The circuit is from the 1994 National Semiconductor Linear Applications Handbook but can be implemented with more modern operational amplifiers. The power supply must be symmetrical.
The circuit shown in the figure is suggested by AllegroMicro (www.allegromicro.com) and consists of an...
Equivalent operational amplifiers can be used in this circuit suggested by Motorola in its 1990...
Found in an old American publication, this is one of many possible configurations for an analog...