IDTQS3VH251
INDUSTRIALTEMPERATURERANGE
2.5V/3.3VQUAD8:1MUX/DEMUXHIGHBANDWIDTHBUSSWITCH
QUICKSWITCH® PRODUCTS 2.5V
/ 3.3V 8:1 MUX/DEMUX HIGH
BANDWIDTH BUS SWITCH
IDTQS3VH251
FEATURES:
DESCRIPTION:
• N channel FET switches with no parasitic diode to VCC
– Isolationunderpower-offconditions
– No DC path to VCC or GND
The QS3VH251 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high
bandwidthbusswitch. TheQS3VH251hasverylowONresistance,resulting
inunder250ps propagationdelaythroughthe switch. The Select(Sx)input
controlsthedataflow. Themultiplexers/demultiplexersareenabledwhenthe
Enable(E)inputislow. IntheONstate,theswitchescanpasssignalsupto5V.
IntheOFFstate,theswitchesofferveryhighimpedenceattheterminals.
Thecombinationofnear-zeropropagationdelay,highOFFimpedance,and
over-voltage tolerance makes the QS3VH251 ideal for high performance
comminucationapplications.
– 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 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent RON matching between channels
• VCC operation: 2.3V to 3.6V
TheQS3VH251is characterizedforoperationfrom-40°Cto+85°C.
• High bandwidth - up to 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low Demux capacitance, 4pF typical
• Available in QSOP and TSSOP packages
APPLICATIONS:
• Hot-swapping
• Multiplexing/demultiplexing
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONALBLOCKDIAGRAM
S0
S1
S2
E
I0
I1
I2
I3
I4
I5
I6
I7
Y
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
INDUSTRIAL TEMPERATURE RANGE
AUGUST 2002
1
c
2002 Integrated Device Technology, Inc.
DSC-5944/9