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MAX2641EUT-T Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX2641EUT-T Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 8 page For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. 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 fig- ure, high gain, high input IP3, and an operating fre- quency 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 are a two-element input match, input and output blocking capacitors, and a VCC bypass capacitor. The MAX2640/MAX2641 are designed on a high-fre- quency, low-noise, advanced silicon-germanium process and are offered in the space-saving 6-pin SOT23 package. Applications 400MHz/900MHz/2.4GHz ISM Radios Cellular/PCS Handsets GPS Receivers Cordless Phones Wireless LANs Wireless Data 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 400MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers ________________________________________________________________ Maxim Integrated Products 1 C3 C4 Z1 RFIN C1 VCC VCC RFIN C2 ZM1 BIAS GENERATOR GND LNA RF OUT RF OUT MAX2640/1 ZM2 *The series inductor Z1 can be replaced by a transmission line of appropriate impedance and electrical length. FREQUENCY (MHz) C1 VALUE (pF) C2 VALUE (pF) C3 VALUE (pF) C4 VALUE (pF) Z1* VALUE (nH) ZM1 VALUE (pF) ZM2 VALUE MAX2640 MAX2641 900 — — — — 1575 1900 2450 470 100 470 470 3 100 100 100 470 470 470 470 — — — 100 9.85 5.6 2.55 1.65 2 1 1 1 — 6.8nH 1pF 1pF Typical Operating Circuits 19-1384; Rev 1; 2/99 PART MAX2640EUT-T MAX2641EUT-T -40°C to +85°C -40°C to +85°C TEMP. RANGE PIN- PACKAGE 6 SOT23-6 6 SOT23-6 EVALUATION KIT FOLLOWS DATA SHEET Ordering Information SOT TOP MARK AAAV AAAW Pin Configuration appears at end of data sheet. |
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