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+5.0V, ±30kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceiver

RS-485 Transceiver with High ±30kV ESD Protection for Robust System Performance

Product Details

Key Features

Parametric specs for RS-485/RS-422 Line Driver/Receivers
# Tx/Rx 1Tx + 1Rx
Duplex Half
VSUPPLY (V) 5
Data Rate (kbps) (min) 500
ICC (mA) (typ) 1.2
ESD Protect. (±kV) 30
Tx EN Yes
Rx EN Yes
ICC (Shutdn.) (µA) (typ) 2.8
Oper. Temp. (°C) -40 to +85
-40 to +125
0 to +70
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
1.84
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Simplified Block Diagram

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Parameters

Parametric specs for RS-485/RS-422 Line Driver/Receivers
# Tx/Rx 1Tx + 1Rx
Duplex Half
VSUPPLY (V) 5
Data Rate (kbps) (min) 500
ICC (mA) (typ) 1.2
ESD Protect. (±kV) 30
Tx EN Yes
Rx EN Yes
ICC (Shutdn.) (µA) (typ) 2.8
Oper. Temp. (°C) -40 to +85
-40 to +125
0 to +70
Package/Pins PDIP/8
SOIC (N)/8
Budgetary
Price (See Notes)
1.84

Key Features

  • Integrated Protection Increases Robustness
    • ±30kV HBM ESD per JEDEC JS-001-2012
    • ±12kV Contact ESD per IEC 61000-4-2
    • ±15kV Air Gap ESD per IEC 61000-4-2
    • True Fail-Safe Receiver Prevents False Transitions on Receiver Input Short or Open
    • Hot Swap Eliminates False Transitions During Power-Up or Hot Insertion
    • Short-Circuit Protected Outputs Low Current Reduces Power Consumption
  • Low Current Reduces Power Consumption
    • 10µA Shutdown Current
    • 1.2mA of Supply Current When Unloaded

Applications/Uses

  • Industrial Control
  • Instrumentation
  • Lighting Systems
  • PROFIBUS
  • Security Systems
  • Telecom
  • Utility Meters

Description

The MAX14780E is a +5V, ±30kV HBM ESD half duplex RS-485/422 transceiver.

The MAX14780E features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 500kbps.

The MAX14780E is available in an 8-pin SO and PDIP packages operating over a temperature range from -40°C to +85°C.

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Simplified Block Diagram

MAX14780E: Typical Operating Circuit MAX14780E: 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 .