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High-Speed, Low-Distortion, Differential Line Receivers

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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Key Features

MAX4144:
  • +2V/V Internally Fixed Gain
  • 130MHz Bandwidth
  • 1000V/µs Slew Rate
  • 70dB CMR at 10MHz
  • -90dBc SFDR (f = 10kHz)
  • Low Differential Gain/Phase: 0.03%/0.03°
  • 800µA Shutdown
MAX4145:
  • External Gain Selection from +1V/V to +10V/V
  • 180MHz Bandwidth
  • 90MHz 0.1dB Gain Flatness
  • 600V/µs Slew Rate
  • 75dB CMR at 10MHz
  • -92dBc SFDR (f = 10kHz)
  • Very Low Noise: 3.8nV/ (G = +10V/V)
  • 800µA Shutdown
MAX4146:
  • External Gain Selection from +10V/V to +100V/V
  • 70MHz Bandwidth (AV = +10V/V)
  • 800V/µs Slew Rate
  • 90dB CMR at 10MHz
  • -82dBc SFDR (f = 10kHz)
  • Very Low Noise: 3.45nV/ (G = +100V/V)
  • 800µA Shutdown

Applications/Uses

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

Description

The MAX4144/MAX4145/MAX4146 differential line receivers offer unparalleled high-speed, low-distortion performance. Using a three op-amp instrumentation amplifier architecture, these ICs have fully symmetrical differential inputs and a single-ended output. They operate from ±5V power supplies and are capable of driving a 150Ω load to ±3.7V. The MAX4144 has an internally set closed-loop gain of +2V/V. The MAX4145 is optimized for gains from +1V/V to +10V/V, while the MAX4146 is optimized for gains from +10V/V to +100V/V. The MAX4145/MAX4146 require a single external resistor to set the closed-loop gain.

These amplifiers use laser-trimmed, matched thin-film resistors to deliver a common-mode rejection (CMR) of up to 90dB at 10MHz. Using current-feedback techniques, the MAX4144 achieves a 130MHz bandwidth and a 1000V/µs slew rate. The MAX4145 achieves a bandwidth of 180MHz and a slew rate of 600V/µs while operating with a closed-loop gain of +1V/V, and the MAX4146 features a bandwidth of 70MHz and a slew rate of 800V/µs with a gain of +10V/V. Excellent differential gain/phase and noise specifications make these amplifiers ideal for a wide variety of video and RF signal-processing applications.

For a complete differential transmission link, use the MAX4144/MAX4145/MAX4146 with the MAX4147 differential line driver (see the MAX4147 data sheet for more information).

Simplified Block Diagram

MAX4144, MAX4145, MAX4146: Typical Operating Circuit MAX4144, MAX4145, MAX4146: Typical Operating Circuit Zoom icon

Technical Docs

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 .