ACT8502-S 查看數據表（PDF） - Aeroflex Corporation
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ACT8502-S
Aeroflex Corporation
ACT8502-S Datasheet PDF : 10 Pages
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Organization and Application
The ACT8502 consists of six 16 channel muxes arranged as shown in the Block Diagram. The
ACT8502 design is inherently Radiation Hard due to the HS1840RH Multiplexers as well as
Microsemi Corp. Transient Suppressors (Reference Microsemi MicroNotes Series 050 -
page 14).
48 channels addressable by Bus A0~A3, in Three 16 channel blocks, each block enabled
separately. Each block connects the addressed channel to two outputs, "Output" and "Current".
This technique enables selecting and reading a remote resistive sensor without the MUX
resistance being part of the measurement. For grounded sensors, this is done by passing
current to the sensor by means of the "Current" pin and reading the resultant voltage
(proportional to the sensor resistance) at the "Output" pin.
NOTE: It is recommended that all "NC or "no connect pin", be grounded. This eliminates or
minimizes any ESD or static buildup.
Aeroflex Circuit Technology
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SCD8502 REV A 10/26/01 Plainview NY (516) 694-6700
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