Need help building voltage follower and amplifier for high bandwidth.

Discussion in 'General Electronics Chat' started by MrLeitexxx, Nov 23, 2011.

  1. MrLeitexxx

    Thread Starter New Member

    Nov 16, 2011
    I need help designing a circuit which will act as a buffer (or voltage follower) and also an other circuit which will act as an amplifier ( lets say X10 linear gain). Both must work well for a frequency between 30Hz and 10kHz. they must be single supply, (+9V/GND).

    thanks in advnced
  2. Audioguru

    New Member

    Dec 20, 2007
    Any half-decent transistor or Jfet makes a voltage follower good to 100 MHz.
    The value of the coupling capacitors and impedances determines the low frequency cutoff.
    10x gain is simple. Single supply is also simple.