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MAX2643：900MHz SiGe, High-Variable IP3, Low-Noise Amplifier

Industry's Smallest SiGe LNA Offers Adjustable IP3 and Gain-Step Functions

The MAX2642/MAX2643 low-cost, high third-order intercept point (IP3), low-noise amplifiers (LNAs) are designed for applications in cellular, ISM, SMR, and PMR systems. They feature a programmable bias, allowing the IP3 and supply current to be optimized for specific applications. These LNAs provide up to 0dBm input IP3 while maintaining a low noise figure of 1.3dB. The gain for these devices is typically 17dB. The MAX2642 also features a 13dB attenuation step, which extends the LNA's dynamic range. Both devices feature a shutdown mode that minimizes power consumption. On-chip output matching saves board space by reducing the number of external components. The MAX2642/MAX2643 are designed on a low-noise, advanced silicon-germanium (SiGe) process technology. They operate from a +2.7V to +5.5V single supply and are available in the ultra-small 6-pin SC70 package.

Key Features Wide Frequency Range: 800MHz to 1000MHz High Output IP3 and Adjustable +17dBm at 5.3mA +7dBm at 2.8mA Low Noise Figure: 1.3dB at 900MHz 13dB Attenuation Step (MAX2642) On-Chip Output Matching Low-Power Shutdown Mode +2.7V to +5.5V Single-Supply Operation Ultra-Small SC70-6 Package

MAX2642, MAX2643: Typical Operating Circuit Applications/Uses 800MHz/900MHz Cellular Phones 868MHz/900MHz ISM-Band Wireless Data 900MHz Cordless Phones PMR/SMR/LMR

DataSheet

Parametrics

Design kits & evaluation modules

• MAX2642EVKIT
• MAX2643EVKIT

Related Products

• MAX2685：Low-Cost, 900MHz, Low-Noise Amplifier and Downconverter Mixer
• MAX2640：300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers
• MAX2641：300MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers

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