Multiplexed active biologic array

Details Multiplexed active biologic array Multiplexed active biologic array

1996-07-09

1999-10-12

Soderquist, Arlen

Chemistry: analytical and immunological testing

Measurement of electrical or magnetic property or thermal...

204412, 204413, 422 8201, 422 8202, 422 8203, 422 8205, 436 73, 436 79, 436 86, 436 89, 436 93, 436 94, 436 95, 436106, 436107, 436108, 436111, 436127, 436128, 436131, 436150, 436151, 436164, 436172, 436501, 436518, G01N 2727, G01N 2726, G01N 27327, G01N 27453

Patent

active

059654520

ABSTRACT:
An improved biologic electrode array and methods for manufacturing and using the same. In one aspect, a matrix of electrodes each coupled to a respective sample-and-hold circuit is provided. The electrodes and sample-and-hold circuits are integral and form an array within a single semiconductor chip, such that each sample-and-hold circuit may be loaded with a predefined voltage provided by a single, timeshared digital-to-analog converter (DAC). Further, all of the sample-and-hold circuits may be accessed through a multiplexer which may be scanned through some or all of the electrode locations. Each sample-and-hold circuit may comprise a capacitor and one or more transistor switches, the switch(es), when closed, providing electrical communication between the capacitor and a source line formed in the matrix.

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