Precision Micropower
Single-Supply Operational Amplifiers
a
OP777/OP727/OP747
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
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
8-Lead MSOP
(RM-8)
14-Lead SOIC
(R-14)
1
8
NC
ꢂIN
ꢃIN
Vꢂ
NC
V+
OUT
NC
OUT A
–IN A
ꢃIN A
Vꢃ
1
2
3
4
5
6
7
14
13
12
11
10
9
OUT D
–IN D
ꢃIN D
V–
OP777
4
5
No Phase Reversal
NC = NO CONNECT
OP747
TOP VIEW
(Not to Scale)
APPLICATIONS
Current Sensing (Shunt)
Line or Battery-Powered Instrumentation
Remote Sensors
ꢃIN B
–IN B
OUT B
ꢃIN C
–IN C
OUT C
8-Lead SOIC
(R-8)
8
Precision Filters
OP727 SOIC Pin-Compatible with LT1013
NC
NC
1
2
3
4
8
7
6
5
OP777
14-Lead TSSOP
(RU-14)
ꢂIN
V+
GENERAL DESCRIPTION
+IN
OUT
NC
The OP777 , OP727 , and OP747 are precision single , dual,
and quad rail-to-rail output single- supply amplifiers featuring
micropoweroperationandrail-to-railoutputranges. These
amplifier sprovideimprovedperformanceovertheindustry -standard
OP07with 15 V supplies , andofferthefurtheradvantageoftrue
single-supplyoperationdownto2.7V , andsmallerpackage
options than any other high-voltage precision bipolar amplifier.
Outputs are stable with capacitiveloadsofover 500pF. Supply
currentis lessthan300 µAperamplifierat5V. 500 Ω seriesresis-
tors protect the inputs, allowing input signal levels several volts above
the positive supply without phase reversal.
Vꢂ
OUT A
–IN A
ꢃIN A
Vꢃ
1
2
3
4
5
6
7
14
13
12
11
10
9
OUT D
–IN D
ꢃIN D
V–
NC = NO CONNECT
8-Lead TSSOP
(RU-8)
OP747
TOP VIEW
(Not to Scale)
ꢃIN B
–IN B
OUT B
ꢃIN C
–IN C
OUT C
1
2
3
4
8
7
6
5
OUT A
–IN A
Vꢃ
8
OP727
TOP VIEW
OUT B
–IN B
ꢃIN B
ꢃIN A
(Not to Scale)
V–
Applicationsfortheseamplifiersincludebothline-poweredand
portable instrumentation, remote sensor signal conditioning, and
precision filters.
8-Lead SOIC
(R-8)
TheOP777,OP727,andOP747arespecifiedovertheextended
industrial (–40°C to +85°C) temperature range. The OP777,
single, isavailablein8-leadMSOPand8-leadSOICpackages.
The OP747, quad, is available in 14-lead TSSOP and narrow
14-leadSO packages.Surface-mountdevicesinTSSOPand MSOP
packagesareavailableintapeandreelonly.
ꢃIN A
V–
1
8
7
6
5
–IN A
2
3
4
OUT A
OP727
TOP VIEW
(Not to Scale)
ꢃIN B
–IN B
Vꢃ
OUT B
TheOP727,dual,isavailablein8-leadTSSOPand8-lead
SOICpackages.TheOP7278-leadSOICpinconfiguration
differsfromthestandard8-leadoperationalamplifierpinout.
NOTE: THIS PIN CONFIGURATION DIFFERS
FROM THE STANDARD 8-LEAD
OPERATIONAL AMPLIFIER PINOUT.
REV. C
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., 2001
ROCHESTER [ Rochester Electronics ]
