Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1999-04-20
2000-05-02
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
327563, 326 30, 326 90, H03B 100
Patent
active
060577169
ABSTRACT:
A drive circuit for an integrated circuit tester operates in either a drive mode of a termination mode. In the drive mode, the drive circuit supplies a differential test signal to an integrated circuit device under test (DUT) via a pair of transmission lines. In its termination mode, the drive circuit terminates the transmission lines with their characteristic impedances and provides an adjustable load to a DUT output signal appearing on the transmission lines.
REFERENCES:
patent: 5767698 (1998-09-01), Emeigh et al.
Dinteman Bryan J.
Wohlfarth Paul Dana
Callahan Timothy P.
Credence Systems Corporation
Zweizig Jeffrey
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