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DG302AAK/883

P1-P3P4-P6P7-P9P10-P10
DG300A_MIL/301A_MIL/302A_MIL
Vishay Siliconix
Document Number: 71677
S-31622—Rev. C, 11-Aug-03
www.vishay.com
7
TEST CIRCUITS
FIGURE 2. Switching Time
V
S
= 3 V
R
L
R
L
+ r
DS(on)
V
O
= V
S
C
L
(includes fixture and stray capacitance)
V-
V+
IN
S
C
L
33 pF
D
5 V
R
L
300
V
O
-15 V
GND
+15 V
50%
90%
0 V
0 V
10%
Logic
Input
Switch
Output
V
S
t
ON
t
OFF
Logic “1” = Switch On
FIGURE 3. Break-Before-Make SPDT (DG301A_MIL)
0 V
50%
50%
50%
0 V
0 V
Logic
Input
Switch
Output
Switch
Output
Logic “1” = Switch On
V
INH
V
S1
V
S2
V
O1
V
O2
t
BBM
V
O1
S
2
S
1
D
2
R
L2
300
C
L2
33 pF
V+
V
O2
V
S2
= 3 V
IN
V
S1
= 3 V
R
L1
300
C
L1
33 pF
C
L
(includes fixture and stray capacitance)
V-
D
1
-15 V
GND
+15 V
FIGURE 4. Charge Injection
ON OFF ON
IN
X
V
O
V
O
C
L
1 nF
3 V
V-
-15 V
V
O
GND
V+
R
g
S
V
g
D
IN
+15 V
DG300A_MIL/301A_MIL/302A_MIL
Vishay Siliconix
www.vishay.com
8
Document Number: 71677
S-31622—Rev. C, 11-Aug-03
APPLICATION HINTS
a
V+
Positive Supply
Voltage
(V)
V-
Negative Supply
Voltage
(V)
GND
Voltage
(V)
V
IN
Logic Input
Voltage
V
INH(min)
/V
INL(max)
(V)
V
S
or V
D
Analog Voltage
Range
(V)
15
20
15
-15
-20
0
0
0
0
4/0.8
4/0.8
4/0.8
-15 to 15
-20 to 20
0 to 15
Note:
a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.
APPLICATIONS
The DG300A_MIL series of analog switches will switch
positive analog signals while using a single positive supply.
This facilitates their use in applications where only one supply
is available. The trade-offs of using single supplies are:
1) Increased r
DS(on)
; 2) slower switching speed. The analog
voltage should not go above or below the supply voltages
which in single operation are V+ and 0 V. (See Input Switching
Threshold vs. Positive Supply Voltage Curve.)
+15 V
+15 V
+15 V
DG301A
TTL Input
+5 V
10 k
10 k
5 k
5 k
100 k
10 F
50 k
V
OUT
FIGURE 5. Single Supply Op Amp Switching
DG300A_MIL/301A_MIL/302A_MIL
Vishay Siliconix
Document Number: 71677
S-31622—Rev. C, 11-Aug-03
www.vishay.com
9
APPLICATIONS
Diff. IN B
+15 V +15 V
Diff. IN A
DG301A
DG302A
GND
+15 V
-15 V
-15 V
+15 V
-15 V
CMOS Logic
Input Select
High = Diff. IN B
CMOS Logic
Gain Select
High = A
V
= 101
R
1
16 k
Ri
1
1.5 k
R
2
75 k
75 k
R
2
75 k
R
4
R
6
75 k
V
OUT
75 k
R
5
67 k
R
7
50 k
V
OS
NULL
Voltage gain of the instrumentation amplifier is:
A
V
= 1 + (In the circuit shown, A
V1
= 10.4, A
V2
= 101)
2R
2
R
1
FIGURE 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain
+
-
P1-P3P4-P6P7-P9P10-P10

DG302AAK/883

Mfr. #:
Buy DG302AAK/883
Manufacturer:
Vishay / Siliconix
Description:
Analog Switch ICs Dual DPST Anlg Swtch
Lifecycle:
New from this manufacturer.
Delivery:
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