We found this circuit in an old documentation. It can be elaborated based on modern components. The double transistor can be replaced by a matched pair.
This circuit was found in a 90's RF Design. The circuit employs an integrated of the time. The 56 to...
The integrated circuit in this application is from the 80's, not being common nowadays. It...
The figure shows how to obtain a higher output current for an operational amplifier. With the...