• NVE

Product Features

  • Industry-standard Isolated RS-485/RS-422 transceiver
  • 1ns pulse skew
  • Low EMC footprint
  • Isolation of 2.5 kVRMS
  • Working voltage of 600VRMS
  • Thermal shutdown protection
  • UL 1577 approved; VDE V 0884-10 certified, meets or exceeds ANSI 422-B, EIA 485-A and ITU recommended V11
  • 0.3″ 16-pin SOIC package
  • UL


  • Scientific Instrumentation
  • Test and Measurement
  • Compliant


The IL422E isolated RS-485/RS422 interface from NVE is an industry-standard differential bus transciever, designed to galvanically isolate bidirectional data communication over balanced transmission lines. The IL422 series is also compatible with 3V and 5V input supplies. The device uses NVE’s patented IsoLoop spintronic Giant
Magnetoresistance (GMR) technology and comes in a 0.3″ 16-pin SOIC
IL422 was the first isolated RS-422 transciever in a standard 16-pin SOIC package to meed the ANSI Standards EIA/TIA-422-B and RS-485.

  • Industry-standard, surface-mount RS-485/RS422 isolated transceiver
  • Power supply VDD1 3.3V to 5V, VDD2 4.5V to 5.5V
  • Data rate of 25Mbps
  • 1ns typical pulse skew
  • Isolation voltage of 2.5kVRMS per VDE V 0884-10
  • Working voltage of 600VRMS per VDE V 0884-10
  • Temperature range of −40°C to +85°C
  • PROFIBUS compatible
  • Low EMC Footprint
  • ±60mA Driver output capability
  • Thermal shutdown protection
  • Typical propagation delay of 24ns (5V)
  • UL 1577 approved, VDE V 0884-10 certified, meets or exceeds ANSI 422-B, EIA 485-A and ITU recommended V11
  • 0.3″ 16-pin SOIC package

The IL422 series has current limiting and thermal shutdown features to protect against output short circuits and bus contentions that may cause excessive power dissipation.

Typical applications for the IL422 series include:

  • Multi-point or multi-drop transmission on long bus lines in noisy environments

The below table gives the recommended operating conditions for the NVE IL422E isolated RS485/RS422 transciever:

NVE IL422E 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 IL422 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 IL422 Industry standard RS-422/RS-485 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

Work out what you need for your project. Go to calculators and convertors

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.