DG409DY Vishay, DG409DY Datasheet - Page 12

IC, ANALOG MULTIPLEXER, DUAL 4X1, SOIC16

DG409DY

Manufacturer Part Number
DG409DY
Description
IC, ANALOG MULTIPLEXER, DUAL 4X1, SOIC16
Manufacturer
Vishay
Type
Analog Multiplexerr
Datasheet

Specifications of DG409DY

Multiplexer Configuration
Dual 4:1
Number Of Inputs
8
Number Of Outputs
2
Number Of Channels
2
Analog Switch On Resistance
100@±15VOhm
Package Type
SOIC N
Power Supply Requirement
Single/Dual
Single Supply Voltage (min)
13V
Single Supply Voltage (typ)
15/18/24/28V
Single Supply Voltage (max)
44V
Dual Supply Voltage (min)
±5V
Dual Supply Voltage (typ)
±9/±12/±15/±18V
Dual Supply Voltage (max)
±20V
Power Dissipation
600mW
Mounting
Surface Mount
Pin Count
16
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
No. Of Circuits
1
Supply Current
10µA
On State Resistance Max
40ohm
Supply Voltage Range
± 5V To ± 20V
Operating Temperature Range
-40°C To +85°C
Analog Switch Case Style
SOIC
Lead Free Status / RoHS Status
Not Compliant

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0
DG408, DG409
Vishay Siliconix
APPLICATION HINTS
Overvoltage Protection
A very convenient form of overvoltage protection consists of
adding two small signal diodes (1N4148, 1N914 type) in
series with the supply pins (see figure 10). This arrangement
effectively blocks the flow of reverse currents. It also floats
the supply pin above or below the normal V+ or V- value. In
this case the overvoltage signal actually becomes the power
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?70062.
www.vishay.com
12
Enable In
Clock
(MUX On-Off Control)
In
8-Channel Sequential Multiplexer/Demultiplexer
NC
(Outputs)
Analog
Inputs
B
A
DM7493
r
01
IN
IN
+ 15 V
+ 15 V
r
02
GND
Q
Q
Q
Q
B
C
D
A
+ 15 V
S
S
S
S
S
S
S
S
A
NC
V+
1
2
3
4
5
6
7
8
0
A
DG408
GND
Fig. 10 - Overvoltage Protection Using Blocking Diodes
1
A
V
2
- 15 V
g
EN
V-
D
Analog
Output
S
X
(Input)
Reset Enable
Clock
Fig. 11
In
V+
V-
Differential 4-Channel Sequential Multiplexer/Demultiplexer
supply of the IC. From the point of view of the chip, nothing
has changed, as long as the difference VS - (V-) does not
exceed + 44 V. The addition of these diodes will reduce the
analog signal range to 1 V below V+ and 1 V above V-, but it
preserves the low channel resistance and low leakage
characteristics.
1N4148
1N4148
DG408
Differential
(Outputs)
Analog
Inputs
J
CLK
K
CLEAR
1/2 MM74C73
+ 15 V
GND
D
Q
Q
+ 15 V
NC
S
S
S
S
S
S
S
S
V+
1a
2a
3a
4a
1b
2b
3b
4b
A
0
DG409
GND
A
1
J
1/2 MM74C73
CLK
K
- 15 V
S10-1474-Rev. I, 05-Jul-10
EN
Document Number: 70062
V-
CLEAR
D
D
a
b
6
Differential
Q
Q
Outputs
(Inputs)
Analog
NC

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