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PDF DG308B Data sheet ( Hoja de datos )
| Número de pieza | DG308B | |
| Descripción | (DG308B / DG309B) Improved Quad CMOS Analog Switches | |
| Fabricantes | Vishay Siliconix | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de DG308B (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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DG308B/309B
Vishay Siliconix
Improved Quad CMOS Analog Switches
FEATURES
D "22-V Supply Voltage Rating
D CMOS Compatible Logic
D Low On-Resistance—rDS(on): 45 W
D Low Leakage—ID(on): 20 pA
D Single Supply Operation Possible
D Extended Temperature Range
D Fast Switching—tON: < 200 ns
D Low Glitching—Q: 1 pC
BENEFITS
D Wide Analog Signal Range
D Simple Logic Interface
D Higher Accuracy
D Minimum Transients
D Reduced Power Consumption
D Superior to DG308A/309
D Space Savings (TSSOP)
APPLICATIONS
D Industrial Instrumentation
D Test Equipment
D Communications Systems
D Disk Drives
D Computer Peripherals
D Portable Instruments
D Sample-and-Hold Circuits
DESCRIPTION
The DG308B/309B analog switches are highly improved
versions of the industry-standard DG308A/309. These
devices are fabricated in Vishay Siliconix’ proprietary silicon
gate CMOS process, resulting in lower on-resistance, lower
leakage, higher speed, and lower power consumption.
These quad single-pole single-throw switches are designed
for a wide variety of applications in telecommunications,
instrumentation, process control, computer peripherals, etc.
An improved charge injection compensation design minimizes
switching transients. The DG308B and DG309B can handle
up to "22-V input signals. An epitaxial layer prevents latchup.
All devices feature true bi-directional performance in the on
condition, and will block signals to the supply levels in the off
condition.
The DG308B is a normally open switch and the DG309B is a
normally closed switch. (See Truth Table.)
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG308B
Dual-In-Line, SOIC and TSSOP
IN1
D1
S1
V–
GND
S4
D4
IN4
1
2
3
4
5
6
7
8
16 IN2
15 D2
14 S2
V+
13
NC
12
11 S3
10 D3
9 IN3
Top View
Document Number: 70047
S-52896—Rev. E, 14-Jul-97
TRUTH TABLE
Logic
DG308B DG309B
0
OFF
ON
1 ON OFF
Logic “0” v 3.5V
Logic “1” w 11 V
ORDERING INFORMATION
Temp Range
Package
Part Number
–40 to 85_C
–55 to 125_C
16-Pin Plastic DIP
16-Pin Narrow SOIC
16-Pin TSSOP
16-Pin CerDIP
DG308BDJ
DG309BDJ
DG308BDY
DG309BDY
DG308BDQ
DG309BDQ
DG308BAK
DG308BAK/883
DG309BAK
DG309BAK/883
www.vishay.com S FaxBack 408-970-5600
4-1
1 page  
DG308B/309B
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Off Isolation vs. Frequency
120
V+ = 15 V
110 V– = –15 V
100
90
RL = 50 W
80
70
60
50
40
10 k
100 k
1M
f – Frequency (Hz)
10 M
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+
INX
GND
V–
TEST CIRCUITS
Level
Shift/
Drive
FIGURE 1.
SX
V–
V+
DX
VS = +3 V
12 V
+15 V
V+
SD
IN
GND
V–
RL
1 kW
VO
CL
35 pF
–15 V
VO = VS
RL
RL + rDS(on)
Logic
Input
12 V
0V
Switch
Output
VO
50%
tr <20 ns
tf <20 ns
90%
tOFF
tON
Document Number: 70047
S-52896—Rev. E, 14-Jul-97
FIGURE 2. Switching Time
www.vishay.com S FaxBack 408-970-5600
4-5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet DG308B.PDF ] | |
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