Suggested by Siliconix in documentation from the 90s, this amplifier has its gain digitally selected. The components are from that time, not easy to find today.
With this configuration we have a voltage follower, amplifier with unit gain, in which the output...
This circuit is from the Linear Circuits Application of Texas Instruments, using an operational amplifier...
This amplifier, suggested by National Semiconductor (Now Texas Instruments), has high input...