Patent ID: 6232815
Filing Date: 2001-05-15
Classification: G01R,H03K

Abstract:
A waveform driver that generates an output signal at an output port in response to first and second input signals and a baseline input signal, the driver comprising:an amplifier that generates a baseline output signal at an amplifier output in response to said baseline input signal;an impedance device that couples said amplifier output to said output port;a first differential pair of first and second transistors that respectively respond to said first input signal and to a first fixed reference signal and wherein said first differential pair is coupled to steer a first current to said output port in response to said first input signal; anda second differential pair of third and fourth transistors that respectively respond to said second input signal and to a second fixed reference signal and wherein said second differential pair is coupled to steer a second current from said output port in response to said second input signal;said output signal thereby increased from said baseline output signal in response to said first input signal and decreased from said baseline output signal in response to said second input signal.