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Part Number CWB309

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CMOS/DMOS
Quad Monolithic SPST
Wide Band Analog Switches
CWB308 / CWB309
FEATURES
·
·
Low Insertion Loss . . . . . . . . . . . . . 0.9 x DC @ 100MHz
·
·
Low Channel-to-Channel Crosstalk. . . . . . . . . . . . -80dB
·
·
High OFF Isolation . . . . . . . . . . . . . . . . . 68dB @ 10MHz
·
·
Fast Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . <140ns
·
·
Low ON Resistance . . . . . . . . . . . . . . . . . . . . . . 40
(typ)
APPLICATIONS
·
·
High Speed Multiplexing
·
·
RF & Video Switches
·
·
Sample and Hold Switches
·
·
Track and Hold Switches
·
·
Computer Peripherals
DESCRIPTION
The Calogic CWB308 and CWB309 feature fast switching
(<140ns) and low ON resistance (<40
) for excellent
performance in applications in communications, computer
peripherals and instrument controls. This series combines
low power CMOS input logic and level translation circuitry with
high speed, low capacitance DMOS switches in a monolithic
structure. The CWB308 and CWB309 have CMOS
compatible inputs and also have a standard pin configuration
for second sourcing.
ORDERING INFORMATION
Part
Package
Temperature Range
CWB308CP
Plastic 16-Pin Dip
0 to +85
o
C
CWB308CY
Plastic SO-16 Surface Mount 0 to +85
o
C
XCWB308
Sorted Chips in Carriers
0 to +85
o
C
CWB309CP
Plastic 16-Pin Dip
0 to +85
o
C
CWB309CY
Plastic SO-16 Surface Mount 0 to +85
o
C
XCWB309
Sorted Chips in Carriers
0 to +85
o
C
CORPORATION
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN1
D1
S1
V-
GND
S4
D4
IN4
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN1
D1
S1
V-
GND
S4
D4
IN4
IN2
D2
S2
V+
N/C
S3
D3
IN3
IN2
D2
S2
V+
N/C
S3
D3
IN3
TOP VIEW
TOP VIEW
16-PIN DIP
SO-16
CWB308CY
CWB309CY
CWB308CP
CWB309CP
Logic
CWB308
CWB309
0
OFF
ON
1
ON
OFF
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).
LOGIC TABLE
PIN CONFIGURATION
FUNCTIONAL BLOCK DIAGRAMS
IN
IN
IN
IN
S
D
3
4
1
2
S
D
S
D
S
D
1
1
2
2
3
3
4
4
IN
IN
IN
IN
S
D
3
4
1
2
S
D
S
D
S
D
1
1
2
2
3
3
4
4
Four SPST Switches per Package.
Switches shown in Logic '1' Input Position.
CWB308
CWB309
CWB
CWB308 / CWB309
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
µ
sec, 1%,
Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180mA
T
J
Junction Temperature Range. . . . . . . . . . -55 to +125
o
C
T
S
Storage Temperature Range . . . . . . . . . . -55 to +125
o
C
P
D
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . 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
V
S
Analog Switch Voltage Range . . . . . . . . . . . -10 to +10V
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)
Switch ON Resistance
40
80
ohms
V
S
= -10V
45
80
V
S
= +2.0V
100
160
V
S
= +10V
V
IH
High Level Input Voltage
4.5
3.4
V
V
IL
Low Level Input Voltage
1.0
I
IN
Logic Input Leakage Current
0.01
0.1
µ
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
CWB309
V
IN
= 5.0V
CWB308
V
IN
= 1.0V
I
S(OFF)
0.4
5.0
V
S
= +10V, V
D
= -10V
I-
Negative Supply Quiescent Current
-0.1
-0.5
µ
A
I+
