DG201B, DG202B
Vishay Siliconix
Improved Quad CMOS Analog Switches
DESCRIPTION
FEATURES
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•
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•
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22 V supply voltage rating
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.
Pb-free
TTL and CMOS compatible logic
Low on-resistance - RDS(on): 45
Low leakage - ID(on): 20 pA
Single supply operation possible
Extended temperature range
Fast switching - tON: 120 ns
Available
RoHS*
COMPLIANT
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.
Low glitching - Q: 1 pC
Compliant to RoHS Directive 2002/95/EC
BENEFITS
• Wide analog signal range
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Simple logic interface
Higher accuracy
Minimum transients
Reduced power consumption
Superior to DG201A, DG202
All devices feature true bi-directional performance in the on
condition, and will block signals to the supply voltages in the
off condition.
• Space savings (TSSOP)
The DG201B is a normally closed switch and the DG202B is
a normally open switch. (see Truth Table.)
APPLICATIONS
• Industrial instrumentation
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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
D
IN
2
1
1
1
1
16
15
14
13
12
11
10
9
D
S
2
2
3
TRUTH TABLE
S
2
Logic
DG201B
ON
DG202B
V-
V+
4
5
6
7
8
0
1
OFF
ON
OFF
GND
NC
Logic “0” 0.8 V
Logic “1” 2.4 V
S
D
S
3
4
4
4
D
3
IN
IN
3
Top View
* 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