MAX14979EETX+TGH7

Analog Switches - Special Purpose Overview

The MAX14979EETX+TGH7 is a high-bandwidth LVDS switch manufactured by Analog Devices Inc./Maxim Integrated. It features four pairs of double-pole/double-throw (DPDT) switches and three auxiliary single-pole/double-throw (SPDT) switches. The device operates on a single +3.0V to +3.6V power supply with a maximum quiescent current of 450µA. Key electrical parameters include a -3dB bandwidth of 650MHz, typical on-resistance of 4Ω, and typical on-capacitance of 8pF. It provides ±15kV ESD protection per MIL-STD-883 Method 3015. The component is housed in a 36-pin TQFN package and supports an operating temperature range from -40°C to +85°C.

Analog Switches - Special Purpose Feature Summary

• High-speed switching capability optimized for LVDS and LVPECL signals up to 650MHz bandwidth
• Robust electrostatic discharge protection rated at ±15kV Human Body Model
• Integrated auxiliary switches suitable for indicator lighting or general-purpose signal routing

Analog Switches - Special Purpose Applications

• Switching LVDS signals to graphics panels in notebook computers
• Dual graphics applications requiring source selection
• Low-voltage differential signal interfaces requiring external connection protection

Analog Switches - Special Purpose Procurement Notes

Verify the specific suffix 'TGH7' against official manufacturer documentation, as standard datasheets typically list 'T' for tape and reel packaging. Confirm that this suffix does not alter the functional specifications or pinout defined in the MAX14979E datasheet. Ensure compliance with RoHS requirements indicated by the '+' designation.

Analog Switches - Special Purpose Selection Notes

Select this component for designs requiring bidirectional switching of low-voltage differential signals with minimal insertion loss. The low on-resistance and capacitance make it suitable for maintaining signal integrity at high frequencies. Ensure the design accommodates the 36-pin TQFN footprint and provides adequate thermal management for the exposed pad.

Analog Switches - Special Purpose Part Context

This part belongs to the MAX14979E family of high-bandwidth analog switches. It is designed specifically for applications involving LVDS and LVPECL signals where high ESD immunity is critical for external interfaces. The device integrates multiple switch channels into a compact package to reduce board space.

Analog Switches - Special Purpose Replacement Considerations

Direct substitutes within the same family include the MAX14979EETX+T. Verify pin compatibility and electrical characteristics before substituting other analog switch ICs.