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Broadband gain blocks give high linearity via InGaP HBT technology

Posted: 22 Nov 2010 ?? ?Print Version ?Bookmark and Share

Keywords:Broadband gain blocks? high-linearity? amplifiers?

Supplier of analog interface components, Avago Technologies, has just announced two new high-linearity gain block amplifiers. The AVT-55689 and AVT-54689 gain blocks provide low current consumption and robust electrostatic discharge (ESD) protection, housed in an industry standard SOT-89 package.

These devices function in frequency bands from DC to 6000 MHz. Their ease of use and extended broadband performance make them suitable for cellular and WiMAX wireless base stations, satellite and cable TV set-top boxes, military equipment and a number of other wireless applications operating in this broad frequency range.

The AVT-55689 and AVT-54689 gain blocks take advantage of Indium Gallium Phosphate (InGaP) Hetero-junction Bipolar Transistor (HBT) process to achieve state-of-the-art reliability, temperature stability and performance consistency. The devices are each internally matched to 50ohms, eradicating the requirement for additional radio frequency (RF) matching components. This broadband gain is likewise suited for cellular infrastructure designs that require the same driver amplifier or gain block for different frequencies.

AVT-55689 and AVT-54689 Performance: At the typical operating condition of 5V and 83mA, the AVT-55689 device drives performance of 17.2 dB Gain, 33.0 dBm Output Third Order Intercept Point (OIP3), 19.4 dBm Output Power at 1 dB Gain Compression (P1dB) and 4.4 dB noise figure at 2000MHz. Meanwhile, at the typical operating condition of 5V and 60 mA, AVT-54689 gives performance of 17.4 dB Gain, 30.0 dBm OIP3, 17.7 dBm P1dB and 4.0 dB noise figure at 2000 MHz.

Other AVT-55689 and AVT-54689 product features include: Input and output fully matched to 50 ohms; Built-in temperature compensated internal bias circuitry; Excellent uniformity in product specifications to minimize yield impact; RoHS-Compliant and MSL- rated package: lead and halogen free.

Pricing and availability: The AVT-55689 and AVT-54689 gain block amplifiers are priced starting from $0.63 and $0.59, respectively, in 10,000 unit-quantities.

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