Ultra-High-Speed, Low-Noise, Low-Power, SOT23 Open-Loop Buffers

Please check latest availability status for a specific part variant.


The MAX4200–MAX4205 are ultra-high-speed, open-loop buffers featuring high slew rate, high output current, low noise, and excellent capacitive-load-driving capability. The MAX4200/MAX4201/MAX4202 are single buffers, while the MAX4203/MAX4204/MAX4205 are dual buffers. The MAX4201/MAX4204 have integrated 50Ω termination resistors, making them ideal for driving 50Ω transmission lines. The MAX4202/MAX4205 include 75Ω back-termination resistors for driving 75Ω transmission lines. The MAX4200/MAX4203 have no internal termination resistors.

The MAX4200–MAX4205 use a proprietary architecture to achieve up to 780MHz -3dB bandwidth, 280MHz 0.1dB gain flatness, 4200V/µs slew rate, and ±90mA output current drive capability. They operate from ±5V supplies and draw only 2.2mA of quiescent current. These features, along with low-noise performance, make these buffers suitable for driving high-speed analog-to-digital converter (ADC) inputs or for data-communications applications.
MAX4200, MAX4201, MAX4202, MAX4203, MAX4204, MAX4205: Typical Application Circuit MAX4200, MAX4201, MAX4202, MAX4203, MAX4204, MAX4205: Typical Application Circuit Enlarge+

Key Features

  • 2.2mA Supply Current
  • High Speed
    • 780MHz -3dB Bandwidth (MAX4201/MAX4202)
    • 280MHz 0.1dB Gain Flatness (MAX4201/MAX4202)
    • 4200V/µs Slew Rate
  • Low 2.1nV/√Hz Voltage-Noise Density
  • Low 0.8pA/√Hz Current-Noise Density
  • High ±90mA Output Drive (MAX4200/MAX4203)
  • Excellent Capacitive-Load-Driving Capability
  • Available in Space-Saving SOT23 or µMAX® Packages


  • Digital-Transmission Line Drivers
  • High-Speed ADC Input Buffers
  • High-Speed DAC Buffers
  • IF/Communications Systems
  • Wireless Local Area Networks (WLANs)

See parametric specs for Video/Wideband Buffers (13)

Part Number# AmplifiersSingle SupplyBW
Slew Rate
Diff. Phase/ Gain
Package/PinsOper. Temp.
(@ -3dB)(0.1dB min)(per Amp.)(min)(Dual)(See Notes)
MAX4200 1No6602202.29042000.15/1.3155
SOIC (N)/8
-40 to +85$1.31 @1k
MAX4201 178028052
SOIC (N)/8
$1.03 @1k
MAX4203 253013090
SOIC (N)/8
$2.29 @1k
MAX4204 272023052
SOIC (N)/8
$2.20 @1k

Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX4201EVKIT: Evaluation Kit for the MAX4201
Request Reliability Report for: MAX4204 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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