ISO7821 Digital Isolator

Texas Instruments offers its ISO7821 high-performance 8,000 VPK reinforced dual-channel digital isolator

Image of Texas Instruments ISO7821 Digital IsolatorTexas Instruments' ISO7821 is a high-performance, dual-channel digital isolator with 8,000 VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. ISO7821 has one forward and one reverse-direction channel. If the input power or signal is lost, default output is 'high' for the ISO7821 and 'low' for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7821 has been significantly enhanced to ease system-level ESD, EFT, surge and emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption.

Features
  • Signaling rate: up to 100 Mbps
  • Wide supply range: 2.25 V to 5.5 V
  • 2.25 V to 5.5 V level translation
  • Wide temperature range: -55°C to +125°C
  • Low power consumption, typical 1.8 mA per channel at 1 Mbps
  • Low propagation delay: 11 ns typical (5 V supplies)
  • Industry leading CMTI(min): ±100 kV/µs
  • Robust electromagnetic compatibility (EMC)
  • System-level ESD, EFT, and surge immunity
  • Low emissions
  • Isolation barrier life: > 25 years
  • SOIC-16 wide body (DW) and extra-wide body (DWW) package options
  • Safety and regulatory approvals:
    • 8,000 VPK reinforced isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5.7 kVRMS isolation for 1 minute per UL 1577
    •  CSA component acceptance notice 5A, IEC 60950-1 and IEC 60601-1 end equipment standards
    • CQC certification per GB4943.1-2011
    • TUV certification per EN 61010-1 and EN 60950-1
    • All DW package certifications complete; DWW package certifications complete per UL, and TUV, and planned for VDE, CSA, and CQC

ISO7821 Digital Isolator

ImageManufacturer Part NumberDescriptionAvailable Quantity
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821DWDGTL ISO 5700VRMS 2CH GP 16SOIC0View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821LLDWRDGTL ISO 5700VRMS 2CH GP 16SOIC2699 - Immediate
8000 - Factory Stock
View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821DWWDGTL ISO 5700VRMS 2CH GP 16SOIC9990 - Factory StockView Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821LLSDWDGTL ISO 5700VRMS 2CH GP 16SOIC765 - ImmediateView Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821FDWRDGTL ISO 5700VRMS 2CH GP 16SOIC0View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821DWRDGTL ISO 5700VRMS 2CH GP 16SOIC0View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821LLSDWRDGTL ISO 5700VRMS 2CH GP 16SOIC1828 - ImmediateView Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821FDWWDGTL ISO 5700VRMS 2CH GP 16SOIC310 - Immediate
3510 - Factory Stock
View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821LLDWWRDGTL ISO 5700VRMS 2CH GP 16SOIC838 - Immediate
20001 - Factory Stock
View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821LLSDWWRDGTL ISO 5700VRMS 2CH GP 16SOIC876 - Immediate
20001 - Factory Stock
View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821FDWWRDGTL ISO 5700VRMS 2CH GP 16SOIC0View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821FDWDGTL ISO 5700VRMS 2CH GP 16SOIC0View Details
DGTL ISO 5700VRMS 2CH GP 16SOICISO7821LLDWDGTL ISO 5700VRMS 2CH GP 16SOIC160 - Factory StockView Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionEmbeddedAvailable QuantityView Details
EVAL BOARD FOR ISO7821LLISO7821LLEVMEVAL BOARD FOR ISO7821LLNo1 - ImmediateView Details
EVAL BOARD FOR ISO7821LLSISO7821LLSEVMEVAL BOARD FOR ISO7821LLSNo4 - ImmediateView Details
Published: 2015-02-24