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PDF IDTQS3VH253 Data sheet ( Hoja de datos )
| Número de pieza | IDTQS3VH253 | |
| Descripción | 2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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IDTQS3VH253
2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
2.5V / 3.3V DUAL 4:1 MUX/DEMUX
HIGH BANDWIDTH BUS SWITCH
IDTQS3VH253
FEATURES:
• 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 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 Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O 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
FUNCTIONAL BLOCK DIAGRAM
S0
S1
EA
EB
DESCRIPTION:
The QS3VH253 HotSwitch Dual 4:1 multiplexer/demultiplexer is a high
bandwidth bus switch. The QS3VH253 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The Select
(Sx) inputs control the data flow. The multiplexers/demultiplexers are
enabled when the Enable (EA, EB) inputs are low. In the ON state, the
switches can pass signals up to 5V. In the OFF state, the switches offer very
high impedance at the terminals.
The combination of near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH253 ideal for high perfor-
mance communication applications.
The QS3VH253 is characterized for operation from -40°C to +85°C.
YA
YB
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2014 Integrated Device Technology, Inc.
1
I0 A
I1 A
I2 A
I3 A
I0 B
I1 B
I2 B
I3 B
FEBRUARY 2014
DSC-5945/11
1 page  
IDTQS3VH253
2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
VCC = 2.5 ± 0.2V (1)
VCC = 3.3 ± 0.3V (1)
Symbol
tPLH
tPHL
tSEL
Parameter
Data Propagation Delay(2,3)
Yx to Ixx or Ixx to Yx
Select Time
S to Yx
Min. (4)
⎯
1.5
Max.
Min. (4)
0.2 ⎯
9 1.5
Max.
0.2
8
tPZH Enable Time
tPZL Sx to Ixx
1.5
9 1.5
9
tPHZ Disable Time
tPLZ Sx to Ixx
tPZH Enable Time
tPZL Ex to Yx or Ixx
tPHZ Disable Time
tPLZ Ex to Yx or Ixx
1.5
8 1.5
8
1.5
9 1.5
8
1.5
8 1.5
8
fExorSx
Operating Frequency - Enable(2,5)
⎯
10 ⎯
20
Unit
ns
ns
ns
ns
ns
ns
MHz
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
2. This parameter is guaranteed but not production tested.
3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the
order of 0.2ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation
delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
4. Minimums are guaranteed but not production tested.
5. Maximum toggle frequency for Sx or Ex control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD).
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet IDTQS3VH253.PDF ] | |
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