Analog data acquisition circuit with digital logic control

Details Analog data acquisition circuit with digital logic control Analog data acquisition circuit with digital logic control

1989-09-29

1991-03-26

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Multiplex

341155, H03M 112

Patent

active

050033107

ABSTRACT:
A data acquisition for use in a high-speed data bus interface is provided with an analog acquisition circuit having analog inputs, digital outputs, a load terminal, an end-of-conversion terminal, a strobe terminal, a multiplex address output and a channel select input. A static random access memory receives data produced at the digital output of the analog acquisition circuit and stores it in addresses corresponding to the multiplexed address outputs of the analog acquisition circuit. A simple logic control circuit having an AND gate, an OR gate and a one shot circuit is connected to control the operation of the analog acquisition to provide self-starting and free running operation with synchronous turn on and turn off to prevent data contamination when the circuit is stopped.

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Analog Devices, Inc., "Analog-Digital Conversion Handbook" 1986 pp. 36; 37 and 67-106.
Hybrid Systems Corp., Bulletin HS 9403/8M/08-85, HS 9403, 16-Channel, 12-Bit Data Acquisition System.

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