Overview

The QS3VH125 is a high-bandwidth, quad bus switch. The QS3VH125 has very low ON-resistance, resulting in under 250ps propagation delay through the switch. The switches can be turned ON under the control of individual LVTTL-compatible active low Output Enable signals for bidirectional data flow with no added delay or ground bounce. The combination of near-zero propagation delay, high OFF impedance, and overvoltage tolerance makes the QS3VH125 ideal for high-performance communications applications. The QS3VH125 operates from -40 °C to +85 °C.

QS3VH125 - Block Diagram
QS3VH125 - Block Diagram
  • N-channel FET switches with no parasitic diode to VCC
    • Isolation under power-off conditions
    • No DC path to VCC or GND 
    • 5V tolerant in OFF and ON state
  • 5V tolerant I/Os
  • Low RON - 4Ω typical
  • Flat RON characteristics over operating range
  • Rail-to-rail switching 0V to 5V
  • Bidirectional dataflow with near-zero delay: No added ground bounce
  • Excellent RON matching between channels
  • VCC operation: 2.3V to 3.6V
  • High bandwidth - Up to 500MHz
  • LVTTL-compatible control inputs
  • Undershoot clamp diodes on all switch and control inputs
  • Low I/O capacitance, 4pF typical
  • Available in 16-pin QSOP and 14-pin SOIC packages

Applications

  • Hot-swapping
  • 10/100 Base-T, Ethernet LAN switch
  • Low distortion analog switch
  • Replaces mechanical relay
  • ATM 25/155 switching

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Pb (Lead) Free
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    QS3VH125QG
    circleActive
    memory
    view_in_ar
    Samples Available
    Buy Now
    		QSOP 16 C Yes Tube 1 Get Samples,
    QS3VH125QG8
    circleActive
    memory
    view_in_ar
    Buy Now
    		QSOP 16 C Yes Reel 1
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product