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CMOS/DMOS Wideband
High-Frequency Multiplexer
CWB4500
FEATURES
••
High OFF Isolation. . . . . . . . . . . . . . . . . > 62dB @ 10MHz
••
Low Channel-to-Channel Cros stalk. . . > 80dB @ 10MHz
••
TT L Cap a tib l e Input s. . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
••
Low ON Resistance . . . . . . . . . . . . . . . . . . 40ohm typical
••
Wide Ban dw idt h. . . . . . . . . . . . . . . . . . -3.0 d B @ 100MH z
••
High Speed Logic Control
APPLICATIONS
••
RF and Video Switching
••
High Speed Pr eci si on Dat a Acq ui sitio n
••
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 ver y fast DMO S sw itching 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 CONFIGU R ATION
FUNCTION T ABLE
FUNCTION DIAGRAM
All devices contain diodes to protect inputs against damage
due to high static voltages or electric fields; however, it is
advised th a t p re cau ti o ns be ta ken no t to exceed the maximum
recommended input voltages. All unused inputs must be
connected to an appro pri ate logic level (eit he r V
cc
or GND).
ENABLE
A
0
A
1
CHANNEL
H x x OFF
LLLS
1
LHLS
2
LLHS
3
LHHS
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
A0A1EN
231
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
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CWB4500
CORPORATION
ABSOLUTE MAXIMUM RATINGS
V- Negative Supply Voltage . . . . . . . . . . . . . . . . . . . . -20V
V+ Positive Supply Volt age. . . . . . . . . . . . . . . . . . . . . +20V
V
IN
Control Input Vo ltag e Range . . . . . . . . . . . . . . V+ +0.3V
V- -0.3V
I
L
Continuous Current, any Pin excep t S or D. . . . . . 20mA
I
S
Continuou s Curre nt, S or D . . . . . . . . . . . . . . . . . . 30mA
I
S
Peak Pulsed Current, S or D, 80µsec, 1%,
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100mA
T
J
Junction Temperature Range. . . . . . . . . . -55 to +125oC
T
S
Storage Temperature Range . . . . . . . . . . -55 to +125oC
P
D
Power Dissipation (der at e at 12mW / oC,
above +85
o
C). . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW
RECOMMENDED OPERAT ING CONDITIONS
V- Negative Supply Voltage . . . . . . . . . . . . . . . - 8.0 to -15 V
V+ Positive Supply V olt age. . . . . . . . . . . . . . . +8.0 to +15V
V
IN
Control Input Vo ltage Range . . . . . . . . . . . . . . 0 to +5V
T
OP
Operating Temperatur e . . . . . . . . . . . . . . . . . . 0 to 85oC
ELECTRICAL CHARACTERISTICS (V- = -15V, V+ = +15v unless othe rwise not ed, T
A
= +25oC)
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
Ω
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
µA
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, VS = -10V
I
S(OFF)
0.4 5.0
V
S
= +10V, VD = -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, RL = 50Ω
f = 100MHz, R
L
= 50Ω
Single Channel Crosstalk
80
Frequency Roll-OFF (Bandwidth)
1.0 3.0
C
d
Output Node Capacitance
8.0 12.0
pF
VD = 0
f = 1MHz, V
IN
= 0
C
s
Input Node Capacitance
2.5 4.0
VS = 0
ELECTRICAL CHARACTERISTICS (V- = -15V, V+ = +15V unless other wise no ted)
LIMITS A T 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
Ω
V
S
= -10V, IS = -1.0mA
120
V
S
= +2.0V, IS = +1.0mA
240
V
S
= +10V, IS = +1.0mA
I
IN
Logic Input
Leakage Current
1.0
µA
V
IN
= +5.0V
2.0
V
IN
= +1 5V
I
D(OFF)
Switch OFF
Leakage Currents
100
nA
V
D
= +10V, VS = -10V
I
S(OFF)
100
V
S
= +10V, VD = -10V
I-
Supply
Quiescent Currents
-4.0
mA
V
IN
= 0 or V+
I+
4.0
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CWB4500
CORPORATION
TYPICAL PERFORMANCE CHARACTERI STICS (TA = +25oC unless otherwise specified)
SWITCH OFF ISOLATION REJECTION RATIO
-VS-
FREQUENCY
90
80
70
60
50
40
30
20
12 51020
50
100
f - Frequency (MHz)
100
V-, V+ = +15V_
R = 50
L
12 51020
50
100
f - Frequency (MHz)
V-, V+ = +15V_
0
1
2
3
4
5
6
7
8
I - Insertion Loss (dB)
L
V = 0.1V
S
RMS
R = 50
L
Ω
L
Ω
R = 1K
OIRR - OFF Isolation Rejection Ratio (dB)
Ω
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(ON)
r - Switch On Resistance (Ohms)
Ω
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_
Ω
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
DS(ON)
r - Switch On Resistance (Ohms)
V-, V+ - Supply Voltage (Volts)
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CWB4500
CORPORATION
TYPICAL PERFORMANCE CHARACTERI STICS (TA = +25oC unless otherwise specified)
-50 -25 0 +25
+50 +75 +100 +125
T - Ambient Temperature ( C)
A
o
0
SUPPLY CURRENTS
-VS-
AMBIENT TEMPERATURE
I - Supply Current (mA)
I-
I+
IN
V = +2.4V
+15V_V-, V+ =
3.5
3.0
2.5
2.0
1.5
1.0
0.5
CAPACITANCE
-VS-
ANALOG INPUT VOLTAGE
12.0
9.0
6.0
3.0
0
-10
-5.0 0
+5.0
V - Analog Input (Volts)
S
C - Capacitance (pF)
+10
C
OUT
IN
C
+15V_V-, V+ =
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