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QS3VH16800PAG8

P1-P3P4-P6P7-P8
1
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH16800
2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS
JUNE 2013
2013 Integrated Device Technology, Inc. DSC-5961/9c
INDUSTRIAL TEMPERATURE RANGE
DESCRIPTION:
The QS3VH16800 HotSwitch is a 20-bit high bandwidth bus switch. The
QS3VH16800 has very low ON resistance, resulting in under 250ps propa-
gation delay through the switch. The QS3VH16800 precharges the B port to
a user selectable bias voltage (VBIAS) to minimize live insertion noise. The
switches can be turned ON under the control of the LVTTL-compatible Output
Enable signal for bidirectional data flow with no added delay or ground bounce.
It can be used as two 10-bit bus switches or one 20-bit bus switch. In the OFF
and ON states, the switches are 5V-tolerant. 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 QS3VH16800 ideal for high performance
communications applications.
The QS3VH16800 is characterized for operation from -40°C to +85°C.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
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
• B port precharged to user-selectable VBIAS
• Low RON - 4
ΩΩ
ΩΩ
Ω 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 TSSOP package
IDTQS3VH16800
QUICKSWITCH
®
PRODUCTS
2.5V / 3.3V 20-BIT HIGH
BANDWIDTH BUS SWITCH
WITH PRECHARGED OUTPUTS
A0
A9 B9
B0
VBIAS
OE1
A10
A19 B19
B10
VBIAS
OE2
FUNCTIONAL BLOCK DIAGRAM
2
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH16800
2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS
PIN CONFIGURATION
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
T
STG Storage Temperature –65 to +150 °C
ABSOLUTE MAXIMUM RATINGS
(1)
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 V
CC .
Symbol Parameter
(1)
Typ. Max. Unit
CIN Control Inputs 3 5 pF
C
I/O Quickswitch Channels (Switch OFF) 4 6 pF
VBIAS = OPEN
C
I/O Quickswitch Channels (Switch ON) 8 12 pF
CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT = 0V)
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
Z = High-Impedence
OEx Bx Function
L A x Connect
HV
BIAS Disconnect Ax = Z
FUNCTION TABLE (EACH 10-BIT BUS SWITCH)
(1)
TSSOP
TOP VIEW
48VBIAS OE11
47
OE2
2
A0
463A1 B0
454A2
B1
445A3
B2
436
A
4 B3
418
A
6
B5
409
A
7
B6
3910
A
8
B7
427A5
B4
3811
A
9
B8
37
GND
12
B
9
3613
3514
A
10
3415
A
11
B10
3316A12
B11
3217
A
13
B12
3118
A
14
B13
2920
A
16
B15
2821
A
17
B16
2722
A
18
B17
3019
A
15
B14
2623
A
19
B18
25
GND
24
B
19
VCC
GND
GND
NOTE:
1. This parameter is guaranteed but not production tested.
Pin Names I/O Description
OEx I Bus Switch Enable
VBIAS I Bias Voltage
Ax I/O Bus A
Bx I/O Bus B
PIN DESCRIPTION
3
INDUSTRIAL TEMPERATURE RANGE
IDTQS3VH16800
2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS
TYPICAL ON RESISTANCE vs V
IN
AT V
CC
= 3.3V
RON
(ohms)
VIN
(Volts)
Symbol Parameter Test Conditions Min. Typ.
(1)
Max. Unit
VIH Input HIGH Voltage Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 — — V
for Control Inputs VCC = 2.7V to 3.6V 2 — —
VIL Input LOW Voltage Guaranteed Logic LOW VCC = 2.3V to 2.7V — — 0.7 V
for Control Inputs VCC = 2.7V to 3.6V — — 0.8
V
BIAS Bias Voltage VCC = 3.3V to 3.6V, IO = 0 0 — 5 V
VCC = 2.3V to 2.7V, IO = 0 0 — 3.3
| IO | Bias Current
(2)
VCC = 3.3V, VBIAS = 2.4V, VO = 0, OEx = HIGH 0.25 — — mA
IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC ——±1μA
IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ 5V, Switches OFF — — ±1 μA
IOFF Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V — — ±1 μA
VCC = 2.3V VIN = 0V ION = 30mA — 6 8
RON Switch ON Resistance Typ. at VCC = 2.5V VIN = 1.7V ION = 15mA — 7 9 Ω
VCC = 3V VIN = 0V ION = 30mA — 4 6
VIN = 2.4V ION = 15mA — 5 8
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V
NOTES:
1. Typical values are at VCC = 3.3V and TA = 25°C.
2. Bias resistance is 5KΩ typical at VCC = 3.3V; VBIAS = 2.4V at 25°C.
16
14
12
10
8
6
4
2
0
0.0 0.5
1.0
1.5 2.0 2.5 3.0 3.5 4.0 5.04.5
P1-P3P4-P6P7-P8

QS3VH16800PAG8

Mfr. #:
Buy QS3VH16800PAG8
Manufacturer:
IDT
Description:
Digital Bus Switch ICs 3.3V 20-bit Bus Switch
Lifecycle:
New from this manufacturer.
Delivery:
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