Maxim Integrated

MAX3491EESD+T

Drivers, Receivers, Transceivers

Manufacturer
MPN
MAX3491EESD+T
Package / Case
SO-14
Key Attributes
3.3V-Powered, ±15kV ESD-Protected, Slew-Rate-Limited True RS-485/RS-422 Transceivers

Technical Specifications

TypeDescription
Working Voltage V3.3 V
Data Rate10000000
Iq A0.001 A
ESD Protect+/-15kV
Communication ModeFull-Duplex
Number of Drivers1
TypeDescription
Number of Receivers1
TypeTransceiver
Operating Temp-40°C ~ +85°C
FeaturesEnable shutdown;Thermal shutdown protection;Low-power mode
Package / CaseSO-14

Product Introduction

Devices in the MAX3483E family (MAX3483E/MAX3485E/ MAX3486E/MAX3488E/MAX3490E/MAX3491E) are ±15kV ESD-protected, +3.3V, low-power transceivers for RS-485 and RS-422 communications. Each device contains one driver and one receiver. The MAX3483E and MAX3488E feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486E transmits up to 2.5Mbps. The MAX3485E, MAX3490E, and MAX3491E transmit at up to 12Mbps.

All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 AirGap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model.

Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit.

The MAX3488E, MAX3490E, and MAX3491E feature full-duplex communication, while the MAX3483E, MAX3485E, and MAX3486E are designed for halfduplex communication.

Features

  • ESD Protection for RS-485 I/O Pins ±15kV—Human Body Model ±8kV—IEC 1000-4-2, Contact Discharge ±15kV—IEC 1000-4-2, Air-Gap Discharge
  • Operate from a Single +3.3V Supply— No Charge Pump Required
  • Interoperable with ±5V Logic
  • Guaranteed 12Mbps Data Rate (MAX3485E/MAX3490E/MAX3491E)
  • Slew-Rate Limited for Errorless Data Transmission (MAX3483E/MAX3488E)
  • 2nA Low-Current Shutdown Mode (MAX3483E/MAX3485E/MAX3486E/MAX3491E)
  • 7V to +12V Common-Mode Input Voltage Range
  • Full-Duplex and Half-Duplex Versions Available
  • Industry-Standard 75176 Pinout (MAX3483E/MAX3485E/MAX3486E)
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection

Applications

  • - Telecommunications - Industrial-Control Local Area Networks - Transceivers for EMI-Sensitive Applications - Integrated Services Digital Networks - Packet Switching

Datasheet

📄 Open Download

Alternative Parts

Common MAX3491EESD+T alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

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