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Features
Maximum input bias current of 3.0 nA over temperature
Offset current less than 400 pA over temperature
Supply current of only 300 μA, even in saturation
Guaranteed drift characteristics
Description The LM108 series are precision operational amplifiers having specifications 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 supplies.
Although the circuit is interchangeable with and uses the same compensation as the LM101A, an alternate compensation scheme
can be used to make it particularly insensitive to power supply noise and to make supply bypass capacitors unnecessary.
The low current error of the LM108 series makes possible many designs that are not practical with conventional amplifiers.
In fact, it operates from 10 MΩ source resistances, introducing less error than devices like the 709 with 10 kΩ sources. 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.
The LM108 is guaranteed from −55°C to +125°C, the LM208 from −25°C to +85°C, and the LM308 from 0°C to +70°C.
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Also Recommended
| LMP2012QML▲ | Military Temp Range, Better Precision, Rail-to-Rail Output |
| LMC6482▲ | Military Temp Range, Dual, Rail-to-Rail In And Out, Similar Precision |
| LMC6484▲ | Military Temp Range, Quad, Rail-to-Rail In And Out, Similar Precision |
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