4242-VPK Small-Footprint and Low-Power 4/0 Quad Channel Digital Isolator with Noise Filter - ISO7140CC


4242-VPK Small-Footprint and Low-Power 4/0 Quad Channel Digital Isolator with Noise Filter


Recommended alternative parts

  • ISO7740  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range, and better immunity and robustness


ISO7131, ISO7140, and ISO7141 devices provide galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. ISO7131 has three channels with two forward and one reverse-direction channels. ISO7140 and ISO7141 are quad-channel isolators; ISO7140 has four forward channels, ISO7141 has three forward and one reverse-direction channels. These devices are capable of 50-Mbps maximum data rate with 5-V supplies and 40-Mbps maximum data rate with 3.3-V or 2.7-V supplies, with integrated filters on the inputs for noise-prone applications. The suffix F indicates that default output state is low; otherwise, the default output state is high.

Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used 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 devices have TTL input thresholds and can operate from 2.7-V, 3.3-V, and 5-V supplies. All inputs are 5-V tolerant when supplied from a 2.7-V or 3.3-V supply.


  • Maximum Signaling Rate: 50 Mbps (With 5-V Supplies)
  • Robust Design With Integrated Noise Filter
  • Default Output Low Option (Suffix F)
  • Low Power Consumption, Typical ICC per Channel
    (With 3.3-V Supplies):
    • ISO7131: 1.5 mA at 1 Mbps,
      2.6 mA at 25 Mbps
    • ISO7140: 1 mA at 1 Mbps,
      2.3 mA at 25 Mbps
    • ISO7141: 1.3 mA at 1 Mbps,
      2.6 mA at 25 Mbps
  • Low Propagation Delay: 23-ns Typical
    (3.3-V Supplies)
  • Wide Temperature Range: –40°C to 125°C
  • 50-kV/µs Transient Immunity, Typical
  • Long Life With SiO2 Isolation Barrier
  • Operates from 2.7-V, 3.3-V, and 5-V Supply and Logic Levels
  • Small QSOP-16 Package
  • Safety and Regulatory Approvals
    • 2500-VRMS Isolation for 1 minute per UL 1577
    • 4242-VPK Isolation per DIN V VDE V 0884-10 (VDE V
      0884-10):2006-12, 566 VPK Working Voltage
    • CSA Component Acceptance Notice 5A, IEC 60950-1
      and IEC 61010-1 End Equipment Standards
    • CQC Certification per GB 4943.1-2011

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Parametrics Compare all products in Digital Isolators

Integrated Isolated Power
Number of Channels (#)
Forward/Reverse Channels
Isolation Rating (Vrms)
Surge Voltage Rating (Vpk)
Data Rate (Max) (Mbps)
Propagation Delay (Typ) (ns)
Default Output
VCC (Min) (V)
VCC (Max) (V)
Operating Temperature Range (C)
No    No    No    No    No   
4    3    4    4    4   
4/0    2/1    4/0    3/1    3/1   
2500    2500    2500    2500    2500   
4000    4000    4000    4000    4000   
50    50    50    50    50   
23    23    23    23    23   
High    High    Low    High    Low   
2.7    2.7    2.7    2.7    2.7   
5    5    5    5    5   
Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
16SSOP    16SSOP    16SSOP    16SSOP    16SSOP