LM108/LM108AQML
Operational Amplifiers
General Description
The LM108 is a precision operational amplifier having speci-
fications a factor of ten better than FET amplifiers over a
−55˚C to +125˚C temperature range.
The devices operate with supply voltages from ±2V to ±20V
and have sufficient supply rejection to use unregulated sup-
plies. Although the circuit is interchangeable with, and uses
the same compensation as the LM101A, an alternate com-
pensation scheme can be used to make it particularly insen-
sitive to power supply noise and to make supply bypass
capacitors unnecessary.
The low current error of the LM108 makes possible many
designs that are not practical with conventional amplifiers. In
fact, it operates from 10 MΩsource resistances, introducing
less error than devices like the 709 with 10 kΩsources.
Integrators with drifts less than 500 µV/sec and analog time
delays in excess of one hour can be made using capacitors
no larger than 1 µF.
Features
nMaximum input bias current of 3.0 nA over temperature
nOffset current less than 400 pA over temperature
nSupply current of only 300 µA, even in saturation
nGuaranteed drift characteristics
Ordering Information
NS PART NUMBER SMD PART NUMBER NS PACKAGE NUMBER PACKAGE DISCRIPTION
LM108AH/883 H08C 8LD Metal Can
LM108AJ-8/883 J08A 8LD CERDIP
LM108AJ/883 J14A 14LD CERDIP
LM108AWG/883 WG10A 10LD Ceramic SOIC
LM108AHRQML 5962R9863702QGA
100k rd(Si)
H08C 8LD Metal Can
LM108AHRQMLV 5962R9863702VGA
100k rd(Si)
H08C 8LD Metal Can
LM108AJ-8RQMLV 5962R9863702VPA
100k rd(Si)
J08A 8LD CERDIP
LM108AJRQML 5962R9863702QCA
100k rd(Si)
J14A 14LD CERDIP
LM108AJRQMLV 5962R9863702VCA
100k rd(Si)
J14A 14LD CERDIP
LM108AWGRQML 5962R9863702QZA
100k rd(Si)
WG10A 10LD Ceramic SOIC
LM108AWGRQMLV 5962R9863702VZA
100k rd(Si)
WG10A 10LD Ceramic SOIC
LM108AWRQML 5962R9863702QHA
100k rd(Si)
W10A 10LD CERPACK
LM108AWRQMLV 5962R9863702VHA
100k rd(Si)
W10A 10LD CERPACK
LM108H/883 H08C 8LD Metal Can
LM108J/883 J14A 14LD CERDIP
LM108J-8/883 J08A 8LD CERDIP
December 2005
LM108/LM108AQML Operational Amplifiers
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