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MAX483

MAX483

Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers

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Overview

Description

The MAX481, MAX483, MAX485, MAX487–MAX491, and MAX1487 are low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver.

MAX1487, MAX481, MAX483, MAX485, MAX487, MAX488, MAX489, MAX490, MAX491: Pin Configuration and Typical Operating Circuit MAX1487, MAX481, MAX483, MAX485, MAX487, MAX488, MAX489, MAX490, MAX491: Pin Configuration and Typical Operating Circuit Enlarge+

Key Features

  • Low Power Consumption Minimizes Thermal Dissipation, Reducing System Cost
    • 120µA to 500µA Quiescent Current
    • Shutdown Current of 0.1µA
    • Single 5V Supply Voltage
  • Slew-Rate-Limited Drivers (MAX483/MAX487/MAX488 and MAX489)
    • Up to 250kbps Data Rate
    • Unlimited Drivers: Up to 2.5Mbps Data Rate
  • Integrated Protection Enhances System Robustness
    • Short Circuit Current Limited Driver
    • Integrated Thermal Shutdown
    • Receiver Fail-Safe for Input Open Circuit
    • Guarantees Logic High
  • 1/4 Unit Loading (MAX487/ MAX1487 only) Allows Up to 128 Devices on a Single Bus
    • 48kΩ Receiver Input Resistance

Applications/Uses

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

Parametric Specs

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


Part NumberTx/RxDuplexVSUPPLY
(V)		ICC
(mA)		Data Rate
(kbps)		Tx ENRx ENICC (Shutdn.)
(µA)		Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)		Package/PinsBudgetary
Price
typmintypSee Notes
MAX1487 1Tx + 1RxHalf50.32500YesYes-128OpenNo
-55 to +125
-40 to +85
0 to +70
DICE SALES
PDIP/8
SOIC (N)/8
UMAX/8
$1.62 @1k
MAX481 Half0.52500YesYes0.132
CDIP/8
PDIP/8
SOIC (N)/8
UMAX/8
MAX483 Half0.35250YesYes0.132
CDIP/8
PDIP/8
SOIC (N)/8
UMAX/8
MAX485 Half0.52500YesYes-32
CDIP/8
PDIP/8
SOIC (N)/8
UMAX/8
MAX487 Half0.25250YesYes0.1128
CDIP/8
PDIP/8
SOIC (N)/8
UMAX/8
MAX488 Full0.12250NoNo-32
CDIP/8
PDIP/8
SOIC (N)/8
UMAX/8
MAX489 Full0.12250YesYes-32
CDIP/14
PDIP/14
SOIC (N)/14
MAX490 Full0.32500NoNo-32
CDIP/8
PDIP/8
SOIC (N)/8
UMAX/8
MAX491 Full0.32500YesYes-32
CDIP/14
DICE SALES/N
PDIP/14
SOIC (N)/14

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

Technical Documents

App Note 4562 FAQs about Interface, RS-232, and RS-485 Circuits
App Note 2116 RS-485 Data Interface Gives Isolated, Full-Duplex Operation

Additional Resources

RS-485 Resources

Quality And Environmental

Product Reliability Reports: MAX483.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 >

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Technical Docs