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BUS SWITCH. QS3VH257 Datasheet

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BUS SWITCH. QS3VH257 Datasheet






QS3VH257 SWITCH. Datasheet pdf. Equivalent




QS3VH257 SWITCH. Datasheet pdf. Equivalent





Part

QS3VH257

Description

2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH



Feature


IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEM UX HIGH BANDWIDTH BUS SWITCH INDUSTRIA L TEMPERATURE RANGE QUICKSWITCH® PROD UCTS 2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH IDTQS3VH257 FEAT URES: • N channel FET switches with n o parasitic diode to VCC – Isolation under power-off conditions – No DC pa th to VCC or GND – 5V tolerant in OFF and ON state • 5V tolerant.
Manufacture

Renesas

Datasheet
Download QS3VH257 Datasheet


Renesas QS3VH257

QS3VH257; I/Os • Low RON - 4Ω typical • Flat RON characteristics over operating ran ge • Rail-to-rail switching 0 - 5V Bidirectional dataflow with near-zero delay: no added ground bounce • Exce llent RON matching between channels • VCC operation: 2.3V to 3.6V • High b andwidth - up to 500MHz • LVTTL-compa tible control Inputs • Undershoot Cla mp Diodes on all switch and control I.


Renesas QS3VH257

nputs • Low I/O capacitance, 4pF typic al • Available in QSOP, SOIC, and TSS OP packages APPLICATIONS: • Hot-swapp ing • Multiplexing/demultiplexing • Low distortion analog switch • Repla ces mechanical relay • ATM 25/155 swi tching FUNCTIONAL BLOCK DIAGRAM S DESC RIPTION: The QS3VH257 HotSwitch Quad 2: 1 multiplexer/demultiplexer is a high b andwidth bus switch. The QS3VH25.


Renesas QS3VH257

7 has very low ON resistance, resulting in under 250ps propagation delay throug h the switch. The Select (S) input cont rols the data flow. The multiplexers/de multiplexers are enabled when the Enabl e (E) input is low. In the ON state, th e switches can pass signals up to 5V. I n the OFF state, the switches offer ver y high impedence at the terminals. The combination of nea.

Part

QS3VH257

Description

2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH



Feature


IDTQS3VH257 2.5V / 3.3V QUAD 2:1 MUX/DEM UX HIGH BANDWIDTH BUS SWITCH INDUSTRIA L TEMPERATURE RANGE QUICKSWITCH® PROD UCTS 2.5V/3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH IDTQS3VH257 FEAT URES: • N channel FET switches with n o parasitic diode to VCC – Isolation under power-off conditions – No DC pa th to VCC or GND – 5V tolerant in OFF and ON state • 5V tolerant.
Manufacture

Renesas

Datasheet
Download QS3VH257 Datasheet




 QS3VH257
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH® PRODUCTS
2.5V/3.3V QUAD 2:1 MUX/DEMUX
HIGH BANDWIDTH BUS SWITCH
IDTQS3VH257
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, SOIC, and TSSOP packages
APPLICATIONS:
• Hot-swapping
• Multiplexing/demultiplexing
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
S
DESCRIPTION:
The QS3VH257 HotSwitch Quad 2:1 multiplexer/demultiplexer is a high
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.
The combination of near-zero propagation delay, high OFF impedance,
and over-voltage tolerance makes the QS3VH257 ideal for high perfor-
mance communication applications.
The QS3VH257 is characterized for operation from -40°C to +85°C.
E
YA
YB
YC
YD
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c 2014 Integrated Device Technology, Inc.
I0A
I1A
I0B
I1B
I0C
I1C
I0D
I1D
FEBRUARY 2014
DSC-5596/15




 QS3VH257
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
S1
I0A 2
I1A 3
YA 4
I0B 5
I1B 6
YB 7
GND 8
16 VCC
15 E
14 I0D
13 I1D
12 YD
11 I0C
10 I1C
9 YC
QSOP/ SOIC/ TSSOP
TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max
Unit
VTERM(2) SupplyVoltage to Ground
–0.5 to +4.6 V
VTERM(3) DC Switch Voltage VS
–0.5 to +5.5 V
VTERM(3) DC Input Voltage VIN
–0.5 to +5.5 V
VAC
AC Input Voltage (pulse width 20ns)
–3
V
IOUT
DC Output Current (max. sink current/pin)
120
mA
TSTG Storage Temperature
–65 to +150 °C
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.
2. VCC terminals.
3. All terminals except VCC .
CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT =
0SVy) mbol
Parameter(1)
Typ. Max. Unit
CIN
Control Inputs
3
5
pF
CI/O
Quickswitch Channels Demux
4
6
pF
(Switch OFF)
Mux
7
9
CI/O
Quickswitch Channels Demux
10
15 pF
(Switch ON)
Mux
10
15
NOTE:
1. This parameter is guaranteed but not production tested.
PIN DESCRIPTION
Pin Names
I/O
Description
Ixx
I
Data Inputs
S
I
Select Input
E
I
Enable Input
YA - YD
O
Data Outputs
FUNCTION TABLE(1)
Inputs
Outputs
E S YA
YB
YC
YD
HX Z
Z
Z
Z
LL
I0A
I0B I0C
I0D
L H I1A
I1B I1C
I1D
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Z = High-Impedence
Function
Disable
Select 0
Select 1
2




 QS3VH257
IDTQS3VH257
2.5V / 3.3V QUAD 2:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
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
Test Conditions
Min. Typ.(1) Max. Unit
VIH
Input HIGH Voltage
Guaranteed Logic HIGH VCC = 2.3V to 2.7V
for Control Inputs
VCC = 2.7V to 3.6V
VIL
Input LOW Voltage
Guaranteed Logic LOW VCC = 2.3V to 2.7V
for Control Inputs
VCC = 2.7V to 3.6V
IIN
Input Leakage Current (Control Inputs) 0V VIN VCC
IOZ
Off-State Current (Hi-Z)
0V VOUT 5V, Switches OFF
IOFF
Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V
VCC = 2.3V
VIN = 0V
ION = 30mA
RON Switch ON Resistance
Typical at VCC = 2.5V
VIN = 1.7V
ION = 15mA
VCC = 3V
VIN = 0V
ION = 30mA
VIN = 2.4V
ION = 15mA
1.7
——
V
2
——
— 0.7
V
— 0.8
— ±1 μA
— ±1 μA
— ±1 μA
68
79
Ω
46
58
NOTE:
1. Typical values are at VCC = 3.3V and TA = 25°C.
TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V
16
14
RON
12
(ohms) 10
8
6
4
2
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
VIN
(Volts)
3



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