AuthenTec makes security software and chips for mobile phones that it licenses to companies such as Samsung Electronics Co Ltd. It also produces chips for fingerprint recognition and near-field communication (NFC).
Melbourne, Florida-based Authentec disclosed the deal in a filing with the US Securities and Exchange Commission.
Based on Thursday's closing price $5.07, the offer represents a premium of 58 per cent for AuthenTec's shares.
AuthenTec, which also counts Lenovo Group Ltd, Fujitsu Ltd and Dell Inc as customers, has annual revenue of about $70 million.
Piper Jaffray advised in the deal, the company said.
Copyright @ Thomson Reuters 2012