MGA-665P8

Agilent's MGA-665P8 is an economical, easy-to-use GaAs MMIC Low Noise Amplifier (LNA) with a unique active-low powerdown function. The LNA has low noise figure and high gain achieved through the use of Agilent Technologies' proprietary GaAs Enhancement-mode PHEMT process. It is housed in a miniature 2.0 x 2.0 x 0.75 mm 8-pin Leadless-Plastic-Chip- Carrier (LPCC) package. The compact footprint and low profile coupled with low noise, high gain and high linearity makes the MGA-665P8 an ideal choice as an LNA for broadband generalpurpose applications. Its excellent broadband isolation also makes it a good buffer amplifier.

The output of the MGA-665P8 provides a very good broadband match to 50 . Its input requires a simple external LC network to provide a low noise figure and good input return loss. Power supply voltage is applied to both the output terminal and a separate VD terminal. A simple external bias insertion circuit consisting of a shunt inductor and a series dc block capacitor is sufficient to apply power supply voltage to the output of the MGA- 665P8. The MGA-665P8 provides typical device performance of 1.45 dB noise figure, 16 dB gain and an OIP3 of +18.1 dBm at 5.25 GHz, at a bias point of 3 V and 20.5 mA.