Produktbeskrivning
The LM308 is a precision operational amplifier having specifications a factor of ten better than FET amplifiers over a -55C to +125C temperature range. The device operates with supply voltages from +/-2V to +/-20V and has sufficient supply rejection to use unregulated supplies. Although the circuit is interchangeable with and uses the same compensation as the LM301A, 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 LM308 makes possible many designs that are not practical with conventional amplifiers. 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/s and analog time delays in excess of one hour can be made using capacitors no larger than 1mF.
Features
* Maximum input bias current of 3.0nA over temperature
* Offset current less than 400pA over temperature
* Supply current of only 300mA, even in saturation
* Guaranteed drift characteristics
Features
* Maximum input bias current of 3.0nA over temperature
* Offset current less than 400pA over temperature
* Supply current of only 300mA, even in saturation
* Guaranteed drift characteristics