DG202B中文資料威世科技數(shù)據(jù)手冊PDF規(guī)格書

FEATURES

? ± 22 V supply voltage rating

? 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

? 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.)