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INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH125
3.3V QUAD ACTIVE LOW SWITCH FOR HOT SWAP APPLICATIONS
OCTOBER 2001
2001 Integrated Device Technology, Inc. DSC-5597/1c
IDTQS3VH125
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
3.3V QUAD ACTIVE LOW SWITCH
FOR HOT SWAP APPLICATIONS
(HOTSWITCH™)
DESCRIPTION:
FUNCTIONAL BLOCK DIAGRAM
The QS3VH125 HotSwitch Quad bus switch is specially designed for a
hot-swapping environment. 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. In the OFF and ON states, the switches
are 5V-tolerant. In the OFF state, the switches offer very high impedence
at the terminals.
The combination of near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH125 ideal for hot-swapping
applications.
The QS3VH125 is characterized for operation from -40°C to +85°C.
4OE
1A
1Y2Y3Y4Y
2A3A4A
3OE
2OE
1OE
FEATURES:
− N channel FET switches with no parasitic diode to Vcc
• 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 from 0 - 5V
− Rail-to-rail switching 0 - 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 Inp uts
− Undershoot Clamp Diodes on all switch and control Inputs
− Low I/O capacitance, 4pF typical
− Available in QSOP and SOIC packages
APPLICATIONS:
− PCI/Compact PCI hot-swapping
− 10/100 Base-T, Ethernet LAN switch
− Low distortion analog switch
− Replaces mechanical relay
− ATM 25/155 switching
The IDT logo is a registered trademark of Integrated Device Technology, Inc.