AD8354 Datasheet | Analog Devices

Data Sheet Features Fixed gain of 20 d B Operational frequency of 1 MHz to 2.7 GHz Linear output power up to 4 d Bm Input/output internally matched to 50 Ω Temperature and power supply stable Noise figure: 4.2 d B 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, plementary 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 d B over the full operating frequency range. The AD8354 provides linear output power of nearly 4.3 d Bm with 20 d B 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 m A. At 900 MHz, the output third-order intercept (OIP3) is greater than 18 d Bm; at 2.7 GHz, the OIP3 is 14 d Bm. 1 MHz to 2.7 GHz RF Gain Block AD8354 FUNCTIONAL BLOCK DIAGRAM BIAS AND VREF VPOS INPT 1 Figure 1. VOUT 2 02722-001 The noise figure is 4.2 d B at 900 MHz. The reverse isolation (S12) is - 33 d B at 900 MHz. The AD8354 can also operate with a 5 V power supply; in which case, no external inductor is required. Under these conditions, the AD8354 delivers 4.88 d Bm with 20 d B of gain at 900 MHz. The dc supply current is 26 m A. At 900 MHz, the OIP3 is greater than 19 d Bm; at 2.7 GHz, the OIP3 is 15 d Bm. The noise figure is 4.4 d B at 900 MHz. The reverse isolation (S12) is - 33 d B. The AD8354 is fabricated on ADI’s proprietary, high performance, 25 GHz, Si plementary, bipolar IC process. The AD8354 is available in a chip scale...