Positive Supply Quiescent Current
0.1
0.5
DYNAMIC
t
ON
Switch Turn-ON Time
140
250
nSec
V
IN
= 1.0V CWB308
V
IN
= 5.0V CWB309
t
OFF
Switch Turn-OFF Time
80
220
O
IRR
Off Isolation Rejection Ratio
60
62
dB
f = 10MHz, R
L
= 50
C
CRR
Cross-Coupling Rejection Ratio
80
f = 10MHz, RL = 50
C
d
Drain-Node Capacitance
0.3
pF
V
IN
= 1.0V CGWB308
V
IN
= 5.0V CWB309
V
D
= V
S
= 0, f = 1MHz
C
s
Source-Node Capacitance
3.0
CWB308 / CWB309
CORPORATION
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)
Switch ON Resistance
120
ohms
V
S
= -10V
120
V
S
= +2.0V
240
V
S
= +10V
I
IN
Logic Input
Leakage Current
1.0
µ
A
V
IN
= +5.0V
2.0
V
IN
= +15V
I
D(OFF)
Switch OFF
Leakage Current
100
nA
V
D
= +10V, V
S
= -10V
I
S(OFF)
100
V
S
= +10V, V
D
= -10V
I-
Supply
Quiescent Current
-20
µ
A
I+
20
TEST WAVE FORMS
3.0V
50%
0
0
0.9
(V ) SWITCH INPUT
S
RISE
FALL
LOGIC INPUT
t < 6nSEC
t < 4nSEC
V
0
t
ON
t
OFF
R + r
L
DS(ON)
R
L
V =
0
SWITCH OUTPUT
(
)
V
S
CWB308 / CWB309
CORPORATION
50
D
S
C
V+
C
V-
LOGIC 1 = +5V
A
B
µ
C = 0.22 F // 10 F
OFF-ISOLATION
PHILIPS
SCOPE
KROHNHITE
240D
(or equivalent)
50
µ
PM3214
(or equivalent)
IN
IL
V+
LT
GND
V-
S
D
CMOS CIRCUITRY
DMOS SWITCH
FUNCTIONAL BLOCK DIAGRAMS (1 of 4 channels)
SWITCHING TIMES TEST CIRCUIT
T = +25 C
A
o
OFF ISOLATION REJECTION RATIO
-VS-
FREQUENCY
60
55
50
45
40
35
20
30
40
50
60
70
80
90 100
f - Frequency (MHz
O
I
R
R
-
O
F
F
Is
ol
ati
on R
e
j
e
c
t
i
on R
a
ti
o (
db)
V-, V+ = +15V
_
R = 50
L
Switch Contacts:
Switches are bi-directional (Analog Input can be to
Source or Drain. However, for optimum performance in
Video Application, connect Input to Source and Output
to Drain.
OFF ISOLATION TEST CIRCUIT
+15V
-15V
C = 35pF
SWITCH
OUTPUT
SWITCH
INPUT
+3V
R =
1K
L
L
LOGIC
INPUT
SWICHING TIMES
-VS-
SUPPLY VOLTAGES
300
200
100
0
T = +25 C
A
o
t
on
t
off
Supply Voltages (Volts)
+5
+10
+15
S
w
it
c
h
in
g
T
i
m
e
(
n
Se
c
)
_
_
_
CWB308 / CWB309
CORPORATION
r
-
S
w
i
t
c
h
O
N
Res
i
s
t
anc
e (
O
hms
)
D
S
(
on)
SWITCH ON RESISTANCE
-VS-
SUPPLY VOLTAGES
65
60
55
50
45
+5.0
+6.0
+8.0
+10
+12
+15
_
V-, V+ - Supply Voltages (Volts)
R = 50
L
Vanalog = 100mVrms
f = 1KHz
T = +25 C
A
o
_
_
_
_
_
SWITCH ON RESISTANCE
SWITCH ON RESISTANCE -VS- FREQUENCY TEST CIRCUIT
R = 50
L
Vanalog = 100mVrms
T = +25 C
A
o
SWITCH ON RESISTANCE
-VS-
FREQUENCY
65
60
55
50
20
40
60
80
100
V-, V+ = +8.0V
_
+12V
_
V-, V+ =
+10V
_
V-, V+ =
+15V
_
V-, V+ =
f - Frequency (MHz)
D
S
(
on)
r
-
S
w
i
t
c
h
O
N
Res
i
s
t
anc
e (
O
hms
)
R = 50
L
Vanalog = 100mVrms
T = +25 C
A
o
40
60
80
100
+12V
_
V-, V+ =
+10V
_
V-, V+ =
20
.55
.50
.45
.40
.35
.30
f - Frequency (MHz)
S
w
it
ch
ON

R
e
sist
a
n
c
e

(

/
V
)
SWITCH ON RESISTANCE
-VS-
SUPPLY VOLTAGES AND FREQUENCY
SWITCH ON RESISTANCE
-VS-
ANALOG VOLTAGE
140
120
100
80
60
40
20
0
-10
-5.0
0
+5.0
+10
V - Source Voltage (Volts)
r
-
S
w
i
t
c
h
O
N
Res
i
s
t
an
c
e
(
O
hms
)
D
S
(
on)
T = +25 C
A
o
V-, V+ = +15V
_
R = 50
L
S
50
D
S
C
V+
C
V-
LOGIC 1 = +5V
µ
C = 0.22 F // 10 F
50
µ
ON-RESISTANCE
20MHz to 100MHz
HP
TRACKING
GENERATOR
(or equivalent)
HP
SPECTRUM
ANALYSER
(or equivalent)