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MAX4545 - Quad/Dual / Low-Voltage / Bidirectional RF/Video Switches

Description

The MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals from DC to 300MHz in 50 Ω and 75 Ω systems.

The MAX4545 contains four normally open single-pole/singlethrow (SPST) switches.

Features

  • o Low 50Ω Insertion Loss: -1dB at 100MHz o High 50Ω Off Isolation: -80dB at 10MHz o Low 50Ω Crosstalk: -80dB at 10MHz o DC to 300MHz -3dB Signal Bandwidth o 20Ω Signal Paths with ±5V Supplies o 1Ω Signal-Path Matching with ±5V Supplies o 0.5Ω Signal-Path Flatness with ±5V Supplies o ±2.7V to ±6V Dual Supplies +2.7V to +12V Single Supply o Low Power Consumption: 2kV ESD Protection per.

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Full PDF Text Transcription

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19-1232; Rev 0; 6/97 Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches _______________General Description The MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals from DC to 300MHz in 50 Ω and 75 Ω systems. The MAX4545 contains four normally open single-pole/singlethrow (SPST) switches. The MAX4546 contains two dual SPST switches (one normally open, one normally closed.) The MAX4547 contains two single-pole/double-throw (SPDT) switches. Each switch is constructed in a “T” configuration, ensuring excellent high-frequency off isolation and crosstalk of -80dB at 10MHz. They can handle Rail-to-Rail® analog signals in either direction. On-resistance (20 Ω max) is matched between switches to 1Ω max and is flat (0.
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