IDTQS3VH257 Integrated Device, IDTQS3VH257 Datasheet

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IDTQS3VH257

Manufacturer Part Number
IDTQS3VH257
Description
QUICKSWITCH PRODUCTS 2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BAND WIDTH BUS SWITCH
Manufacturer
Integrated Device
Datasheet

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FEATURES:
• N channel FET switches with no parasitic diode to V
• 5V tolerant I/Os
• Low R
• Flat R
• Rail-to-rail switching 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
• Excellent R
• V
• 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 QSOP, SOIC, and TSSOP packages
APPLICATIONS:
• Hot-swapping
• Multiplexing/demultiplexing
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
INDUSTRIAL TEMPERATURE RANGE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
c
– Isolation under power-off conditions
– No DC path to V
– 5V tolerant in OFF and ON state
bounce
CC
2003 Integrated Device Technology, Inc.
operation: 2.3V to 3.6V
ON
ON
characteristics over operating range
- 4Ω Ω Ω Ω Ω typical
ON
matching between channels
CC
or GND
S
E
Y
Y
Y
Y
A
B
C
D
QUICKSWITCH
QUAD 2:1 MUX/DEMUX HIGH BAND-
WIDTH BUS SWITCH
CC
®
1
DESCRIPTION:
bandwidth bus switch. The QS3VH257 has very low ON resistance, resulting
in under 250ps propagation delay through the switch. The Select (S) input
controls the data flow. The multiplexers/demultiplexers are enabled when the
Enable (E) input is low. In the ON state, the switches can pass signals up to 5V.
In the OFF state, the switches offer very high impedence at the terminals.
over-voltage tolerance makes the QS3VH257 ideal for high performance
communication applications.
PRODUCTS 2.5V/3.3V
The QS3VH257 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high
The combination of near-zero propagation delay, high OFF impedance, and
The QS3VH257 is characterized for operation from -40°C to +85°C.
INDUSTRIAL TEMPERATURE RANGE
I0
I1
I0
I1
I0
I1
I0
I1
IDTQS3VH257
A
A
B
B
C
C
D
D
MARCH 2003
DSC-5596/11

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IDTQS3VH257 Summary of contents

Page 1

... 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 QS3VH257 ideal for high performance communication applications. The QS3VH257 is characterized for operation from -40°C to +85°C. 1 INDUSTRIAL TEMPERATURE RANGE IDTQS3VH257 ...

Page 2

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH PIN CONFIGURATION GND 8 QSOP/ SOIC/ TSSOP TOP VIEW ABSOLUTE MAXIMUM RATINGS Symbol V (2) TERM V (3) TERM V (3) TERM OUT STG ...

Page 3

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial –40°C to +85° 3.3V ±0. Symbol Parameter V Input HIGH Voltage IH V Input LOW Voltage IL I Input Leakage Current (Control Inputs Off-State Current (Hi-Z) ...

Page 4

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH POWER SUPPLY CHARACTERISTICS Symbol Parameter I Quiescent Power Supply Current CCQ ∆I Power Supply Current per Input HIGH (2, Dynamic Power Supply Current (4) CCD NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. ...

Page 5

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH SWITCHING CHARACTERISTICS OVER OPERATING RANGE T = -40°C to +85°C A Symbol Parameter (2,3) t Data Propagation Delay PLH Ixx or Ixx to Yx PHL t Select Time SEL Enable Time PZH Ixx PZL t Disable Time PHZ ...

Page 6

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH SOME APPLICATIONS FOR HOTSWITCH PRODUCTS 0 to +5V Vcc = 3.3V OE CPU PLUG GABLE CAR D/ LIVE SYSTEM CARD I/O CARD I/O NFET +6.5V CHARGE PUMP DRIVER SINGLE HOT SW ITCH Rail-to-Rail Switching M ULTIPLEXING CONTROL CIRCUITRY Multiplexing / Demultiplexing ZERO DOW N TIM E SYSTEM ...

Page 7

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol V = 3.3V ± 0. LOAD 1 300 LZ V 300 OUT (1, 2) Pulse D.U.T. Generator R T Test Circuits for All Outputs DEFINITIONS Load capacitance: includes jig and probe capacitance. ...

Page 8

... IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH ORDERING INFORMATION IDTQS XXXXX XX Package Device Type DATA SHEET DOCUMENT HISTORY 8/6/2002 Updated according to PCN Logic-0206-11 3/3/2003 Changed Icc limits 7/12/2004 Added Green QSOP package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 INDUSTRIAL TEMPERATURE RANGE ...

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