MAX2645 Datasheet | Maxim Integrated

Description Features o 3.4GHz to 3.8GHz Frequency Range o LNA Performance (High/Low-Gain Modes) Gain: +14.4d B/-9.7d B NF: 2.3d B/15.5d B Input IP3: +4d Bm/+13d Bm Supply Current: 9.2m A/2.7m A o Highly Versatile Application Receive Path 1st and 2nd Stage LNA Transmit PA Predriver LO Buffer o Adjustable IP3 and Supply Current o 0.1µA Supply Current in Shutdown Mode o +3.0V to +5.5V Single-Supply Operation o 10-Pin µMAX-EP Package (5.0mm x 3.0mm) The MAX2645 is a versatile, high-linearity, low-noise amplifier designed for 3.4GHz to 3.8GHz wireless local loop (WLL), wireless broadband access, and digital microwave radio applications. The device features an externally adjustable bias control, set with a single resistor, that allows the user to meet minimum linearity requirements while minimizing current consumption. The amplifier’s high-gain, low-noise performance and adjustable input third-order intercept (IP3) allow it to be used as a low-noise amplifier (LNA) in the receive path, a PA predriver in the transmit path, or as an LO buffer. The MAX2645 features a logic-level gain control that provides a 25d B step reduction in gain, which improves IP3 performance for operation during high input signal level conditions. Supply current is reduced from 9m A in highgain mode to 3m A in low-gain mode. The device also includes a logic-controlled shutdown mode, which reduces supply current to 0.1µA. The MAX2645 operates from a +3V to +5.5V supply and is offered in the miniature 10-pin µMAX package (5mm ✕ 3mm) with an exposed paddle. Its performance has been optimized for use with the MAX2683/MAX2684 3.5GHz Si Ge mixers to provide a plete high-performance, front-end solution for 3.5GHz applications. Ordering Information PART MAX2645EUB TEMP RANGE -40°C to +85°C PIN-PACKAGE 10 µMAX-EP- Applications Wireless Local Loop Wireless Broadband Access Digital Microwave Radios - EP = exposed paddle. Pin Configuration appears at end of data sheet. Typical Operating Circuit RADIAL...