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Ultra-low power four-channel digital isolator


Package | PIN: SSOP (DBQ) | 16
Temp: M (-55 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.56
10-24 $3.21
25-99 $2.99
100-249 $2.62
250-499 $2.45
500-749 $2.08
750-999 $1.76
1000+ $1.68


  • Ultra-Low Power Consumption
    • 4.2 µA per Channel Quiescent Current (3.3 V)
    • 15 µA perChannel at 100 kbps (3.3 V)
    • 116 µA per Channel at 1 Mbps (3.3V)
  • Robust Isolation Barrier
    • >100-Year Projected Lifetime
    • 3000VRMS Isolation Rating
    • ±100 kV/µs TypicalCMTI
  • Wide Supply Range: 2.25 V to 3.6 V
  • Wide Temperature Range: –55°C to +125°C
  • Small 16-QSOP Package (16-DBQ)
  • Signaling Rate: Up to 2 Mbps
  • Default Output High (ISO7041) and Low (ISO7041F) Options
  • Robust Electromagnetic Compatibility (EMC)
    • System-Level ESD, EFT, and Surge Immunity
    • Very LowEmissions
  • Safety-Related Certifications (Planned):
    • UL 1577 Component Recognition Program
    • DIN V VDE V 0884-11
    • CQC, TUV and CSA Certifications
    • IECEx (IEC 60079-0 &IEC 60079-11) and ATEX (EN 60079-11)

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Texas Instruments  ISO7041FDBQR

The ISO7041 device is an ultra-low power, multichanneldigital isolator that can be used to isolate CMOS or LVCMOS digital I/Os. Each isolation channelhas a logic input and output buffer separated by a double capacitive silicon dioxide(SiO2) insulation barrier. Innovative edge based architecture combined withan ON-OFF keying modulation scheme allows these isolators to consume very-low power while meeting3000-VRMS isolation rating per UL1577. The per channel dynamic currentconsumption of the device is under 120 µA/Mbps and the per channel static current consumption is4.2µA at 3.3 V, allowing for use of the ISO7041 in both power and thermalconstrained system designs.

The device can operate as low as 2.25 V, as high as 3.6 V, and is fullyfunctional with different supply voltages on each side of isolation barrier. The four channel isolator comes in a 16-QSOP package with three forward-directionchannels and one reverse-direction channel in a 16-QSOP package. The device has defaultoutput high and low options. If the input power or signal is lost, default output ishigh for the ISO7041 device without thesuffix F and low for the ISO7041F device with the F suffix. See the DeviceFunctional Modes section for more information.