: ؎1.35 V to ؎15 V
Low Supply Current: 300 A/Amp Max
Unity Gain Stable
No Phase Reversal
FUNCTIONAL BLOCK DIAGRAMS
14-Lead SOIC
(R-14)
8-Lead MSOP
(RM-8)
1
NC
؊IN
؉IN
V؊
8
NC
V+
OUT
NC
OP777
4
5
14
OUT D
–IN A 2
13
–IN D
؉IN A 3
NC = NO CONNECT
APPLICATIONS
Current Sensing (Shunt)
Line or Battery-Powered Instrumentation
Remote Sensors
Precision Filters
OUT A 1
12
؉IN D
V؉ 4
OP747
V–
TOP VIEW
(Not to Scale) 10
؉IN B 5
؉IN C
8-Lead SOIC
(R-8)
11
NC 1
؊IN 2
OP777
–IN B 6
9
–IN C
OUT B 7
8
OUT C
8 NC
7 V+
+IN 3
6 OUT
V؊ 4
14-Lead TSSOP
(RU-14)
5 NC
GENERAL DESCRIPTION
The OP777, OP727, and OP747 are precision single, dual,
and quad rail-to-rail output single supply amplifiers featuring
micropower operation and rail-to-rail output ranges. These
amplifiers provide improved performance over the industry-standard
OP07 with ±15 V supplies, and offer the further advantage of true
single-supply operation down to 2.7 V, and smaller package
options than any other high-voltage precision bipolar amplifier.
Outputs are stable with capacitive loads of over 500 pF. Supply
current is less than 300 µA per amplifier at 5 V. 500 Ω series resistors protect the inputs, allowing input signal levels several volts above
the positive supply without phase reversal.
OUT A 1
8-Lead TSSOP
(RU-8)
14
OUT D
–IN A 2
NC = NO CONNECT
13
–IN D
؉IN A 3
12
؉IN D
V؉ 4
OP747
TOP VIEW 11 V–
(Not to Scale) 10
؉IN B 5
؉IN C
–IN B 6
OUT A 1
8
7 OUT B
OP727
TOP VIEW
؉IN A 3 (Not to Scale) 6 –IN B
–IN A 2
V– 4
5
9
–IN C
7
8
OUT C
V؉
OUT B
؉IN B
Applications for these amplifiers include both line-powered and
portable instrumentation, remote sensor signal conditioning, and
precision filters.
The OP777, OP727, and OP747 are specified over the extended
industrial (–40°C to +85°C) temperature range. The OP777,
single, is available in 8-lead MSOP and 8-lead SOIC packages.
The OP727, dual, is available in an 8-lead TSSOP. The OP747,
quad, is available in 14-lead TSSOP and narrow 14-lead SO
packages. Surface-mount devices in TSSOP and MSOP packages
are available in tape and reel only.
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
which 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
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001
