HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPST SWITCH
INDUSTRIAL TEMPERATURE RANGE
QUICKSWITCH
®
PRODUCTS
HIGH-PERFORMANCE CMOS ANALOG
FOUR-CHANNEL SPST SWITCH
WITH INDIVIDUAL ENABLES
FEATURES:
•
•
•
•
•
•
•
•
•
•
Low ON resistance: r
DS
(
ON
) = 5Ω
Ω
Wide bandwidth: 1.4GHz (-3dB point)
Crosstalk: 122dB at 50KHz, -80dB at 5MHz, -65dB at 30MHz
Off-isolation: -100dB at 50KHz, -75dB at 5MHz, -45dB at
30MHz
Single 5V supply
Bidirectional signal flow
TTL-compatible control inputs
Ultra-low quiescent current: 3μA
μ
Switch turn on time of 6.5ns
Available in QSOP package
IDTQS4A101
DESCRIPTION:
APPLICATIONS:
•
•
•
•
•
•
•
High-speed video signal switching/routing
Audio signal switching/routing
Data acquisition
ATE systems
Telecomm routing
Token Ring transceivers
High-speed networking
The QS4A101 is a high-performance CMOS analog four-channel SPST
switch with individual enables. This device provides a set of four high-speed
CMOS switches connecting inputs to outputs. The low ON resistance of the
QS4A101 allows inputs to be connected to outputs with low insertion loss and
high bandwidth.
The QS4A101, with 1.4GHz bandwidth, is ideal for high-performance
video signal switching, audio signal switching, and telecomm routing
applications. Low power dissipation makes this device ideal for battery
operated and remote instrumentation applications.
The QS4A101 is offered in the QSOP package which has several
advantages over conventional packages such as PDIP and SOIC, includ-
ing:
• Reduced signal delays due to denser component packaging on circuit
boards
• Reduced system noise due to less pin inductance
The QS4A101 is characterized for operation at -40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
A1
A2
A3
A4
B1
B2
B3
B4
E1
E2
E3
E4
CO NTRO L
L O G IC
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2014 Integrated Device Technology, Inc.
APRIL 2014
1
DSC-5552/3
IDTQS4A101
HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPST SWITCH
INDUSTRIAL TEMPERATURE RANGE
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(1)
Symbol
V
TERM
(2)
Description
Supply Voltage to Ground
DC Switch Voltage V
S
Analog Input Voltage
DC Input Voltage V
IN
AC Input Voltage (pulse width
≤20ns)
DC Output Current
Maximum Power Dissipation
Storage Temperature
Max
–0.5 to +7
–0.5 to +7
–0.5 to +7
–0.5 to +7
–3
120
0.7
–65 to +150
Unit
V
V
V
V
V
mA
W
°C
V
TERM
(3)
—
V
TERM
(3)
V
AC
I
OUT
P
MAX
T
STG
NC
E1
A1
B1
E2
A2
B2
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
E4
A4
B4
E3
A3
B3
NC
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. V
CC
terminals.
3. All terminals except V
CC
.
QSOP
TOP VIEW
PIN DESCRIPTION
Pin Names
A
1
-A
4
B
1
-B
4
E
1
-E
4
I/O
I/O
I/O
I
Port A
Port B
Port Switch Enable
Description
FUNCTION TABLE
(1)
E
L
L
H
A
H
L
X
B
H
L
X
Function
Connect
Connect
Disconnect
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
POWER SUPPLY CHARACTERISTICS
Symbol
I
CC
Parameter
Supply Current
Test Conditions
V
CC
= Max., V
IN
= GND or V
CC
Max.
