ADA-4743

Agilent Technologies' ADA-4743 is an economical, easy-to-use, general purpose silicon bipolar RFIC gain block amplifiers housed in a 4-lead SC-70 (SOT-343) surface mount plastic package which requires only half the board space of a SOT-143 package. The Darlington feedback structure provides inherent broad bandwidth performance, resulting in useful operating frequency up to 2.5 GHz.

This is an ideal device for small-signal gain cascades or IF amplification. ADA-4743 is fabricated using Agilent's HP25 silicon bipolar process, which employs a doublediffused single polysilicon process with self-aligned submicron emitter geometry.

The process is capable of simultaneous high fT and high NPN breakdown (25 GHz fT at 6V BVCEO). The ADA-4743 process utilizes industry standard device oxide isolation technologies and submicron aluminum multilayer interconnect to achieve superior performance, high uniformity, and proven reliability.