Based on the Linear Technology LTC2054, this -48 V circuit was found in a 2005 manual. The circuit is powered with 5 V and can be used as a shield.
The Texas Instruments TPS7A92 integrated circuit consists of a low-voltage (LDO) linear voltage...
This circuit to increase the sensitivity of instruments to 100 uA (or close to it) was found in...
This voltage controlled oscillator uses a varicap to change the frequency. Usin a 100 turns coil...