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DG202BDQ Schematic ( PDF Datasheet ) - Vishay Siliconix

Teilenummer DG202BDQ
Beschreibung Improved Quad CMOS Analog Switches
Hersteller Vishay Siliconix
Logo Vishay Siliconix Logo 




Gesamt 9 Seiten
DG202BDQ Datasheet, Funktion
DG201B/202B
Vishay Siliconix
Improved Quad CMOS Analog Switches
FEATURES
D "22-V Supply Voltage Rating
D TTL and 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: 120 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 DG201A/202
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 DG201B/202B analog switches are highly improved
versions of the industry-standard DG201A/202. 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 DG201B and DG202B can handle
up to "22-V input signals, and have an improved continuous
current rating of 30 mA. An epitaxial layer prevents latchup.
All devices feature true bi-directional performance in the on
condition, and will block signals to the supply voltages in the
off condition.
The DG201B is a normally closed switch and the DG202B is
a normally open switch. (See Truth Table.)
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG201B
Dual-In-Line, SOIC and TSSOP
IN1 1
D1 2
S1 3
V– 4
GND 5
S4 6
D4 7
IN4 8
Top View
16 IN2
15 D2
14 S2
13 V+
12 NC
11 S3
10 D3
9 IN3
TRUTH TABLE
Logic
DG201B
DG202B
0 ON OFF
1
OFF
ON
Logic “0” v 0.8 V
Logic “1” w 2.4 V
Document Number: 70037
S-52433—Rev. G, 06-Sep-99
www.vishay.com S FaxBack 408-970-5600
4-1






DG202BDQ Datasheet, Funktion
DG201B/202B
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Switching Time vs. Single Supply Voltage
500
V– = 0 V
400
Switching Time vs. Power Supply Voltage
400
300
300
200
ton
100
toff
0
2 4 6 8 10 12 14 16 18 20
V+ – Positive Supply (V)
200
ton
100
toff
0
0 "4 "8 "12 "16 "20
V+, V– Positive and Negative Supplies (V)
QS, QD – Charge Injection vs. Analog Voltage
30
20
10
V+ = 15 V
0 V– = –15 V
–10
V+ = 12 V
V– = 0 V
–20
–30
–15
–10 –5
0
5 10
VANALOG – Analog Voltage (V)
15
120
110
100
90
80
70
60
50
40
10 k
Off Isolation vs. Frequency
V+ = 15 V
V– = –15 V
RL = 50 W
100 k
1M
f – Frequency (Hz)
10 M
Supply Current vs. Switching Frequency
4
3
2
1
www.vishay.com S FaxBack 408-970-5600
4-6
0
1k
10 k 100 k
f – Frequency (Hz)
1M
Document Number: 70037
S-52433—Rev. G, 06-Sep-99

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