DG459

更新时间： 2024-11-08 22:40:35

品牌	Logo	应用领域
威世 - VISHAY		复用器
页数	文件大小	规格书
8页	90K
描述
Fault-Protected Single 8-Ch/Differential 4-Ch Analog Multiplexers

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DG459 数据手册

DG458/459

Vishay Siliconix

Fault-Protected Single 8-Ch/Differential 4-Ch Analog Multiplexers

FEATURES

BENEFITS

APPLICATIONS

D Fault and Overvoltage Protection

D All Channels Off When Power Off

D Latchup-Proof

D Improved Ruggedness

D Power Loss Protection

D Prevents Adjacent Channel Crosstalk

D Standard Logic Interface

D Superior Accuracy

D Data Acquisition Systems

D Industrial Process Control Systems

D Avionics Test Equipment

D High-Rel Control Systems

D Telemetry

D Fast Switching—T_A: 200 ns

D Break-Before-Make Switching

D Low On-Resistance: 180 W

D Low Power Consumption: 3 mW

D TTL and CMOS Compatible Inputs

D Fast Settling Time

DESCRIPTION

The DG458 and DG459 are 8-channel single-ended and

4-channel differential analog multiplexers, respectively,

incorporating fault protection. A series n-p-n MOSFET

structure provides device and signal-source protection in the

event of power loss or overvoltages. Under fault conditions the

multiplexer input (or output) appears as an open circuit and

only a few nanoamperes of leakage current will flow. This

protects not only the multiplexer and the circuitry following it,

but also protects the sensors or signal sources which drive the

multiplexer.

TheDG458andDG459canwithstandcontinuousovervoltage

inputs up to "35 V. All digital inputs have TTL compatible logic

thresholds. Break-before-make operation prevents channel-

to-channel interference.

The DG458 and DG459 are improved pin-compatible

replacements for HI-508A/509A and MAX358/359

multiplexers.

FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION

DG458

DG459

Dual-In-Line

V–

GND

V+

V–

Decoders/Drivers

GND

V+

Top View

Document Number: 70064

S-52433—Rev. F, 06-Sep-99

www.vishay.com S FaxBack 408-970-5600

5-1

12 3 4 5 6 7 8

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