Pin driver amplifier

Details Pin driver amplifier Pin driver amplifier

1993-05-03

1994-10-18

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

307270, H03F 326

Patent

active

053572114

ABSTRACT:
A pin driver amplifier having a complementary pair of transistors with a pair of resistors coupled between the respective emitters. A node between the resistors is coupled through an output series resistor to an output terminal adapted for connection of a transmission line that conducts driver pulses of predetermined voltage levels and timing to a device under test. A capacitor is tied between the emitters to provide a substantially constant reverse termination impedance for the transmission line thereby reducing reflections. Also, an RC network is coupled between the output terminal and ground to further reduce reflections. The amplifier transistors are driven by respective buffer transistor emitters that are tied together by a capacitor to make the positive and negative going drive capabilities for the amplifier transistors more equal. Further, capacitors are coupled between the amplifier collectors and ground to provide a bypass for parasitic inductance in the supply voltage wires.

REFERENCES:
patent: 5140159 (1992-09-01), Lau et al.
patent: 5144157 (1992-09-01), Russell et al.

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