ISO1176T RF-485 Transceiver

Texas Instruments' isolated Profibus® transceiver with an integrated transformer driver

ISO1176T RF-485 TransceiverTexas Instruments' ISO1176T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is ideal for long transmission lines because the ground loop is broken to allow the device to operate with a much larger common-mode voltage range. The symmetrical isolation barrier of each device is tested to provide 2500 Vrms of isolation between the line transceiver and the logic-level interface. The galvanically isolated differential bus transceiver is an integrated circuit designed for bi-directional data communication on multipoint bus-transmission lines. The transceiver combines a galvanically isolated differential line driver and differential input line receiver.

Features Applications
  • 4000 Vpeak isolation, 560 Vpeak VIORM
  • Meets or exceeds the requirements of EN 50170 and TIA/EIA RS-485
  • Signaling rates up to 40 Mbps
  • Differential output exceeds 2.1 V (54 Ω load)
  • Low bus capacitance 10 pF (maximum)
  • 50 kV/µs typical transient immunity
  • UL 1577, IEC 60747-5-2 (VDE 0884, Rev. 2) approvals pending
  • Fail-safe receiver for bus open, short, or idle
  • Profibus®
  • Factory automation
  • Networked sensors
  • Motor/motion control
  • HVAC and building automation networks
  • Networked security stations


ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
ISO1176TDW datasheet linkDG ISO 2.5KV RS422/RS485 16SOICISO1176TDWDG ISO 2.5KV RS422/RS485 16SOIC919 - Immediate
ISO1176TDW product page link
Published: 2012-06-29