MAX2640

19-1384; Rev 1; 2/99 KIT ATION EVALU SHEET A T A D WS FOLLO 400MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers Features o Wide Operating Frequency Range MAX2640: 400MHz to 1500MHz MAX2641: 1400MHz to 2500MHz o Low Noise Figure MAX2640: 0.9dB at 900MHz MAX2641: 1.2dB at 1575MHz 1.3dB at 1900MHz 1.5dB at 2450MHz o High Gain MAX2640: 15.1dB at 900MHz MAX2641: 15.7dB at 1575MHz 14.4dB at 1900MHz 13.5dB at 2450MHz o High Reverse Isolation MAX2640: 40dB at 900MHz MAX2641: 31dB at 1575MHz 30dB at 1900MHz 24dB at 2450MHz o +2.7V to +5.5V Single-Supply Operation o Low 3.5mA Supply Current o Ultra-Small SOT23-6 Package General Description The MAX2640/MAX2641 are low-cost, ultra-low-noise amplifiers designed for applications in the cellular, PCS, GPS, and 2.4GHz ISM frequency bands. Operating from a single +2.7V to +5.5V supply, these devices consume only 3.5mA of current while providing a low noise figure, high gain, high input IP3, and an operating frequency range that extends from 400MHz to 2500MHz. The MAX2640 is optimized for 400MHz to 1500MHz applications, with a typical performance of 15.1dB gain, input IP3 of -10dBm, and a noise figure of 0.9dB at 900MHz. The MAX2641 is optimized for 1400MHz to 2500MHz applications, with a typical performance of 14.4dB gain, an input IP3 of -4dBm, and a noise figure of 1.3dB at 1900MHz. These devices are internally biased, eliminating the need for external bias resistors and chokes. In a typical application, the only external components needed...