日本語 中文
Products >
Applications >
Design >
Support >
Order >
About Us >
Maxim
›
Products
›
Interface
›
›
MAX14841E

MAX14841E

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

Low-Voltage, High-Speed RS-485 Transceivers Increase Data Rates and Extend Cable Lengths 

Download Data Sheet
Subscribe

Please check latest availability status for a specific part variant.

Overview

Description

The MAX14840E/MAX14841E are +3.3V ESD-protected transceivers intended for half-duplex RS-485 communication up to 40Mbps. These transceivers are optimized for high speeds over extended cable runs while maximizing tolerance to noise.

The MAX14840E features symmetrical fail-safe and larger 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.

The MAX14840E/MAX14841E are available in 8-pin SO and small, 8-pin (3mm x 3mm) TDFN-EP packages. Both devices operate over the -40°C to +125°C automotive temperature range.
MAX14840E, MAX14841E: Functional Diagram MAX14840E, MAX14841E: Functional Diagram Enlarge+

Key Features

  • High ESD Protection Provides Increases Equipment 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
  • 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
  • Low Current Reduces Power Requirements
    • 10µA (max) Shutdown Current
    • 1.5mA (typ) Supply Current
    • 3.3V Supply Voltage
  • Available in Industry Standard 8-Pin SO or Space-Saving 8-Pin TDFN-EP (3mm x 3mm) Packages

Applications/Uses

  • Backplane Buses
  • Fieldbus Networks
  • HVAC Networks
  • Industrial Control Systems
  • Motion Controllers

Parametric Specs

See parametric specs for RS-485/RS-422 Line Driver/Receivers (208)


Part NumberTx/RxDuplexVSUPPLY
(V)		ICC
(mA)		Data Rate
(kbps)		ESD Protect.
(±kV)		Tx ENRx ENICC (Shutdn.)
(µA)		Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)		Package/PinsBudgetary
Price
typmintypSee Notes
MAX14840E 1Tx + 1RxHalf3.31.54000035YesYes1032OpenNo-40 to +125
SOIC (N)/8
TDFN/8
$2.21 @1k
MAX14841E Open or Shorted-
SOIC (N)/8
TDFN/8

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Design Resources


MAX14840PMB1: MAX14840PMB1 Peripheral Module
MAXPMBAE: Maxim Analog Essentials Collection of Peripheral Modules

Technical Documents

Tutorial 4697 Overview of Industrial Motor Control Systems

Quality And Environmental

Product Reliability Reports: MAX14841E.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

Order

 
Status:
Package:
Temperature:

Related Resources

New Products


MAX33073E
+3V to +5.5V, Polarity Invert RS-485 Half-Duplex Transceiver with ±65V Fault Protection, ±40V CMR, and ±40kV ESD

  • Integrated Protection for Robust Communication
  • High-Performance Transceiver Enables Flexible Designs

MAX33072E
+3V to +5.5V, Polarity Invert RS-485 Half-Duplex Transceiver with ±65V Fault Protection, ±40V CMR, and ±40kV ESD

  • Integrated Protection for Robust Communication
  • High-Performance Transceiver Enables Flexible Designs

MAX22088
Home Bus System (HBS) Compatible Transceiver

  • High Integration Reduces BOM and Footprint
  • Configurability Enables Flexible Design
  • Integrated Protection for Robust Communication

MAX14829
Low Power IO-Link Device Transceiver with Dual Drivers

  • Low Power Dissipation Reduces the Thermal Footprint for Small Sensors
  • High Configurability and Integration Reduce SKUs
  • Selectable Driver Integrated Protection Enables Robust Communication

MAX33011E
+5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

  • Integrated Protection Increases Robustness
  • Family Provides Flexible Design Options
  • Fault Detection and Reporting

MAX33014E
+5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

  • Integrated Protection Increases Robustness
  • Family Provides Flexible Design Options
  • Fault Detection and Reporting

MAX33012E
+5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

  • Integrated Protection Increases Robustness
  • Family Provides Flexible Design Options
  • Fault Detection and Reporting

MAX33015E
+5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±40kV ESD Protection

  • Integrated Protection Increases Robustness
  • Family Provides Flexible Design Options
  • Fault Detection and Reporting

MAX22028
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22027F
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22028F
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22025F
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22026
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22027
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22026F
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22025, MAX22025F
Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with AutoDirection Control

  • High-Level Integration Reduces Overall Solution Size
  • Integrated Protection Ensures Robust Communication
  • Enables Flexible System Design

MAX22520
One-Time Programmable (OTP) Industrial Sensor Output Driver

  • High Configurability Supports a Wide Range of Sensor Designs
  • Robust Design for Harsh Industrial Environments
  • Small Form Factor for Compact Designs

Technical Docs

Type ID Title
Tutorial 4697 Overview of Industrial Motor Control Systems

Reference Designs

Type ID Title
Evaluation Board7752MAX14840PMB1 MAX14840PMB1 Peripheral Module
Evaluation Board7732MAXPMBAE Maxim Analog Essentials Collection of Peripheral Modules