Document
AMIS-492x0 AMIS-492x0 Fieldbus MAU
Overview
AMIS−492x0 Fieldbus MAU (Media Access Unit) is a transceiver chip for low speed FOUNDATION® Fieldbus and Profibus PA devices. The AMIS−49200 was originally designed to be a near pin-for-pin replacement of the Yokogawa mSAA22Q MAU. “Near pin-for-pin” means that associated component values may change, but no board changes are required. A micro-leadframe package option (NQFP) is also available, the AMIS−49250.
Features
AMIS−492x0 Fieldbus MAU is a transceiver IC for low speed
FOUNDATION Fieldbus and Profibus PA devices. It incorporates the
following features:
• All Node Power can be Supplied by the Bus, via the AMIS-492x0 • Current Consumption 500 mA (Typ) • VCC Voltage: 6.2 V to 4.75 V • VDD Voltage: 5.5 V to 2.7 V • Compatible to IEC 1158−2 and ISA 50.02 • Shunt Regulator • Voltage Reference (Internal Only) • Series Regulator • Band-pass Filter • Slew Rate Control • Segment Current Control • Low Voltage.