QS3VH126QG [IDT]
QUICKSWITCH PRODUCTS 2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH;型号: | QS3VH126QG |
厂家: | INTEGRATED DEVICE TECHNOLOGY |
描述: | QUICKSWITCH PRODUCTS 2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH PC 驱动 光电二极管 逻辑集成电路 |
文件: | 总8页 (文件大小:256K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
QUICKSWITCH® PRODUCTS
2.5V / 3.3V QUAD ACTIVE
IDTQS3VH126
HIGH, HIGH BANDWIDTH SWITCH
FEATURES:
DESCRIPTION:
• N channel FET switches with no parasitic diode to VCC
– Isolation under power-off conditions
– No DC path to VCC or GND
The QS3VH126 is a high bandwidth bus switch. The QS3VH126 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 high Output Enable signals for
bidirectional data flow with no added delay or ground bounce. 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.
– 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
The combination of near-zero propagation delay, high OFF imped-
ance, and over-voltage tolerance makes the QS3VH126 ideal for high
performance communications applications.
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent RON matching between channels
• VCC operation: 2.3V to 3.6V
The QS3VH126 is characterized for operation from -40°C to +85°C.
• 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 SOIC packages
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
1A
2A
3A
4A
1OE
2OE
3OE
4OE
1Y
2Y
3Y
4Y
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
JANUARY 2013
1
c
2013 Integrated Device Technology, Inc.
DSC-5774/13
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
ABSOLUTE MAXIMUM RATINGS(1)
PIN CONFIGURATION
Symbol
Description
Max
–0.5 to +4.6
–0.5 to +5.5
–0.5 to +5.5
–3
Unit
V
(2)
VTERM
SupplyVoltage to Ground
DC Switch Voltage VS
(3)
VTERM
V
(3)
VTERM
DC Input Voltage VIN
V
1
2
3
4
5
6
7
8
VCC
NC
16
15
14
13
12
11
10
9
VAC
IOUT
AC Input Voltage (pulse width ≤20ns)
DC Output Current (max. sink current/pin)
Storage Temperature
V
120
mA
°C
1OE
4OE
TSTG
–65 to +150
4
A
Y
1
A
Y
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation of
the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
1
4
3OE
2OE
2
A
Y
3
A
Y
2. VCC terminals.
3. All terminals except VCC .
2
3
GND
NC
QSOP
TOP VIEW
CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT =
Parameter(1)
Typ.
Max. Unit
0V)
Symbol
CIN
Control Inputs
3
4
8
5
6
pF
pF
pF
CI/O
CI/O
Quickswitch Channels (Switch OFF)
Quickswitch Channels (Switch ON)
12
NOTE:
1. This parameter is guaranteed but not production tested.
1OE
1
VCC
14
PIN DESCRIPTION
1
A
Y
2
3
4
5
6
7
4OE
13
12
11
10
9
Pin Names
1A - 4A
I/O
I/O
I/O
I
Description
1
4
A
Y
Bus A
Bus Y
1Y - 4Y
2OE
4
1OE - 4OE
Output Enable
2
A
Y
3OE
2
3
A
Y
FUNCTION TABLE(1)
GND
8
3
OE
A
H
L
Y
H
L
Function
H
Connect
SOIC
TOP VIEW
H
Connect
L
X
X
Disconnect
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
2
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V
Symbol
Parameter
Input HIGH Voltage
Test Conditions
Min.
1.7
2
Typ.(1) Max.
Unit
VIH
Guaranteed Logic HIGH
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
—
—
—
—
—
—
—
6
—
—
0.7
0.8
±1
±1
±1
8
V
for Control Inputs
Guaranteed Logic LOW
for Control Inputs
0V ≤ VIN ≤ VCC
VIL
Input LOW Voltage
—
—
—
—
—
—
—
—
—
V
IIN
IOZ
Input Leakage Current (Control Inputs)
Off-State Current (Hi-Z)
μA
μA
μA
0V ≤ VOUT ≤ 5V, Switches OFF
VIN or VOUT 0V to 5V, VCC = 0V
VCC = 2.3V
IOFF
Data Input/Output Power Off Leakage
VIN = 0V
ION = 30mA
ION = 15mA
ION = 30mA
ION = 15mA
RON
Switch ON Resistance
Typical at VCC = 2.5V
VCC = 3V
VIN = 1.7V
VIN = 0V
7
9
Ω
4
6
VIN = 2.4V
5
8
NOTE:
1. Typical values are at VCC = 3.3V and TA = 25°C.
IN
CC
TYPICAL ON RESISTANCE vs V AT V
= 3.3V
16
14
12
10
8
RON
(ohms)
6
4
2
0
0.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
1.0
0.5
VIN
(Volts)
3
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
POWER SUPPLY CHARACTERISTICS
Symbol
ICCQ
Parameter
Test Conditions(1)
Min.
—
Typ.
