Document Number: 71402
S11-0303-Rev. C, 28-Feb-11
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7
Vishay Siliconix
DG300B, DG301B, DG302B, DG303B
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 (DG301B, DG303B)
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
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8
Document Number: 71402
S11-0303-Rev. C, 28-Feb-11
Vishay Siliconix
DG300B, DG301B, DG302B, DG303B
Notes:
a. Application hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.
APPLICATIONS
The DG300B 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.)
APPLICATIONS 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 - 15 0 4/0.8 - 15 to 15
20 - 20 0 4/0.8 - 20 to 20
15 0 0 4/0.8 0 to 15
Figure 5. Single Supply Op. Amp. Switching
+ 15 V
+ 15 V
+ 15 V
DG301B
TTL Input
+ 5 V
10 k
10 k
5 k
5 k
100 k
10 µF
50 k
V
OUT
Document Number: 71402
S11-0303-Rev. C, 28-Feb-11
www.vishay.com
9
Vishay Siliconix
DG300B, DG301B, DG302B, DG303B
APPLICATIONS
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see www.vishay.com/ppg?71402
.
Figure 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain
Diff. IN B
+ 15 V + 15 V
Diff. IN A
DG301B
DG302B
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
+

DG303BDY-E3

Mfr. #:
Manufacturer:
Vishay / Siliconix
Description:
Analog Switch ICs ANALOGUE SWITCH IC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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