5V gain block amplifier offers +37 dBm OIP3 at 1.9GHz

San Jose, Calif.—WJ Communications Inc. has introduced the WJA1021, the latest addition to the WJA family of +5V active bias InGaP HBT gain block amplifiers.

The WJA1021 5V gain block amplifier does not require any external matching components and offers +37 dBm OIP3 at 2 GHz in a SOT-89 package. It is well suited for general-purpose high linearity applications within the 50 to 4000 MHz frequency range. With this new addition, the WJA family has a more complete selection of cascadable gain blocks offering a wide variety of performances that complement different gain, OIP3, and Icc levels.

At 1.9 GHz, the WJA1021 typically provides 17.5 dB gain, +37.5 dBm OIP3, and +19 dBm P1dB, drawing 90 mA current from a 5V supply. The amplifier also works well at the 900 MHz cellular band with 18.5 dB gain, +40 dBm OIP3, and +20 dBm P1dB. The WJA1021 consists of Darlington-pair amplifiers using a high reliability InGaP/GaAs HBT process technology, and is internally matched to 50 ohm. An internal active bias is designed to enable stable performance over temperature and allow for operation directly from a +5V supply voltage. Only DC blocking/bypass capacitors and a bias inductor are needed for operation.

The WJA1021 is housed in a lead-free/green/RoHS-compliant industry-standard SOT-89 SMT package using a NiPdAu plating to eliminate the possibility of tin whiskering. The WJA1021 is ideal for current and next generation wireless infrastructure applications requiring high linearity such as Multi-Carrier GSM, CDMA, W-CDMA, WiBro, and WiMAX.

Pricing: Can be obtained through distributor, Richardson Electronics. A link for the pricing on their website is shown by clicking on the following link:
Datasheet: Click here.

WJ Communications Inc.,

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