MAX2470, MAX2471 10MHz至500MHz、VCO缓冲放大器，差分输出

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The MAX2470/MAX2471 are flexible, low-cost, high reverse-isolation buffer amplifiers for applications with discrete and module-based VCO designs. Both feature differential 50Ω outputs for driving a single differential (balanced) load or two separate single-ended (unbalanced) 50Ω loads. The MAX2470 offers a single-ended input and has two selectable frequency ranges of operation: 10MHz to 500MHz and 10MHz to 200MHz. The MAX2471 offers a differential input and operates from 10MHz to 500MHz. The MAX2470/MAX2471 also feature high input impedance for maximum flexibility, enabling them to be used with a variety of oscillator topologies. High reverse isolation combined with low supply current make them ideal for applications requiring high performance with low power.

These devices are also ideal for use as active baluns. The MAX2470 converts a single-ended input to a differential output. The MAX2471 is useful as a differential buffer stage or to convert from a differential input to two single-ended ouputs.

The MAX2470 operates from a single +2.7V to +5.5V supply. At -5dBm output power, it consumes 5.5mA in the high-frequency range and only 3.6mA in the low-frequency range. The MAX2471 operates from a +2.7V to +5.5V single supply and consumes 5.5mA. both devices are available in ultra-small SOT23-6 plastic packages, requiring minimal board space.

关键特性

应用/使用

+2.7V to +5.5V Supply Range
Input Frequency Range
- High: 10MHz to 500MHz (MAX2470/2471)
- Low: 10MHz to 200MHz (MAX2470)
>14dB Power Gain at 200MHz
64dB Typical Reverse Isolation at 200MHz
Low-Distortion Output Drive
Ultra-Small SOT23-6 Package
High Input Impedance
Single-Ended (MAX2470) or Differential (MAX2471) Inputs

	有源平衡器
	蜂窝与PCS移动电话
	通用缓冲器/放大器
	ISM波段应用

Key Specifications: VCOs/VCO Buffers

Part Number

Solutions

Applications

Min. Frequency (MHz)

Max. Frequency (MHz)

Features

Supply Current (mA)

Footprint (mm x mm)

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX2470

2.4GHz
400MHz
900MHz
Cellular
Cordless
GPS
WLL

•

Cellular

•

Cordless

•

ISM

•

WLAN

500

•	+2.7V to +5.5V Supply Voltage Range

•	64dB Reverse Isolation at 200MHz

•	>14dB Power Gain at 200MHz

•	Single-Ended Input

3.6 to 5.5

2.7 x 2.9

Yes

SOT-23/6

$0.75 @ 1k

MAX2471

•	+2.7V to +5.5V Supply Voltage Range

•	64dB Reverse Isolation at 200MHz

•	>14dB Power Gain at 200MHz

•	Differential Inputs

5.5

$0.75 @ 1k

See All VCOs/VCO Buffers (21)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.