DG508B中文資料威世科技數(shù)據(jù)手冊PDF規(guī)格書

FEATURES

? Operate with single or dual power supply

? V+ to V- analog signal swing range

? 44 V power supply maximum rating

? Extended operate temperature range:

-40 °C to +125 °C

? Low leakage typically < 3 pA

? Low charge injection - QINJ = 2 pC

? Low power - ISUPPLY: 10 μA

? TTL compatible logic

? > 250 mA latch-up current per JESD78

? Available in SOIC16, TSSOP16, PDIP, and miniQFN16

packages

? Superior alternative to:

- ADG508A, DG508A, HI-508

- ADG509A, DG509A, HI-509

? Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

BENEFITS

? Reduced switching errors

? Reduced glitching

? Improved data throughput

? Reduced power consumption

? Increased ruggedness

? Wide supply ranges (± 5 V to ± 20 V)

APPLICATIONS

? Data acquisition systems

? Audio and video signal routing

? ATE systems

? Medical instrumentation

DESCRIPTION

The DG508B is an 8-channel single-ended analog

multiplexer designed to connect one of eight inputs to a

common output as determined by a 3-bit binary address

(A0, A1, A2). The DG509B is a dual 4-channel differential

analog multiplexer designed to connect one of four

differential inputs to a common dual output as determined

by its 2-bit binary address (A0, A1). Break-before-make

switching action protects against momentary crosstalk

between adjacent channels.

An on channel conducts current equally well in both

directions. In the off state each channel blocks voltages up

to the power supply rails. An enable (EN) function allows the

user to reset the multiplexer / demultiplexer to all switches

off for stacking several devices. All control inputs,

addresses (AX) and enable (EN) are TTL compatible over the

full specified operating temperature range.

The DG508B and DG509B are fabricated on an enhanced

SG-II CMOS process that achieves improved performance

on: reduced charge injection, lower device leakage, and

minimized parasitic capacitance.

As the DG508, DG509 has a long history in the industry with

many suppliers offering copies - and in some cases

improved variations - with the best in class improvements,

the Vishay Siliconix new version of the DG508B, DG509B

are the superior alternatives to what is currently available.

Applications for the DG508B, DG509B include high speed

and high precision data acquisition, audio signal switching

and routing, ATE systems, and avionics. High performance

and low power dissipation make them ideal for battery

operated and remote instrumentation applications.

The DG508B and DG509B have the absolute maximum

voltage rating extended to 44 V. Additionally, single supply

operation is also allowed. An epitaxial layer prevents

latch-up.

The DG508B and DG509B are both available in 16-lead

SOIC, TSSOP, PDIP, and miniQFN (1.8 mm x 2.6 mm)

package options with extended temperature range of -40 °C

to +125 °C.

For more information, refer to Vishay Siliconix DG508B,

DG509B evaluation board note.