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3.3V, High-Speed, RS-485/RS-422 Transceiver in SOT Package

Product Details

The MAX3362 low-power, high-speed transceiver for RS-485/RS-422 communication operates from a single +3.3V power supply. The device contains one differential transceiver consisting of a line driver and receiver. The transceiver operates at data rates up to 20Mbps, with an output skew of less than 6ns. Driver and receiver propagation delays are guaranteed below 50ns. This fast switching and low skew make the MAX3362 ideal for multidrop clock/data distribution applications.

The output level is guaranteed at +1.5V with a standard 54Ω load, compliant with RS-485 specifications. The transceiver draws 1.7mA supply current when unloaded or fully loaded with the drivers disabled. Additionally, the MAX3362 has a low-power shutdown mode, reducing the supply current to 1µA.

The MAX3362 has a 1/8-unit-load receiver input impedance, allowing up to 256 transceivers on the bus. The MAX3362 is designed for half-duplex communication. The device has a hot-swap feature that eliminates false transitions on the data cable during circuit initialization. The drivers are short-circuit current limited, and a thermal shutdown circuit protects against excessive power dissipation.

The MAX3362 is available in an 8-pin SOT package and specified over industrial and automotive temperature ranges.

Key Features

  • Ideal for Multidrop RS-485/RS-422 Clock/ Data Distribution
    • Guaranteed 20Mbps Data Rate
    • 6ns (max) Transmitter and Receiver Skew
    • -7V to +12V Common-Mode Range
    • Hot-Swap Feature
    • Allows Up to 256 Transceivers on the Bus
    • Half-Duplex Operation
    • Interoperable with +5V Logic
  • Low Power Consumption Minimizes Thermal Dissipation
    • Operates from a Single +3.3V Supply
    • 1.7mA Operating Supply Current
    • 1µA Low-Power Shutdown Mode
  • Space-Saving 8-Pin SOT Package
  • Protection Features and Wide Temperature Range Increase System Reliability in Harsh Environments
    • Current Limiting and Thermal Shutdown
    • Automotive Temperature Range Variants

Applications/Uses

  • Clock/Data Distribution
  • Industrial Controls
  • Point-of-Sale Equipment
  • Security Equipment
  • Telecom Equipment
Parametric specs for RS-485/RS-422 Transceivers (RS485, RS422 TxRx)
# Tx/Rx 1Tx + 1Rx
Duplex Half
VSUPPLY (V) 3.3
Data Rate (kbps) (min) 20000
ICC (mA) (typ) 1.7
Tx EN Yes
Rx EN Yes
ICC (Shutdn.) (µA) (typ) 1
Oper. Temp. (°C) -40 to +85
-40 to +125
Package/Pins SOIC (N)/8
SOT23/8
Budgetary
Price (See Notes)
$2.68 @1k
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Simplified Block Diagram

MAX3362: Typical Operating Circuit MAX3362: Typical Operating Circuit Zoom icon

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Parameters

Parametric specs for RS-485/RS-422 Transceivers (RS485, RS422 TxRx)
# Tx/Rx 1Tx + 1Rx
Duplex Half
VSUPPLY (V) 3.3
Data Rate (kbps) (min) 20000
ICC (mA) (typ) 1.7
Tx EN Yes
Rx EN Yes
ICC (Shutdn.) (µA) (typ) 1
Oper. Temp. (°C) -40 to +85
-40 to +125
Package/Pins SOIC (N)/8
SOT23/8
Budgetary
Price (See Notes)
$2.68 @1k

Key Features

  • Ideal for Multidrop RS-485/RS-422 Clock/ Data Distribution
    • Guaranteed 20Mbps Data Rate
    • 6ns (max) Transmitter and Receiver Skew
    • -7V to +12V Common-Mode Range
    • Hot-Swap Feature
    • Allows Up to 256 Transceivers on the Bus
    • Half-Duplex Operation
    • Interoperable with +5V Logic
  • Low Power Consumption Minimizes Thermal Dissipation
    • Operates from a Single +3.3V Supply
    • 1.7mA Operating Supply Current
    • 1µA Low-Power Shutdown Mode
  • Space-Saving 8-Pin SOT Package
  • Protection Features and Wide Temperature Range Increase System Reliability in Harsh Environments
    • Current Limiting and Thermal Shutdown
    • Automotive Temperature Range Variants

Applications/Uses

  • Clock/Data Distribution
  • Industrial Controls
  • Point-of-Sale Equipment
  • Security Equipment
  • Telecom Equipment

Description

The MAX3362 low-power, high-speed transceiver for RS-485/RS-422 communication operates from a single +3.3V power supply. The device contains one differential transceiver consisting of a line driver and receiver. The transceiver operates at data rates up to 20Mbps, with an output skew of less than 6ns. Driver and receiver propagation delays are guaranteed below 50ns. This fast switching and low skew make the MAX3362 ideal for multidrop clock/data distribution applications.

The output level is guaranteed at +1.5V with a standard 54Ω load, compliant with RS-485 specifications. The transceiver draws 1.7mA supply current when unloaded or fully loaded with the drivers disabled. Additionally, the MAX3362 has a low-power shutdown mode, reducing the supply current to 1µA.

The MAX3362 has a 1/8-unit-load receiver input impedance, allowing up to 256 transceivers on the bus. The MAX3362 is designed for half-duplex communication. The device has a hot-swap feature that eliminates false transitions on the data cable during circuit initialization. The drivers are short-circuit current limited, and a thermal shutdown circuit protects against excessive power dissipation.

The MAX3362 is available in an 8-pin SOT package and specified over industrial and automotive temperature ranges.

Simplified Block Diagram

MAX3362: Typical Operating Circuit MAX3362: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.