Datasheet > MAX14840E

MAX14840E

更新时间： 2024-11-30 14:57:55

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	990K
描述
40Mbps、+3.3V、RS-485半双工收发器

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中文翻译

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MAX14840E 数据手册

MAX14840E/MAX14841E 40Mbps, +3.3V, RS-485 Half-Duplex Transceivers

General Description

Beneﬁts and Features

● High ESD Protection Provides Increases Equipment

The MAX14840E/MAX14841E are +3.3V ESD-protected

transceivers intended for half-duplex RS-485 communica-

tion up to 40Mbps. These transceivers are optimized for

high speeds over extended cable runs while maximizing

tolerance to noise.

Uptime

• ±35kV Human Body Model (HBM) per JEDEC

JS-001-2012

• ±20kV Air Gap Discharge per IEC 61000-4-2

• ±12kV Contact Discharge per IEC 61000-4-2

The MAX14840E features symmetrical fail-safe and larg-

er receiver hysteresis, providing improved noise rejection

and improved recovered signals in high-speed and long

cable applications. The MAX14841E has true fail-safe

receiver inputs guaranteeing a logic-high receiver output

when inputs are shorted or open.

● Integrated Features Increases Robustness

• Large 170mV Receiver Hysteresis (MAX14840) for

High Receiver Noise Tolerance

• True Fail Safe Receiver Input (MAX14841E) Keeps

Receiver Output Logic-High Upon Shorts and

Open On Receiver Input

• Thermal Self-Protection Shutdown at 160°C

Junction Temperature

• High Industrial -40°C to +125°C Ambient Operating

Temperature Range/-40°C to +150°C Junction

Temperature Range

• Hot Swap Capability Eliminates False Transition

During Power-Up or Hot Insertion

The MAX14840E/MAX14841E are available in 8-pin SO

and small, 8-pin (3mm x 3mm) TDFN-EP packages. Both

devices operate over the -40NC to +125NC temperature

range.

Applications

● Motion Controllers

● Fieldbus Networks

● Industrial Control Systems

● Backplane Buses

● HVAC Networks

● Low Current Reduces Power Requirements

• 10µA (max) Shutdown Current

• 1.5mA (typ) Supply Current

• 3.3V Supply Voltage

Ordering Information/Selector Guide appears at end of data

sheet.

● Available in Industry Standard 8-Pin SO or

Space-Saving 8-Pin TDFN-EP (3mm x 3mm) Packages

Functional Diagram

MAX14840E

MAX14841E

SHUTDOWN

GND

19-5131; Rev 2; 7/15

12 3 4 5 6 7...16

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