QS3VH126QG8 [IDT]

QUICKSWITCH PRODUCTS 2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH;


型号：	QS3VH126QG8
厂家：	INTEGRATED DEVICE TECHNOLOGY
描述：	QUICKSWITCH PRODUCTS 2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH
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

IDTQS3VH126

INDUSTRIAL TEMPERATURE RANGE

2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH

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 R^ONcharacteristics 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 R^ONmatching 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

1OE

2OE

3OE

4OE

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

INDUSTRIAL TEMPERATURE RANGE

JANUARY 2013

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

–3

Unit

(2)

VTERM

SupplyVoltage to Ground

DC Switch Voltage VS

(3)

VTERM

(3)

VTERM

DC Input Voltage VIN

VCC

VAC

IOUT

AC Input Voltage (pulse width ≤20ns)

DC Output Current (max. sink current/pin)

Storage Temperature

120

°C

1OE

4OE

TSTG

–65 to +150

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.

3OE

2OE

2. V^CCterminals.

3. All terminals except V^CC.

GND

QSOP

TOP VIEW

CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT =

Parameter⁽¹⁾

Typ.

Max. Unit

0V)

Symbol

CIN

Control Inputs

CI/O

Quickswitch Channels (Switch OFF)

Quickswitch Channels (Switch ON)

NOTE:

1. This parameter is guaranteed but not production tested.

1OE

VCC

PIN DESCRIPTION

4OE

Pin Names

1A - 4A

I/O

Description

Bus A

Bus Y

1Y - 4Y

2OE

1OE - 4OE

Output Enable

3OE

FUNCTION TABLE⁽¹⁾

GND

Function

Connect

SOIC

TOP VIEW

Connect

Disconnect

NOTE:

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don't Care

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

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

—

0.7

0.8

±1

for Control Inputs

Guaranteed Logic LOW

for Control Inputs

0V ≤ VIN ≤ VCC

VIL

Input LOW Voltage

—

IIN

IOZ

Input Leakage Current (Control Inputs)

Off-State Current (Hi-Z)

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

VIN = 2.4V

NOTE:

1. Typical values are at VCC = 3.3V and TA = 25°C.

TYPICAL ON RESISTANCE vs V AT V

= 3.3V

RON

(ohms)

0.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

1.0

0.5

VIN

(Volts)

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.

Max.

Unit

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

—

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

TYPICAL I

vs ENABLE FREQUENCY CURVE AT V

= 3.3V

ENABLE FREQUENCY (MHz)

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)

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

⎯

0.2

⎯

1.5

⎯

0.2

6.5

tPLZ

tPHZ

fxOE

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 C^L= 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).

IDTQS3VH126

INDUSTRIAL TEMPERATURE RANGE

2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH

SOME APPLICATIONS FOR HOTSWITCH PRODUCTS

NFET

0 to +5V

+6.5V

Vcc = 3.3V

CHARGE PUMP

DRIVER

SINGLE HOT

SWITCH

Rail-to-Rail Switching

PHY

3VH

SWITCH

4.5VPP

10Mbps to 100Mbps

>100m

LOGIC

SIDE

LOGIC

SIDE

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

IDTQS3VH126

INDUSTRIAL TEMPERATURE RANGE

2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH

TEST CIRCUITS AND WAVEFORMS

TEST CONDITIONS

SAME PHASE

INPUT TRANSITION

Symbol

VLOAD

VIH

VCC⁽¹⁾= 3.3V ± 0.3V

VCC⁽²⁾= 2.5V ± 0.2V

Unit

2 x Vcc

Vcc

PHL

PLH

OUTPUT

1.5

300

VCC/2

150

PHL

tPLH

VLZ

OPPOSITE PHASE

INPUT TRANSITION

VHZ

150

Propagation Delay

LOAD

VCC

DISABLE

ENABLE

Open

GND

CONTROL

INPUT

500Ω

tPZL

tPLZ

VIN

VOUT

(1, 2)

Pulse

Generator

LOAD/2

D.U.T.

LOAD/2

OUTPUT

NORMALLY

LOW

SWITCH

CLOSED

OL +

VLZ

500Ω

PHZ

tPZH

OUTPUT

NORMALLY

HIGH

SWITCH

OPEN

VOH -VHZ

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

IDTQS3VH126

INDUSTRIAL TEMPERATURE RANGE

2.5V / 3.3V QUAD ACTIVE HIGH, HIGH BANDWIDTH SWITCH

ORDERING INFORMATION

XXXXX

Package

Device Type

Blank

Tube or Tray

Tape and Reel

S1G

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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fax: 408-284-2775

www.idt.com

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