MAX3483AE

+3.3V-Powered, ±20kV ESD-Protected, 20Mbps and Slew-Rate-Limited RS-485/RS-422 Transceivers

High ESD protection increases robustness and reliability of industrial end equipment


Description

Devices in the MAX3483AE family (MAX3483AE/MAX3485AE/MAX3488AE/MAX3490AE/MAX3491AE) are ±20kV ESD-protected RS-485/422 transceivers, optimized for extended cable runs in noisy environments. All devices operate from a single 3.3V supply.

The MAX3483AE and MAX3485AE are half-duplex transceivers. The MAX3488AE, MAX3490AE, and MAX3491AE are full-duplex transceivers. All receivers feature a unit-load input impedance, allowing up to 32 devices on a single bus. Each transceiver includes a fail-safe receiver, ensuring that the receiver output (RO) is high when inputs are shorted, open, or connected to a tri-state bus. All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±20kV HBM ESD, ±15kV Air-Gap ESD and ± 8kV Contact ESD in accordance to IEC 61000-4-2.

The MAX3483AE, MAX3485AE, MAX3488AE, and MAX3490AE are available in industry standard 8-pin SO package, while the MAX3491AE is available in a 14-pin SO package.

MAX3483AE, MAX3485AE, MAX3488AE, MAX3490AE, MAX3491AE: Functional Diagram MAX3483AE, MAX3485AE, MAX3488AE, MAX3490AE, MAX3491AE: Functional Diagram Enlarge+

Key Features

  • Integrated Protection Increases Robustness
    • High ESD Protection
      • ±20kV HBM ESD per JEDEC JS-001-2012
      • ±15kV Air Gap per IEC 61000-4-2
      • ±8kV Contact ESD per IEC 61000-4-2
    • Short-Circuit Protected Outputs
    • True Fail-Safe Receiver Prevents False Transition on Receiver Input Short or Open Events
    • Hot-Swap Capability Eliminates False Transitions During Power-Up or Hot Insertion
  • High-Speed Data Rates up to 20Mbps
  • Up to -40°C to +125°C Operating Temperature
  • Allows Up to 128 Transceivers on the Bus

Applications/Uses

  • Industrial-Control Local Area Networks
  • Telecommuncations
  • Transceivers for EMI-Sensitive Applications
Part Number Tx/Rx Duplex VSUPPLY
(V)
ICC
(mA)
Data Rate
(kbps)
ESD Protect.
(±kV)
Tx EN Rx EN Rx/Tx on Bus Rx Failsafe w/ Inputs Slew Rate Limiting Oper. Temp.
(°C)
Package/Pins Budgetary
Price
typ min See Notes
MAX3483AE  1Tx + 1Rx Half 3.3 1.9 250 20 Yes Yes 32 Open or Shorted No -40 to +125
SOIC(N)/8
$1.98 @1k
MAX3485AE  Half 20000 Yes Yes 32 -40 to +125
SOIC(N)/8
$2.03 @1k
MAX3488AE  Full 250 No No 128 -40 to +125
SOIC(N)/8
$2.08 @1k
MAX3490AE  Full 20000 No No 128 -40 to +105
SOIC(N)/8
$2.13 @1k
MAX3491AE  Full 20000 Yes Yes 128 -40 to +125
SOIC(N)/14
$2.18 @1k
See All RS-485/RS-422 Line Driver/Receivers (199)
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.

Quality and Environmental Data

Request Reliability Report for: MAX3483AE 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

MAX3483AE IBIS Model

Related Resources


MAX14775E
±65V Fault Protected 500Kbps/20Mbps Half-Duplex RS-485/RS-422 Transceivers

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

MAX14776E
±65V Fault Protected 500Kbps/20Mbps Half-Duplex RS-485/RS-422 Transceivers

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

MAX7037
Sub-1GHz Ultra-Low-Power RF ISM Transceiver

  • Ultra-Low-Power Consumption for Battery-Based Operation
  • Worldwide Usable Frequency Band Coverage
  • Fractional-N LO Generation For Multichannel Operation

MAX14858
5kVRMS Isolated 500kbps/25Mbps Full-Duplex RS-485/RS-422 Transceivers with ±35kV ESD Protection

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

MAX14856
5kVRMS Isolated 500kbps/25Mbps Full-Duplex RS-485/RS-422 Transceivers with ±35kV ESD Protection

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

MAX14852
2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex RS-485/RS-422 Transceivers with ±35kV ESD Protection

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

MAX14854
2.75kVRMS Isolated 500kbps/25Mbps Full-Duplex RS-485/RS-422 Transceivers with ±35kV ESD Protection

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