ISO732x Digital Isolators

Robust EMC, low power, dual-channel 2/0 digital isolator, with low fail-safe from Texas Instruments

Image of Texas Instruments ISO732x Digital IsolatorsTexas Instruments' ISO732x provides galvanic isolation up to 3000 VRMS for 1 minute per UL and 4242 VPK per VDE. These devices have two isolated channels comprised of logic input and output buffers separated by silicon dioxide (SiO2) insulation barriers. The ISO7320 has both channels in the same direction while ISO7321 has the two channels in opposite direction. In case of input power or signal loss, default output is ‘low’ for devices with suffix ‘F’ and ‘high’ for devices without suffix ‘F’. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. 

The ISO732x have integrated noise filters for harsh industrial environment where short noise pulses may be present at the device input pins. They have TTL input thresholds and operate from 3 V to 5.5 V supply levels. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO732x have been significantly enhanced to enable system-level ESD, EFT, surge and emissions compliance.

Features
  • Signaling rate: 25 Mbps
  • Integrated noise filter on the inputs
  • Default output ‘high’ and ‘low’ options
  • Low propagation delay: 33 ns typical (5 V supplies)
  • 3.3 V and 5 V level translation
  • Low power consumption: typical ICC per channel at 1 Mbps:
    • ISO7320: 1.2 mA (5 V supplies), 0.9 mA (3.3 V supplies)
    • ISO7321: 1.7 mA (5 V supplies), 1.2 mA (3.3 V supplies)
  • Wide temperature range: –40°C to 125°C
  • 65 KV/µs transient immunity, typical (5 V supplies)

ISO732x Digital Isolators

ImageManufacturer Part NumberDescriptionAvailable Quantity
DGTL ISO 3000VRMS 2CH GP 8SOICISO7320FCDRDGTL ISO 3000VRMS 2CH GP 8SOIC0View Details
DGTL ISO 3000VRMS 2CH GP 8SOICISO7320FCDDGTL ISO 3000VRMS 2CH GP 8SOIC2 - ImmediateView Details
DGTL ISO 3000VRMS 2CH GP 8SOICISO7321FCDRDGTL ISO 3000VRMS 2CH GP 8SOIC0View Details
DGTL ISO 3000VRMS 2CH GP 8SOICISO7321FCDDGTL ISO 3000VRMS 2CH GP 8SOIC0View Details
DGTL ISO 3000VRMS 3CH GP 16SOICISO7330FCDWDGTL ISO 3000VRMS 3CH GP 16SOIC357 - Immediate
10000 - Factory Stock
View Details
DGTL ISO 3000VRMS 3CH GP 16SOICISO7331FCDWDGTL ISO 3000VRMS 3CH GP 16SOIC0View Details

Eval Board

ImageManufacturer Part NumberDescriptionAvailable Quantity
EVAL BOARD FOR ISO7310CISO7310C-EVMEVAL BOARD FOR ISO7310C1 - ImmediateView Details
Published: 2015-08-19