Document
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 performance 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 1
c 2014 Integrated Device Technology, Inc.
I0 A I1 A I2 A I3 A I0 B I1 B I2 B I3 B
FEBRUARY 2014
DSC-5945/11
IDTQS3VH253 2.5V / 3.3V DUAL 4:1 MUX/DEMUX HIGH BANDWIDTH BUS SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
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
EA 1
16 VCC
VTERM(3) DC Input Voltage VIN
VAC
AC Input Voltage (pulse width ≤20ns)
–0.5 to +5.5 V
–3
V
S1 2
15 EB
IOUT
DC Output Current (max. sink current/pin)
120
mA
TSTG Storage Temperature
–65 to +150 °C
I3A 3 I2A 4 I1A 5 I0A 6
14 S0 13 I3B 12 I2B 11 I1B
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 .
YA 7 GND 8
10 I0B 9 YB
QSOP/ TSSOP TOP VIEW
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
11
15
CI/O
Quickswitch Channels Demux
12
16 pF
(Switch ON)
Mux
12
16
NOTE: 1. This parameter is guaranteed but not production tested.
FUNCTION TABLE(1)
Enable
Select
Outputs
EA EB S1 S0
YA
YB
HXXX
Z
X
XHXX
X
Z
L
L
L
L
I0A
I0B
L
L
L
H
I1A
I1B
L
L
H
L
I2A
I2B
L
L
H
H
NOTE: 1. H = HIGH Voltage Level
L = LOW Voltage Level X = Don't Care Z = High-Impedence
I3A
I3B
Function Disable A Disable B S1 - 0 = 0 S1 - 0 = 1 S1 - 0 = 2 S1 - 0 = 3
PIN DESCRIPTION
Pin Names
I/O
Description
Ixx
I
Data Inputs
S0, S1
I
Select Input
EA, EB
I
Enable Input
YA, YB
O
Data Outputs
2
IDTQS3VH253 2.5V / 3.3V DUAL 4:1 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 A.