Abstract: A bipolar amplification circuit has a control amplifier (101), a dependent current source (102) configured to supply current to an output terminal (104) and driven by an output from the control amplifier (101). A dependent current sink (103) is configured to receive current from the output terminal (104) and is also driven by the output from the control amplifier (101). The control amplifier includes an inverting input (105) and an input signal is supplied to this inverting input. A negative feedback signal of a first polarity is supplied to the inverting input from said dependent current source and a negative feedback signal of a second polarity is supplied to said inverting input from said dependent current sink.