High-Speed, Low-Power, Single-Supply Multichannel, Video Multiplexer-Amplifiers

 

Part Number	Replacement	Explanation

Description

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The MAX4310–MAX4315 single-supply mux-amps combine high-speed operation, low-glitch switching, and excellent video specifications. The six products in this family are differentiated by the number of multiplexer inputs and the gain configuration. The MAX4310/MAX4311/MAX4312 integrate 2-/4-/8-channel multiplexers, respectively, with an adjustable gain amplifier optimized for unity-gain stability. The MAX4313/MAX4314/MAX4315 integrate 2-/4-/8-channel multiplexers, respectively, with a +2V/V fixed-gain amplifier. All devices have 40ns channel switching time and low 10mVp-p switching transients, making them ideal for video-switching applications. They operate from a single +4V to +10.5V supply, or from dual supplies of ±2V to ±5.25V, and they feature Rail-to-Rail outputs and an input common-mode voltage range that extends to the negative supply rail.

The MAX4310/MAX4311/MAX4312 have a -3dB bandwidth of 280MHz/345MHz/265MHz and up to a 460V/µs slew rate. The MAX4313/MAX4314/MAX4315, with 150MHz/127MHz/97MHz -3dB bandwidths up to a 540V/µs slew rate, and a fixed gain of +2V/V, are ideally suited for driving back-terminated cables. Quiescent supply current is as low as 6.1mA, while low-power shutdown mode reduces supply current to as low as 560µA and places the outputs in a high-impedance state. The MAX4310–MAX4315's internal amplifiers maintain an open-loop output impedance of only 8Ω over the full output voltage range, minimizing the gain error and bandwidth changes under loads typical of most rail-to-rail amplifiers. With differential gain and phase errors of 0.06% and 0.08°, respectively, these devices are ideal for broadcast video applications.

MAX4310, MAX4311, MAX4312, MAX4313, MAX4314, MAX4315: Typical Operating Circuit Enlarge+

Key Features

• Single-Supply Operation Down to +4V
• 345MHz -3dB Bandwidth (MAX4311)
  150MHz -3dB Bandwidth (MAX4313)
• 540V/µs Slew Rate (MAX4313)
• Low 6.1mA Quiescent Supply Current
• 40ns Channel Switching Time
• Ultra-Low 10mVp-p Switching Transient
• 0.06%/0.08° Differential Gain/Phase Error
• Rail-to-Rail Outputs: Drives 150Ω to within 730mV of the Rails
• Input Common-Mode Range Includes Negative Rail
• Low-Power Shutdown Mode
• Available in Space-Saving 8-Pin µMAX® and 16-Pin QSOP Packages

Applications/Uses

• 75Ω Video Cable Drivers
• Broadcast Video
• Flash ADC Input Buffers
• High-Speed Signal Processing
• Medical Imaging
• Multimedia Products
• Video Crosspoint Switching
• Video Signal Multiplexing