2
Max.
4
Unit
mA
μA
Quiescent Power Supply Current
Power Supply Current (2,3) per Input HIGH
Dynamic Power Supply Current (4)
VCC = Max., VIN = GND or VCC, f = 0
VCC = Max., VIN = 3V, f = 0 per Control Input
ΔICC
—
—
30
ICCD
VCC = 3.3V, A and Y Pins Open, Control Inputs See Typical ICCD vs Enable Frequency graph below
Toggling @ 50% Duty Cycle
NOTES:
1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per input driven at the specified level. A and Y pins do not contribute to ΔIcc.
3. This parameter is guaranteed but not tested.
4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and Y inputs do not contribute to the Dynamic Power Supply Current. This
parameter is guaranteed but not production tested.
CCD
CC
TYPICAL I
vs ENABLE FREQUENCY CURVE AT V
= 3.3V
6
4
2
0
0
2
4
6
8
10
12
14
16
18
20
ENABLE FREQUENCY (MHz)
4
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
VCC = 2.5 ± 0.2V (1)
VCC = 3.3 ± 0.3V (1)
(4)
(4)
Symbol
tPLH
tPHL
tPZL
tPZH
Parameter
Data Propagation Delay(2,3)
A to Y
Switch Turn-On Delay
xOE to xA/xY
Switch Turn-Off Delay
xOE to xA/xY
Operating Frequency -Enable(2,5)
Min.
Max.
Min.
Max.
Unit
⎯
1.5
1.5
⎯
0.2
⎯
1.5
1.5
⎯
0.2
ns
8
6.5
7
ns
ns
tPLZ
tPHZ
7
fxOE
10
20
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 xOE control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD).
5
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
SOME APPLICATIONS FOR HOTSWITCH PRODUCTS
NFET
0 to +5V
0 to +5V
+6.5V
Vcc = 3.3V
CHARGE PUMP
DRIVER
OE
SINGLE HOT
SWITCH
Rail-to-Rail Switching
PHY
3VH
SWITCH
4.5VPP
10Mbps to 100Mbps
>100m
LOGIC
SIDE
LOGIC
SIDE
Z = 100 Ω
Z = 100 Ω
4.5VPP
TWISTED PAIR
2VPP
Fast Ethernet Data Switching (LAN Switch)
ZERO DOWN TIME SYSTEM
PLUGGABLE CARD/ LIVE SYSTEM
ON CARD
LOGIC
CARD I/O
CPU
ON CARD
LOGIC
CARD I/O
RAM
BUS
Hot-Swapping
6
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
TEST CIRCUITS AND WAVEFORMS
TEST CONDITIONS
V
V
0V
IH
T
SAME PHASE
INPUT TRANSITION
Symbol
VLOAD
VIH
VCC(1)= 3.3V ± 0.3V
VCC(2)= 2.5V ± 0.2V
Unit
6
2 x Vcc
Vcc
V
t
PHL
t
PLH
V
V
V
OH
OUTPUT
3
V
T
OL
VT
1.5
300
300
50
VCC/2
150
V
t
PHL
tPLH
V
IH
T
VLZ
mV
mV
pF
OPPOSITE PHASE
INPUT TRANSITION
V
VHZ
150
0V
CL
30
Propagation Delay
V
LOAD
VCC
DISABLE
ENABLE
V
V
IH
T
Open
GND
CONTROL
INPUT
500Ω
0V
tPZL
tPLZ
VIN
VOUT
(1, 2)
Pulse
Generator
V
LOAD/2
D.U.T.
V
V
V
LOAD/2
OUTPUT
NORMALLY
LOW
SWITCH
CLOSED
VT
OL +
OL
VLZ
500Ω
t
PHZ
R
T
tPZH
CL
V
OH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
V
0V
T
VOH -VHZ
0V
Test Circuits for All Outputs
NOTE:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
Enable and Disable Times
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
NOTES:
1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns.
SWITCH POSITION
Test
tPLZ/tPZL
tPHZ/tPZH
tPD
Switch
VLOAD
GND
Open
7
IDTQS3VH126
INDUSTRIAL TEMPERATURE RANGE
2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
ORDERING INFORMATION
XXXXX
XX
QS
X
Package
Device Type
Blank
8
Tube or Tray
Tape and Reel
S1G
QG
SOIC - Green
QSOP - Green
2.5V / 3.3V Quad Active High,
High Bandwidth Switch
3VH126
Datasheet Document History
09/01/08
Pg. 4, 8
Revise ICCQ Typ. and Max. Remove non green package version and updated the ordering
informationbyremovingthe“IDT”notation.
01/30/13
Pg. 1, 8
UpdatedtheorderinginformationbyaddingTapeandReelinformation.
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San Jose, CA 95138
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for Tech Support:
logichelp@idt.com
800-345-7015 or 408-284-8200
fax: 408-284-2775
www.idt.com
8
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