ADA-4543 Datasheet | Avago Technologies

Description Avago Technologies’ ADA-4543 is an economical, easy-touse, 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-4543 is fabricated using Avago’s HP25 silicon bipolar process, which employs a double-diffused single polysilicon process with self-aligned submicron emitter geometry. The process is capable of simultaneous high f T and high NPN breakdown (25 GHz f T at 6V BVCEO). The process utilizes industry standard device oxide isolation technologies and submicron aluminum multilayer interconnect to achieve superior performance, high uniformity, and proven reliability. Surface Mount Package SOT-343 Features - Small Signal gain amplifier - Operating frequency DC - 2.5 GHz - Unconditionally stable - 50 Ohms input & output - Flat, Broadband Frequency Response up to 1 GHz - Operating Current: 10 to 30 m A - Industry standard SOT-343 package - Lead-free option available Specifications 900 MHz, 3.4V, 15 m A (typ.) - 15.1 d B associated gain - 1.9 d Bm P1d B - 15 d Bm OIP3 - 3.7 d B noise figure - VSWR < 2 throughput operating frequency - Single supply, typical Id = 15 m A Applications - Cellular/PCS/WLL base stations - Wireless data/WLAN - Fiber-optic systems - ISM Pin Connections and Package Marking RFout & Vd 1Tx GND RFin Note: Top View. Package marking provides orientation and identification. “1T” = Device Code “x” = Date code character identifies month of manufacture. Attention: Observe precautions for handling electrostatic sensitive devices. ESD Machine Model (Class A) ESD Human Body Model (Class 1B) Refer to Avago Application Note A004R: Electrostatic Discharge Damage and Control. Typical Biasing...