Vishay Siliconix
DG201B, DG202B
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
Improved Quad CMOS Analog Switches
FEATURES
• ± 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
BENEFITS
•
Wide analog signal range
• Simple logic interface
• Higher accuracy
• Minimum transients
• Reduced power consumption
• Superior to DG201A, DG202
• Space savings (TSSOP)
APPLICATIONS
•
Industrial instrumentation
• Test equipment
• Communications systems
• Disk drives
• Computer peripherals
• Portable instruments
• Sample-and-hold circuits
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.)
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Logic “0” 0.8 V
Logic “1” 2.4 V
* Pb containing terminations are not RoHS compliant, exemptions may apply
IN
1
IN
2
D
1
D
2
S
1
S
2
V- V+
GND NC
S
4
S
3
D
4
D
3
IN
4
IN
3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Top View
DG201B
Dual-In-Line, SOIC and TSSOP
TRUTH TABLE
Logic DG201B DG202B
0 ON OFF
1OFFON
Available
Pb-free
RoHS*
COMPLIANT
