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
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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.
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Tel: 781/329-4700
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© Analog Devices, Inc., 2001