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500MHz to 2500MHz, VCO Buffer Amplifiers

High Reverse Isolation Buffer Amplifier

Product Details

Key Features

Applications/Uses

Parametric specs for VCO Buffers/Splitters
LO Driver Outputs Yes
PLL Driver Outputs Yes
RF Freq. (MHz) (min) 500
RF Freq. (MHz) (max) 2500
POUT (dBm) (min) -10
POUT (dBm) (max) -2
Gain (dB) 14
VCC (V) 2.7 to 5.5
ISUPPLY (mA) 5.2
Footprint (mm x mm) 2.7 x 2.9
Package/Pins SOT23/6
Budgetary
Price (See Notes)
1.59
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Simplified Block Diagram

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Parameters

Parametric specs for VCO Buffers/Splitters
LO Driver Outputs Yes
PLL Driver Outputs Yes
RF Freq. (MHz) (min) 500
RF Freq. (MHz) (max) 2500
POUT (dBm) (min) -10
POUT (dBm) (max) -2
Gain (dB) 14
VCC (V) 2.7 to 5.5
ISUPPLY (mA) 5.2
Footprint (mm x mm) 2.7 x 2.9
Package/Pins SOT23/6
Budgetary
Price (See Notes)
1.59

Key Features

  • +2.7V to +5.5V Supply Range
  • 500MHz to 2500MHz Input Frequency Range
  • High Reverse Isolation: 49dB at 900MHz
  • Dual Open-Collector Outputs (MAX2472)
  • Adjustable -10dBm to -2dBm Output Power Control (MAX2473)
  • High Input Impedance: >250Ω at 900MHz
  • Ultra-Small SOT23-6 Package

Applications/Uses

  • Cellular and PCS Mobile Phones
  • General-Purpose Buffers/Amplifiers
  • IF/RF Oscillators
  • ISM-Band Applications
  • Private Mobile Radios (PMRs)

Description

The MAX2472/MAX2473 are flexible, wideband, high- reverse-isolation buffer amplifiers. The MAX2472 has dual open-collector outputs capable of delivering -5dBm into 50Ω while maintaining harmonic suppression below -25dBc. The MAX2473 has a single open-collector output with a bias control pin to vary output power from -10dBm to -2dBm while maintaining harmonic suppression below -25dBc. The MAX2472/MAX2473's combination of high reverse isolation and low supply current makes them ideal for applications requiring high performance with low power. They feature high input impedance and open-collector outputs for maximum flexibility, enabling them to be used with a variety of oscillator topologies.

Both the MAX2472 and MAX2473 operate from a single +2.7V to +5.5V supply. With VCC = +3.0V and -25dBm input power, the MAX2472 consumes 5.2mA, while the MAX2473 consumes only 2.7mA. Both devices are available in a tiny 6-pin SOT23 package requiring minimal board space.

Simplified Block Diagram

 

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .