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ISO7021

ACTIVO

Ultra-low power, basic 2-channel, 1/1, digital isolator with 120uA/ch Icc and ATEX certification

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ISO7021

ACTIVO
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Detalles del producto

Rating Catalog Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 4 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 1.5 Propagation delay time (typ) (ns) 140 Propagation delay time (max) (ns) 165 Part-to-part output skew (max) (ns) 70 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 10 Channel-to-channel output skew (max) (ns) 10 Certifications ATEX, CQC, CSA, DIN, IECE, TUV Isolation rating Basic Working isolation voltage (VIOWM) (Vrms) 400 Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 6.4 CMTI (min) (kV/µs) 50 Default output High, Low Creepage (min) (mm) 3.7 Current consumption per channel (DC) (typ) (mA) 0.00475 Current consumption per channel (1 Mbps) (typ) (mA) 0.12 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 3.7
Rating Catalog Integrated isolated power No Number of channels 2 Forward/reverse channels 1 forward / 1 reverse Data rate (max) (Mbps) 4 Protocols GPIO, PWM, UART SPI frequency (max) (MHz) 1.5 Propagation delay time (typ) (ns) 140 Propagation delay time (max) (ns) 165 Part-to-part output skew (max) (ns) 70 Pulse-width distortion (t(PHL) - t(PLH)) (max) (ns) 10 Channel-to-channel output skew (max) (ns) 10 Certifications ATEX, CQC, CSA, DIN, IECE, TUV Isolation rating Basic Working isolation voltage (VIOWM) (Vrms) 400 Withstand isolation voltage (VISO) (Vrms) 3000 Surge isolation voltage (VIOSM) (kVPK) 6.4 CMTI (min) (kV/µs) 50 Default output High, Low Creepage (min) (mm) 3.7 Current consumption per channel (DC) (typ) (mA) 0.00475 Current consumption per channel (1 Mbps) (typ) (mA) 0.12 Operating temperature range (°C) -55 to 125 Transient isolation voltage (VIOTM) (VPK) 4242 Clearance (min) (mm) 3.7
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Ultra-low power consumption
    • 4.8µA per channel quiescent current (3.3V)
    • 15µA per channel at 100kbps (3.3V)
    • 120µA per channel at 1Mbps (3.3V)
  • Robust isolation barrier
    • >100-year projected lifetime
    • 3000VRMS isolation rating
    • ±100kV/µs typical CMTI
  • Wide supply range: 1.71V to 1.89V and 2.25V to 5.5V
  • Wide temperature range: –55°C to 125°C
  • Small 8-SOIC package (8-D)
  • Signaling rate: Up to 4Mbps
  • Default output High (ISO7021) and Low (ISO7021F) options
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Very low emissions
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 Component Recognition Program
    • IEC 62368-1, IEC 61010-1 and GB 4943.1
    • IECEx (IEC 60079-0 & IEC 60079-11) and ATEX (EN IEC60079-0 & EN 60079-11)
  • Ultra-low power consumption
    • 4.8µA per channel quiescent current (3.3V)
    • 15µA per channel at 100kbps (3.3V)
    • 120µA per channel at 1Mbps (3.3V)
  • Robust isolation barrier
    • >100-year projected lifetime
    • 3000VRMS isolation rating
    • ±100kV/µs typical CMTI
  • Wide supply range: 1.71V to 1.89V and 2.25V to 5.5V
  • Wide temperature range: –55°C to 125°C
  • Small 8-SOIC package (8-D)
  • Signaling rate: Up to 4Mbps
  • Default output High (ISO7021) and Low (ISO7021F) options
  • Robust electromagnetic compatibility (EMC)
    • System-level ESD, EFT, and surge immunity
    • ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
    • Very low emissions
  • Safety-related certifications:
    • DIN EN IEC 60747-17 (VDE 0884-17)
    • UL 1577 Component Recognition Program
    • IEC 62368-1, IEC 61010-1 and GB 4943.1
    • IECEx (IEC 60079-0 & IEC 60079-11) and ATEX (EN IEC60079-0 & EN 60079-11)

The ISO7021 device is an ultra-low power, multichannel digital isolator that can be used to isolate CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. Innovative edge based architecture combined with an ON-OFF keying modulation scheme allows these isolators to consume very-low power while meeting 3000VRMS isolation rating per UL1577. The per channel dynamic current consumption of the device is under 120µA/Mbps and the per channel static current consumption is 4.8µA at 3.3V, allowing for use of the ISO7021 in both power and thermal constrained system designs.

The device can operate as low as 1.71V, as high as 5.5V , and is fully functional with different supply voltages on each side of isolation barrier. The two-channel isolator comes in a narrow body 8-SOIC package with one forward and one reverse-direction channel in a 8-SOIC package. The device has default output high and low options. If the input power or signal is lost, default output is high for the ISO7021 device without the suffix F and low for the ISO7021F device with the F suffix. See the Device Functional Modes section for more information.

The ISO7021 device is an ultra-low power, multichannel digital isolator that can be used to isolate CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier. Innovative edge based architecture combined with an ON-OFF keying modulation scheme allows these isolators to consume very-low power while meeting 3000VRMS isolation rating per UL1577. The per channel dynamic current consumption of the device is under 120µA/Mbps and the per channel static current consumption is 4.8µA at 3.3V, allowing for use of the ISO7021 in both power and thermal constrained system designs.

The device can operate as low as 1.71V, as high as 5.5V , and is fully functional with different supply voltages on each side of isolation barrier. The two-channel isolator comes in a narrow body 8-SOIC package with one forward and one reverse-direction channel in a 8-SOIC package. The device has default output high and low options. If the input power or signal is lost, default output is high for the ISO7021 device without the suffix F and low for the ISO7021F device with the F suffix. See the Device Functional Modes section for more information.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos ISO7021 Ultra-Low Power Two-Channel Digital Isolator datasheet (Rev. C) PDF | HTML 20/05/2024
Certificado VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) 15/07/2026
Certificado TUV Certificate for Isolation Devices (Rev. M) 7/05/2026
Certificado UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) 7/05/2026
Nota sobre la aplicación Construction and Marking Report for ATEX / IECEx Certification (Rev. A) PDF | HTML 2/12/2025
Informe Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. D) PDF | HTML 7/11/2025
Certificado ISO7041 Written Attestation of Conformity PDF | HTML 10/09/2025
Certificado CQC Certificate for ISOxxD (Rev. B) 19/08/2025
Certificado CSA Certificate for ISO7021D 24/03/2023
Informe Why are Digital Isolators Certified to Meet Electrical Equipment Standards? 16/11/2021
Nota sobre la aplicación Intrinsic Safety Compliance of Digital Isolators in Explosive Atmospheres (Rev. A) 25/08/2021
Informe Distance Through Insulation: How Digital Isolators Meet Certification Requiremen PDF | HTML 11/06/2021
Artículo técnico Upgrade your explosive atmosphere designs with IECEx-certified digital isolators PDF | HTML 6/11/2020
Certificado ATEX Certificate for Explosive Atmospheres: CSANe 20ATEX2090U 19/08/2020
Certificado IECEx Certificate for Explosive Atmospheres: IECEx CSA 20.0012U 14/08/2020
Artículo técnico Staying on budget: How digital isolators are transforming field transmitters PDF | HTML 24/05/2019
Guía de diseño Isolated power and data interface for low-power applications reference design 30/01/2019

Diseño y desarrollo

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