The MAX2650 is a low-noise amplifier for use from DC to microwave frequencies. Operating from a single +5V supply, it has a flat gain response to 900MHz. The MAX2650's low noise figure and high drive capability make it ideal for a variety of transmit, receive, and buffer applications.
The MAX2650 is a broadband, DC‑to‑microwave low‑noise amplifier supplied by a single +5 V source. It features internal biasing, eliminating the need for external bias resistors or inductors, and requires only input/output blocking capacitors and a VCC bypass capacitor.
The device is offered in a compact 4‑pin SOT143 package, making it suitable for space‑constrained applications such as wireless local loop, GPS, ISM radios, and cellular base stations. Detailed electrical characteristics, pin descriptions, and typical PCB layout guidelines are provided.
| Gain at 900 MHz | 18.3 dB |
|---|---|
| Noise Figure | 3.9 dB |
| Supply Voltage | 4.5 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 4‑pin SOT143 |
The MAX2650 operates from a single +5 V supply and is specified for 4.5 V to 5.5 V operation.
The device provides a gain of 18.3 dB at 900 MHz.
Yes, the amplifier is internally biased, so no external bias resistors or inductors are needed.
It is supplied in a 4‑pin SOT143 surface‑mount package.