AD8354

Data Sheet FEATURES Fixed gain of 20 dB Operational frequency of 1 MHz to 2.7 GHz Linear output power up to 4 dBm Input/output internally matched to 50 Ω Temperature and power supply stable Noise figure: 4.2 dB Power supply: 3 V or 5 V APPLICATIONS VCO buffers General Tx/Rx amplification Power amplifier predrivers Low power antenna drivers GENERAL DESCRIPTION The AD8354 is a broadband, fixed-gain, linear amplifier that operates at frequencies from 1 MHz up to 2.7 GHz. It is intended for use in a wide variety of wireless devices, including cellular, broadband, CATV, and LMDS/MMDS applications. By taking advantage of ADI’s high performance, complementary Si bipolar process, these gain blocks provide excellent stability over process, temperature, and power supply. This amplifier is single-ended and internally matched to 50 Ω with a return loss of greater than 10 dB over the full operating frequency range. The AD8354 provides linear output power of nearly 4.3 dBm with 20 dB of gain at 900 MHz when biased at 3 V and an external RF choke is connected between the power supply and the output pin. The dc supply current is 24 mA. At 900 MHz, the output third-order intercept (OIP3) is greater than 18 dBm; at 2.7 GHz, the OIP3 is 14 dBm. 1 MHz to 2.7 GHz RF Gain Block AD8354 FUNCTIONAL BLOCK DIAGRAM BIAS AND VREF VPOS INPT COM1 AD8354 Figure 1. VOUT COM2 02722-001 The noise figure is 4.2 dB at 900 MHz. The reverse isolation (S12) is −33 dB at 900 MHz. The AD8354 can also operate ...