3
Unit
μA
2
IDTQS4A101
HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPST SWITCH
INDUSTRIAL TEMPERATURE RANGE
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: T
A
= –40°C to +85°C, V
CC
= 5V ± 5%
Symbol
Analog Switch
V
IN
r
DS
(
ON
)
I
C(OFF)
I
C(ON)
Analog Signal Range
(2)
Drain-source ON resistance
(2,3)
Channel Off Leakage Current
Channel On Leakage Current
Vcc = Min., V
IN
= 0V, I
ON
= 30mA
Vcc = Min., V
IN
= 2.4V, I
ON
= 15mA
A = Vcc or 0V, B = 0V or Vcc,
E
= Vcc
A = B = 0V
(each channel is turned on sequentially)
Digital Control
V
IH
V
IL
t
ON(E)
t
OFF(E)
t
PD
f
3dB
X
TALK
C
(OFF)
C
(ON)
Q
CI
Input HIGH Voltage
Input LOW Voltage
Enable Turn-On Time
E
to A, B
Enable Turn-Off Time
E
to A, B
Group Delay
(2,4a)
-3dB Bandwidth
Off-isolation
Crosstalk
Switch Off Capacitance
Switch On Capacitance
Charge Injection
Guaranteed Logic HIGH for Control Pins
Guaranteed Logic LOW for Control Pins
R
L
= 1KΩ, C
L
= 100pF
(See Switching Time)
R
L
= 1KΩ, C
L
= 100pF
(See Switching Time)
R
L
= 1KΩ, C
L
= 100pF
V
IN
= 0 to 1V, 1Vp-p, R
L
= 75Ω
V
IN
= 0 to 1V, 1Vp-p, R
L
= 75Ω, f = 5.5MHz
V
IN
= 0 to 1V, 1Vp-p, R
L
= 75Ω, f = 30MHz
E
= Vcc, V
IN
= V
OUT
= 0V
E
= 0V, V
IN
= V
OUT
= 0V
—
—
—
—
—
—
—
—
1.4
-80
-75
5
10
1.5
250
—
—
—
—
—
—
ps
GHz
dB
dB
pF
pF
pC
0.5
—
6
ns
2
—
0.5
—
—
—
—
0.8
6.5
V
V
ns
-0.5
—
—
—
—
1
5
13
1
1
Vcc - 1
7
17
—
—
nA
nA
V
Ω
Parameter
Test Conditions
Min.
Typ.
(1)
Max.
Unit
Dynamic Characteristics
NOTES:
1. Typical values are at V
CC
= 5.0V, T
A
= 25°C.
2. Max value is guaranteed but not production tested.
3. Measured by voltage drop between A and C pins at indicated current through the switch ON resistance is determined by the lower of the voltages on the two (A, B)
pins.
4. The bus switch contributes no group delay other than the RC delay of the ON resistance of the switch and load capacitance. Group 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.
3
IDTQS4A101
HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPST SWITCH
INDUSTRIAL TEMPERATURE RANGE
TYPICAL CHARACTERISTICS
180
V
C C
= 5V
R
L
= 75
Ω
150
60
V
CC
= 5V
R
L
= 75Ω
50
120
(dB )
40
(dB)
Crosstalk
30
Off-isolation
90
Crosstalk
Off-isolation
60
20
30
10
0
1K
10K
100K
1M
10M
100M
1G
10G
Freq uen cy (H z)
0
100M
200M
300M 400M
500M
Frequency (Hz)
600M
700M
Off-isolation and Crosstalk vs. Frequency
NOTES:
1. Crosstalk = 20 log |V
O
/V
S
|
2. Off-isolation = 20 log |V
O
/V
S
|
Off-isolation and Crosstalk vs. Frequency
NOTES:
1. Crosstalk = 20 log |V
O
/V
S
|
2. Off-isolation = 20 log |V
O
/V
S
|
160
V
CC
= 5V
R
L
= 75Ω
140
Crosstalk
120
(dB)
2
1
0
100
Off-isolation
1
R
L
= 75Ω
(dB)
20K
30K
40K
50K
60K
70K
Frequency (Hz)
80
2
60
3
40
10K
4
5
Off-isolation and Crosstalk vs. Frequency
V
CC
= 5V
6
1K
10K
100K
1M
10M
100M
1G
10G
NOTES:
1. Crosstalk = 20 log |V
O
/V
S
|
2. Off-isolation = 20 log |V
O
/V
S
|
Frequency (Hz)
Insertion Loss vs. Frequency
NOTE:
1. Insertion Loss = 20 log |V
O
/V
S
|
4
IDTQS4A101
HIGH-PERFORMANCE CMOS ANALOG FOUR-CHANNEL SPST SWITCH
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