Device for modular input high-speed multi-channel digitizing of

Details Device for modular input high-speed multi-channel digitizing of Device for modular input high-speed multi-channel digitizing of

1993-11-23

1995-09-26

Young, Brian K.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341110, H03M 112

Patent

active

054537444

ABSTRACT:
A multi-channel high-speed digitizer module converts a plurality of analog signals to digital signals (digitizing) and stores the signals in a memory device. The analog input channels are digitized simultaneously at high speed with a relatively large number of on-board memory data points per channel. The module provides an automated calibration based upon a single voltage reference source. Low signal noise at such a high density and sample rate is accomplished by ensuring the A/D converters are clocked at the same point in the noise cycle each time so that synchronous noise sampling occurs. This sampling process, in conjunction with an automated calibration, yields signal noise levels well below the noise level present on the analog reference voltages.

REFERENCES:
patent: 4707786 (1986-11-01), Dehner
patent: 4878194 (1989-10-01), Nakatsugawa et al.
patent: 4963866 (1990-10-01), Duncan
patent: 5028914 (1991-07-01), Povenmire
patent: 5153501 (1992-10-01), Shimada et al.

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