CMOS/DMOS Wideband
High-Frequency Multiplexer
CWB4500
FEATURES
High OFF Isolation. . . . . . . . . . . . . . . . . > 62dB @ 10MHz
Low Channel-to-Channel Crosstalk. . . > 80dB @ 10MHz
TTL Capatible Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Low ON Resistance . . . . . . . . . . . . . . . . . . 40ohm typical
Wide Bandwidth. . . . . . . . . . . . . . . . . . -3.0dB @ 100MHz
High Speed Logic Control
APPLICATIONS
RF and Video Switching
High Speed Precision Data Acquisition
ATE
DESCRIPTION
The CWB4500 is a very high performance Monolithic 4 Channel
Wideband/Video Multiplexer designed for switching wide
bandwidth analog and digital signals. The high speed, low ON
resistance and low capacitance is achieved through Calogic's
proprietary CMOS/DMOS process that combines low-power
CMOS control logic with very fast DMOS switching FETs.
ORDERING INFORMATION
Part
Package
Temperature Range
CWB4500CP Plastic 14-Pin Dip
0 to +85
o
C
CWB4500CY Plastic SO-14 Surface Mount 0 to +85
o
C
XCWB4500
Sorted Chips in Carriers
0 to +85
o
C
CORPORATION
PIN CONFIGURATION
FUNCTION TABLE
FUNCTION DIAGRAM
All devices contain diodes to protect inputs against damage
due to high static voltages or electric fields; however, it is
advised that precautions be taken not to exceed the maximum
recommended input voltages. All unused inputs must be
connected to an appropriate logic level (either V
cc
or GND).
ENABLE
A
0
A
1
CHANNEL
H
x
x
OFF
L
L
L
S
1
L
H
L
S
2
L
L
H
S
3
L
H
H
S
4
X = Undefined
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUT
V-
N/C
IN 4
N/C
IN 3
N/C
0
1
ENABLE
V+
IN 1
IN 2
GND
A
A
CWB4500CP
A
0
A
1
EN
2
3
1
DECODER
IN 1
IN 2
IN 3
IN 4
5
6
9
11
14
OUT
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUT
V-
N/C
IN 4
N/C
IN 3
N/C
0
1
ENABLE
V+
IN 1
IN 2
GND
A
A
CWB4500CY
CWB
CWB4500
CORPORATION
ABSOLUTE MAXIMUM RATINGS
V-
Negative Supply Voltage . . . . . . . . . . . . . . . . . . . . -20V
V+
Positive Supply Voltage . . . . . . . . . . . . . . . . . . . . . +20V
V
IN
Control Input Voltage Range . . . . . . . . . . . . . . V+ +0.3V
V- -0.3V
I
L
Continuous Current, any Pin except S or D. . . . . . 20mA
I
S
Continuous Current, S or D . . . . . . . . . . . . . . . . . . 30mA
I
S
Peak Pulsed Current, S or D, 80
sec, 1%,
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
T
J
Junction Temperature Range. . . . . . . . . . -55 to +125
o
C
T
S
Storage Temperature Range . . . . . . . . . . -55 to +125
o
C
P
D
Power Dissipation (derate at 12mW/
o
C,
above +85
o
C). . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
RECOMMENDED OPERATING CONDITIONS
V-
Negative Supply Voltage . . . . . . . . . . . . . . . -8.0 to -15V
V+
Positive Supply Voltage . . . . . . . . . . . . . . . +8.0 to +15V
V
IN
