The LM108 series are precision operational amplifiers hav-
ing specifications a factor of ten better than FET amplifiers
over a b 55 Degrees C to a 125 Degrees C temperature range.
The devices operate with supply voltages from 2V to
20V and have sufficient supply rejection to use unregulat-
ed 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 by-
pass capacitors unnecessary.
The low current error of the LM108 series makes possible
many designs that are not practical with conventional ampli-
fiers. In fact, it operates from 10 Mohm source resistances,
introducing less error than devices like the 709 with 10 kohm
sources. Integrators with drifts less than 500 mV/sec and
analog time delays in excess of one hour can be made us-
ing capacitors no larger than 1 mF.
The LM108 is guaranteed from b 55 Degrees C to a 125 Degrees C, the
LM208 from b 25 Degrees C to a 85 Degrees C, and the LM308 from 0 Degrees C to a 70 Degrees C.
Maximum input bias current of 3.0 nA over temperature
Offset current less than 400 pA over temperature
Supply current of only 300 mA, even in saturation
Guaranteed drift characteristics
LM308 OPERATIONAL AMPLIFIER
- Product Code: LM308 OPERATIONAL AMPLIFIER - BA16
- Availability: 1