DG201B, DG202B
Vishay Siliconix
Improved Quad CMOS Analog Switches
DESCRIPTION
The DG201B, DG202B analog switches are highly improved
versions of the industry-standard DG201A, DG202. 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.)
FEATURES
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•
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•
•
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± 22 V supply voltage rating
TTL and CMOS compatible logic
Low on-resistance - R
DS(on)
: 45
Low leakage - I
D(on)
: 20 pA
Single supply operation possible
Extended temperature range
Fast switching - t
ON
: 120 ns
Low glitching - Q: 1 pC
Compliant to RoHS Directive 2002/95/EC
Pb-free
Available
RoHS*
COMPLIANT
BENEFITS
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Wide analog signal range
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Simple logic interface
Higher accuracy
Minimum transients
Reduced power consumption
Superior to DG201A, DG202
•
Space savings (TSSOP)
APPLICATIONS
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Industrial instrumentation
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•
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•
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Test equipment
Communications systems
Disk drives
Computer peripherals
Portable instruments
•
Sample-and-hold circuits
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG201B
Dual-In-Line, SOIC and TSSOP
IN
1
D
1
S
1
V-
GND
S
4
D
4
IN
4
IN
2
D
2
S
2
V+
NC
S
3
D
3
IN
3
1
2
3
4
5
6
7
8
Top View
16
15
14
13
12
11
10
9
TRUTH TABLE
Logic
0
1
Logic “0”
0.8
V
Logic “1”
2.4
V
DG201B
ON
OFF
DG202B
OFF
ON
* Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 70037
S11-0800-Rev. J, 25-Apr-11
www.vishay.com
1
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000