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DG304B Schematic ( PDF Datasheet ) - Vishay

Teilenummer DG304B
Beschreibung CMOS Analog Switches
Hersteller Vishay
Logo Vishay Logo 




Gesamt 8 Seiten
DG304B Datasheet, Funktion
DG304B/306B/307B
Vishay Siliconix
CMOS Analog Switches
FEATURES
D "15-V Input Range
D Fast Switching—tON: 110 ns
D Low rDS(on): 30 W
D Single Supply Operation
D CMOS Logic Levels
D Micropower: 30 nW
BENEFITS
APPLICATIONS
D Full Rail-to-Rail Analog Signal Range
D Low Signal Error
D Wide Dynamic Range
D Low Power Dissipation
D Low Level Switching Circuits
D Programmable Gain Amplifiers
D Portable and Battery Powered
Systems
DESCRIPTION
The DG304B, DG306B and DG307B monolithic CMOS
switches were designed for applications in communications,
instrumentation and process control. This series is well suited
for applications requiring fast switching and nearly flat
on-resistance over the entire analog range.
applications, without sacrificing switching speed.
Break-before-make switching action is guaranteed, and an
epitaxial layer prevents latchup. Single supply operation (for
positive switch voltages) is allowed by connecting the V– rail
to 0 V.
Designed on the Vishay Siliconix PLUS-40 CMOS process to
achieve low power consumption and excellent on/off switch
performance, these switches are ideal for battery powered
Each switch conducts equally well in both directions when on,
and blocks up to the supply voltage when off. These switches
are CMOS input compatible.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG304B
NC
D1
NC
S1
NC
IN1
GND
1
2
3
4
5
6
7
Plastic DIP
Top View
14 V+
13 D2
12 NC
11 S2
10 NC
9 IN2
8 V–
TRUTH TABLE
Logic
Switch
0 OFF
1 ON
Logic “0” v 3.5 V
Logic “1” w 11 V
DG306B
NC
S3
D3
D1
S1
IN1
GND
1
2
3
4
5
6
7
Plastic DIP
Top View
14 V+
13 S4
12 D4
11 D2
10 S2
9 IN2
8 V–
TRUTH TABLE
Logic
Switch
0 OFF
1 ON
Logic “0” v 3.5 V
Logic “1” w 11 V
Document Number: 71403
S-51204—Rev. B, 27-Jun-05
www.vishay.com
1






DG304B Datasheet, Funktion
DG304B/306B/307B
Vishay Siliconix
TEST CIRCUITS
VS1 = 3 V
VS2 = 3 V
+15 V
V+
S1 D1
VO1
S2 D2 VO2
IN
GND
V–
–15 V
RL2
300 W
CL2
33 pF
RL1
300 W
CL1
33 pF
CL (includes fixture and stray capacitance)
Logic
Input
0V
Logic “1” = Switch On
VINH
50%
VS1
Switch
Output
0V
VO1
50%
VS2
Switch
Output
VO2 50%
0V
tBBM
FIGURE 3. Break-Before-Make SPDT (DG307B)
+15 V
V+
Rg S
D
Vg
3V
IN
GND
V–
–15 V
VO
CL
1 nF
FIGURE 4. Charge Injection
DVO
VO
INX
ON
OFF
Q = DVO x CL
ON
APPLICATION HINTSLEERER MERKER
V+
Positive Supply
Voltage
(V)
V–
Negative Supply
Voltage
(V)
GND
Voltage
(V)
VIN
Logic Input
Voltage
VINH(min)/VINL(max)
(V)
15 –15
20 –20
15 0
0
0
0
11/3.5
11/3.5
11/3.5
Notes:
a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.
www.vishay.com
6
VS or VD
Analog Voltage
Range
(V)
–15 to 15
–20 to 20
0 to 15
Document Number: 71403
S-51204—Rev. B, 27-Jun-05

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