MAX2470:10MHz to 500MHz, VCO Buffer Amplifiers with Differential Outputs

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.

Key Features
  • +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
MAX2470, MAX2471: Typical Operating Circuits
MAX2470, MAX2471: Typical Operating Circuits
Applications/Uses
  • Active Baluns
  • Cellular and PCS Mobile Phones
  • General-Purpose Buffers/Amplifiers
  • ISM-Band Applications
DataSheet
titleDownload file
MAX2470-MAX2471?Data SheetMAX2470-MAX2471.pdf
Parametrics
Part NumberLO Driver OutputsPLL Driver OutputsRF Freq.
(MHz)
RF Freq.
(MHz)
POUT
(dBm)
POUT
(dBm)
VCC
(V)
ISUPPLY
(mA)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX2470YesYes10500-16-12.7 to 5.53.6 to 5.52.7 x 2.9SOT/6$1.47 @1k
MAX2471-1405.5SOT/6$1.25 @1k

Part NumberLO Driver OutputsPLL Driver OutputsRF Freq.
(MHz)
RF Freq.
(MHz)
POUT
(dBm)
POUT
(dBm)
VCC
(V)
ISUPPLY
(mA)
Footprint
(mm x mm)
Package/PinsBudgetary
Price
minmaxminmaxSee Notes
MAX2470YesYes10500-16-12.7 to 5.53.6 to 5.52.7 x 2.9SOT/6$1.47 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX2470EUTNo Longer AvailableMAX2470EUT+SOT,;6 pin;9 mm?-40°C to +85°CNo
MAX2470EUT+ActiveSOT,;6 pin;9 mm?-40°C to +85°CLead Free
MAX2470EUT+TActiveSOT,;6 pin;9 mm?-40°C to +85°CLead Free
MAX2470EUT-TNo Longer AvailableMAX2470EUT+TSOT,;6 pin;9 mm?-40°C to +85°CNo
MAX2470-MAX2471.pdf MAX2471
MAX2470.pdf MAX2470
MAX2470-MAX2471.pdf MAX2471
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