Control Input Voltage Range . . . . . . . . . . . . . . 0 to +5V
T
OP
Operating Temperature . . . . . . . . . . . . . . . . . . 0 to 85
o
C
ELECTRICAL CHARACTERISTICS (V- = -15V, V+ = +15v unless otherwise noted, T
A
= +25
o
C)
SYMBOL
PARAMETER
MIN
TYP
MAX
UNITS
TEST CONDITIONS
STATIC
V
ANALOG
Analog Signal Range
-10
+10
V
r
DS(ON)
Channel ON Resistance
40
80
V
S
= -10V
45
80
V
S
= +2.0V
100
160
V
S
= +10V
V
IH
Logic High Level Input Voltage
4.5
3.4
V
V
IL
Logic Low Level Input Voltage
1.0
I
IN
Logic Input Leakage Current
0.01
0.1
A
V
IN
= +5.0V
0.02
0.1
V
IN
= +15V
I
D(OFF)
Switch OFF Leakage Current
0.2
5.0
nA
V
D
= +10V, V
S
= -10V
I
S(OFF)
0.4
5.0
V
S
= +10V, V
D
= -10V
I-
Negative Supply Quiescent Current
-1.4
-4.0
mA
V
IN
= 0 or V+
I+
Positive Supply Quiescent Current
1.6
4.0
DYNAMIC
t
ON
Switch Turn-ON Time (All inputs)
150
250
nsec
V
IN
= 5.0V
t
OFF
Switch Turn-OFF Time (All inputs)
120
220
C
CRR
All Crosstalk
62
dB
f = 10MHz, R
L
= 50
f = 100MHz, R
L
= 50
Single Channel Crosstalk
80
Frequency Roll-OFF (Bandwidth)
1.0
3.0
C
d
Output Node Capacitance
8.0
12.0
pF
V
D
= 0
f = 1MHz, V
IN
= 0
C
s
Input Node Capacitance
2.5
4.0
V
S
= 0
ELECTRICAL CHARACTERISTICS (V- = -15V, V+ = +15V unless otherwise noted)
LIMITS AT TEMPERATURE EXTREMES
SYMBOL
PARAMETER
MAXIMUM @ T
A
=
UNITS
TEST CONDITIONS
+85
o
C
STATIC
V
ANALOG
Analog Signal Range
10
V
r
DS(ON)
Channel ON Resistance
120
V
S
= -10V, I
S
= -1.0mA
120
V
S
= +2.0V, I
S
= +1.0mA
240
V
S
= +10V, I
S
= +1.0mA
I
IN
Logic Input
Leakage Current
1.0
A
V
IN
= +5.0V
2.0
V
IN
= +15V
I
D(OFF)
Switch OFF
Leakage Currents
100
nA
V
D
= +10V, V
S
= -10V
I
S(OFF)
100
V
S
= +10V, V
D
= -10V
I-
Supply
Quiescent Currents
-4.0
mA
V
IN
= 0 or V+
I+
4.0
CWB4500
CORPORATION
TYPICAL PERFORMANCE CHARACTERISTICS (T
A
= +25
o
C unless otherwise specified)
SWITCH OFF ISOLATION REJECTION RATIO
-VS-
FREQUENCY
90
80
70
60
50
40
30
20
1
2
5
10
20
50
100
f - Frequency (MHz)
100
V-, V+ = +15V
_
R = 50
L
1
2
5
10
20
50
100
f - Frequency (MHz)
V-, V+ = +15V
_
0
1
2
3
4
5
6
7
8
I -
Ins
e
r
t
i
on Los
s
(
d
B
)
L
V = 0.1V
S
RMS
R = 50
L
L
R = 1K
O
I
R
R
-
O
F
F
Is
ol
ati
on R
e
j
e
c
t
i
on R
a
ti
o (
d
B
)
INSERTION LOSS
-VS-
FREQUENCY
SWITCH ON RESISTANCE
-VS-
ANALOG VOLTAGE
200
175
150
125
100
75
50
25
0
-10
-5.0
0
+5.0
+10
V - Source Voltage (Volts)
S
DS
(
O
N)
r
-
S
w
i
t
c
h
O
n
Re
s
i
s
t
a
n
c
e
(
O
h
m
s
)
R = 50
L
+15V
_
V-, V+ =
T = +25 C
A
200
175
150
125
100
75
50
25
T = +25 C
A
SWITCH ON RESISTANCE
-VS-
SUPPLY VOLTAGE
+5.0
_
+7.5
_
+10
_
+12.5
_
+15
_
R = 50
L
0
V = 0.1V
f = 1KHz
S
RMS
o
o
T = +125 C
A
o
T = +85 C
A
o
T = +125 C
A
o
T = +85 C
A
o
D
S(O
N
)
r
-
S
w
i
t
c
h
O
n
Res
i
s
t
anc
e (
O
hms
)
V-, V+ - Supply Voltage (Volts)
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