Maxim Integrated

MAX3490ESA+T

Interface ICs

Manufacturer
MPN
MAX3490ESA+T
Package / Case
SOIC-8
Key Attributes
3.3V-Powered, Slew-Rate-Limited True RS-485/RS-422 Transceivers

Technical Specifications

TypeDescription
Data Rate10 Mbps
Quiescent Current2.2 mA
Nodes32
Communication ModeFull-Duplex
Number of Drivers1
Number of Receivers1
TypeDescription
Supply Voltage3V~3.6V
TypeTransceiver
Operating Temperature-40°C~+85°C
FeaturesOvercurrent Protection;Thermal shutdown protection
Package / CaseSOIC-8

Product Introduction

The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 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 MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps.

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 MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.

Features

  • Operate from a Single 3.3V Supply— No Charge Pump!
  • Interoperable with +5V Logic
  • 8ns Max Skew (MAX3485/MAX3490/MAX3491)
  • Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
  • 2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
  • 7V to +12V Common-Mode Input Voltage Range
  • Allows up to 32 Transceivers on the Bus
  • Full-Duplex and Half-Duplex Versions Available
  • Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection

Applications

  • Low-Power RS-485/RS-422 Transceivers
  • Telecommunications
  • Transceivers for EMI-Sensitive Applications
  • Industrial-Control Local Area Networks

Datasheet

📄 Open Download

Alternative Parts

Common MAX3490ESA+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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