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MAX2633：VHF-to-Microwave, +3V, General-Purpose Amplifiers

The MAX2630/MAX2631/MAX2632/MAX2633 are low-voltage, low-noise amplifiers for use from VHF to microwave frequencies. Operating from a single +2.7V to +5.5V supply, these devices have a flat gain response to 900MHz. Their low noise figure and low supply current make them ideal for receive, buffer, and transmit IF applications. The MAX2630/MAX2631 are biased internally, eliminating the need for external bias resistors or inductors. The MAX2632/MAX2633 have a user-selectable supply current, which can be adjusted by adding a single external resistor. This allows customized output power and gain according to specific applications requirements. The MAX2631/MAX2633 feature a shutdown pin that allows them to be powered down to less than 1µA supply current. Aside from a single bias resistor required for the MAX2632/MAX2633, the only external components needed for this family of amplifiers are input and output blocking capacitors and a VCC bypass capacitor. The MAX2630 comes in a 4-pin SOT143 package, requiring minimal board space. The MAX2631/MAX2632 come in small 5-pin SOT23 packages. The MAX2633 comes in a 6-pin SOT23 package.

Key Features Single +2.7V to +5.5V Operation Internally Biased (MAX2630/MAX2631) Adjustable Bias (MAX2632/MAX2633) 6.6mA Supply Current (insensitive to supplyvoltage) 1µA Shutdown Current (MAX2631/MAX2633) 3.7dB Noise Figure 13.4dB Gain Ultra-Small SOT Packages

MAX2630, MAX2631, MAX2632, MAX2633: Typical Operating Circuit Applications/Uses Cell Phones Cordless Phones Global Positioning Systems (GPS) ISM Radios Land Mobile Radios Personal Communications Systems (PCS) Set-Top Boxes TV Tuners Wireless Local Area Networks (WLANs) Wireless Local Loop (WLL)

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