Microchip Technology Incorporated
Symmetric input circuitry for IC in two-pin package

Abstract:

An integrated circuit device is disclosed, which integrated circuit device comprises at least a first external contact, a second external contact, and an input stage, connected with the external contacts and being configured to provide an internal operating voltage when an external voltage is applied to the external contacts. To allow easier handling at manufacture, test, assembly, and end use, the internal operating voltage has a predefined polarity, which predefined polarity is independent of the polarity of the external voltage.