• NVE

Product Features

  • High speed passive input RS-485 isolated transceiver
  • Bus ESD protection 15kV
  • Typical common mode rejection of 20 kV/µs
  • Isolation of 2.5 kVRMS(1 minute)
  • No carrier or clock for low EMI emissions and susceptibility
  • Thermal shutdown protection
  • UL 1577 recognized; IEC 60747-5-5 (VDE 0884) certified
  • 0.3″ 16-pin SOIC package


  • Scientific Instrumentation
  • Test and Measurement
  • Compliant


The IL3285E fractional load passive input RS-485 isolated transceiver from NVE is designed to galvanically isolate bidirectional data communication over balanced transmission lines. The IL3285 series delivers at least 1.5V into a 54Ω load for excellent data integrity over long cables, and is also compatible with 3V input supplies, allowing interfacing to standard microcontrollers without additional level shifting. A unique ceramic/polymer composite barrier provides excellent isolation and virtually unlimited barrier life. This particular device uses NVE’s patented IsoLoop spintronic Giant Magnetoresistance (GMR) technology and comes in a 0.3″ 16-pin SOIC package.

  • Surface-mount fractional load passive input RS-485 isolated transceiver
  • Power supply VDD1 3.3V to 5V, VDD2 4.5V to 5.5V
  • Data rate of 5Mbps
  • Bus ESD protection of 15kV
  • Isolation of 2,500 VRMS (1 minute)
  • Temperature range of −40°C to +85°C
  • Typical common mode rejection 20kV/μs
  • No carrier or clock for low EMI emissions and susceptibility
  • Thermal shutdown protection
  • Typical propagation delay of 90ns (5V)
  • Receiver input resistance of 96Ω
  • UL 1577 recognised; IEC 60747-5-5 (VDE 0884) certified
  • 0.3″ 16-pin SOIC package

The IL3285E has current limiting and thermal shutdown features to protect against output short circuits and bus contentions that may cause excessive power dissipation, and also incorporate a “fail-safe if open” design, ensuring a logic high on R if the bus lines are disconnected or “floating.”

Typical applications for the IL3285 series include:

  • High node-count networks
  • Security networks
  • Building environmental controls
  • Industrial control networks
  • Gaming systems

The below table gives the recommended operating conditions for the NVE IL3285 high speed passive input RS-485 differential bus transceiver series including the IL3285E:

NVE IL3285E Specifications


Weight 0.02500 kg
Dimensions 2.50 x 10.49 x 7.59mm
Series / Model

Temperature Range (°C)

Supply Voltage


Maximum Data Rate

Propagation Delay

Creepage Distance

NVE IL32 Series Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:



NVE IL3285 & IL3222 Fractional load passive isolated transceivers series datasheet
Isolated logic level shifters
Isolated RS485 and RS422
Making RS485 system work
Package, tape-and-reel and pad layout specifications
GMR in isolation
Isolator high voltage safety standards
Isolated data converter
Power supply bypass capacitor selection
Pb free and S-Pb solder profiles
IsoLoop isolators for high efficiency power control
Isoloop isolators have low emissions, low emissions, low EMI susceptibility and excellent magnetic immunity
Isolating data converters
Isolated I S minimises distortion
IsoLoop isolators have best in class endurance voltage
Profibus complianc, a hardware design guide
Isolated CAN reference design
IsoLoop isolators have best-in-Class transient immunity
NVE isolators feature eight millimeter creepage
Isoloop isolators enable next generation switching mode power suppliers
Isoloop isolators have excellent thermal characteristics
Glossary terms


Calculators and Converters

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Contact us if you need your items quicker or need more than in stock.

Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.