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MAX4819 - High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes

Download the MAX4819 datasheet PDF. This datasheet also covers the MAX4818 variant, as both devices belong to the same high-bandwidth t1/e1 dual-spdt switches/4:1 muxes family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX4818/MAX4819 high-bandwidth, low-on-resistance analog dual SPDT switches/4:1 multiplexers are designed to serve as integrated T1/E1 protection switches for 1+1 and N+1 line-card redundancy applications.

Key Features

  • Dual SPDT and 4:1 Multiplexer Configurations.
  • Dual-Supply Operation from ±3.3V to ±5V.
  • Single-Supply Operation from +6V to +11V.
  • Hot-Insertion Tolerant with No DC Path to the Supplies.
  • Low On-Resistance, RON = 4Ω (typ) and 6Ω (max).
  • Over 350MHz -3dB Signal Bandwidth (MAX4818).
  • Excellent Crosstalk and Off-Isolation Performance Over the T1/E1 Signal Spectrum: Over 110dB Crosstalk Attenuation at 1MHz (MAX4818).
  • Low Current Con.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX4818_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.DataSheet4U.com 19-3915; Rev 1; 1/07 High-Bandwidth T1/E1 Dual-SPDT Switches/ 4:1 Muxes General Description The MAX4818/MAX4819 high-bandwidth, low-on-resistance analog dual SPDT switches/4:1 multiplexers are designed to serve as integrated T1/E1 protection switches for 1+1 and N+1 line-card redundancy applications. Each MAX4818/MAX4819 replaces four electromechanical relays, significantly reducing board space, simplifying PC board routing, and reducing power consumption. These devices operate with ±3.3V or ±5V dual supplies for applications requiring T1/E1 signal switching in the line side of the interface transformer. Internal voltage multipliers drive the analog switches, yielding excellent linearity and low 4Ω typical on-resistance within the T1/E1 analog signal range.