Ultra-High-Speed, Low-Distortion, Differential-to-Single-Ended Line Receivers with Enable

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The MAX4444/MAX4445 differential line receivers offer unparalleled high-speed, low-distortion performance. Using a three op amp instrumentation amplifier architecture, these ICs have symmetrical differential inputs and a single-ended output. They operate from ±5V supplies and are capable of driving a 100Ω load to ±3.7V. The MAX4444 has an internally set closed-loop gain of +2V/V, while the MAX4445 is compensated for gains of +2V/V or greater, set by an external resistor. A low-power enable mode reduces current consumption to 3.5mA.

Using current-feedback techniques, the MAX4444/MAX4445 achieve a 550MHz bandwidth while maintaining up to a 5000V/µs slew rate. Excellent differential gain/phase and noise specifications make these amplifiers ideal for a wide variety of video and RF signal-processing applications. An evaluation kit is available to speed design.
MAX4444, MAX4445: Typical Operating Circuit MAX4444, MAX4445: Typical Operating Circuit Enlarge+

Key Features

  • 5000V/µs Slew Rate (MAX4444)
  • +2V/V Internally Fixed Gain (MAX4444)
  • External Gain Selection (MAX4445, AVCL ≥ +2V/V)
  • 550MHz -3dB Bandwidth
  • -60dB SFDR at 5MHz
  • Low Differential Gain/Phase: 0.07%/0.05°
  • Low Noise: 25nV/ at fIN = 100kHz
  • Low-Power Disable Mode Reduces Quiescent Current to 3.5mA


  • Data Acquisition
  • Differential to Single-Ended Conversion
  • High-Speed Differential Line Receiver
  • High-Speed Instrumentation Amplifier
  • Medical Instrumentation
  • Twisted-Pair to Coaxial Converter

See parametric specs for Video/Wideband Line Drivers/Receivers (6)

Part NumberFunctionsBW
Slew Rate
Diff. Phase/ Gain
Package/PinsOper. Temp.
(@ -3dB)(typ)(min)(0.1dB min)(See Notes)
MAX4444 Receiver550
SOIC (N)/16
-40 to +85$2.93 @1k
MAX4445 3800
SOIC (N)/16

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.

MAX4444EVKIT: Evaluation Kit for the MAX4444 and MAX4445
Product Reliability Reports: MAX4445.pdf 
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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