Differential termination and attenuator network for a...

Details Differential termination and attenuator network for a... Differential termination and attenuator network for a...

2007-01-16

2007-01-16

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S064000, C702S117000, C324S126000, C327S308000, C333S08100R

Reexamination Certificate

active

11051596

ABSTRACT:
A differential termination and attenuator network receives a differential input signal having a DC common mode voltage. The network circuit includes input termination resistors coupled in parallel with corresponding resistive attenuator circuits. A monitoring circuit coupled to input nodes of the network generates an output signal representative of the combination of a DC common mode voltage on the input nodes and an applied termination voltage. A control circuit receives the output signal from the monitoring circuit and the applied termination voltage and generates a scaled termination voltage and a scaled compensation voltage and drive currents. The scaled termination and compensation voltages and drive currents provide DC currents through the input termination resistances and the attenuators for nulling DC currents at the network input nodes and provides a DC common mode voltage output from the attenuators for optimizing the dynamic range of a differential measurement amplifier.

REFERENCES:
patent: 4393347 (1983-07-01), Looper
patent: 4833418 (1989-05-01), Quintus et al.
patent: 6629048 (2003-09-01), Law et al.

Affiliated with

Also associated with

Rating

Differential termination and attenuator network for a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Differential termination and attenuator network for a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Differential termination and attenuator network for a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3769979