SGA-4186

Product Description Stanford Microdevices’ SGA-4186 is a high performance SiGe Heterojunction Bipolar Transistor MMIC Amplifier. A Darlington configuration featuring 1 micron emitters provides high FT and excellent thermal perfomance. The heterojunction increases breakdown voltage and minimizes leakage current between junctions. Cancellation of emitter junction nonlinearities results in higher suppression of intermodulation products. At 850 Mhz and 45mA , the SGA-4186 typically provides +28.3 dBm output IP3, 10 dB of gain, and +14.6 dBm of 1dB compressed power using a single positive voltage supply. Only 2 DC-blocking capacitors, a bias resistor and an optional RF choke are required for operation. Gain & Return Loss vs. Frequency 16 12 Gain (dB) 8 IRL VD= 3.2 V, ID= 45 mA (Typ.) SGA-4186 DC-5000 MHz, Cascadable SiGe HBT MMIC Amplifier Product Features • High Gain : 9.2 dB at 1950 MHz • Cascadable 50 Ohm • Patented SiGe Technology 0 -10 -20 Return Loss (dB) GAIN • Operates From Single Supply • Low Thermal Resistance Package 4 0 0 1 ORL Applications • Cellular, PCS, CDPD • Wireless Data, SONET • Satellite Units dB dBm dBm M Hz dB dB dB V °C/W 1950 M Hz 1950 M Hz 1950 M Hz 2.8 Frequency 850 M Hz 1950 M Hz 2400 M Hz 850 M Hz 1950 M Hz 850 M Hz 1950 M Hz Min. 9.0 Ty p. 10.0 9.2 8.9 14.6 12.4 28.3 25.5 5000 20.3 24.4 5.2 3.2 97 3.6 Max. 11.0 -30 -40 2 3 Frequency (GHz) 4 5 Sy mbol G P1dB OIP3 Parameter Small Signal Gain Output Pow er at 1dB Compression Output Third Order Intercept Point (Pow er out per tone = -5dBm) Bandw idth Determined by Return Loss (