ISO7420E, ISO7420FE, ISO7421E, ISO7421FE

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SLLSE45F – DECEMBER 2010 – REVISED JULY 2015

Changes from Revision C (March 2011) to Revision D

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Changed SAFETY feature Bullet From: UL 1577 Approved; Other Approvals Pending To: All Agencies Approvals

Completed .............................................................................................................................................................................. 1

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Changed the REGULATORY INFORMATION table ............................................................................................................ 18

Changes from Revision B (January 2011) to Revision C

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Added devices ISO7420FCC and ISO7421FCC.................................................................................................................... 1

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Changed Feature bullet To: Low Propagation Delay: 7 ns Typical (E-Grade) ....................................................................... 1

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Changed Feature bullet To: Low Pulse Skew: 200 Typical (E-Grade)................................................................................... 1

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Changed the SAFETY and REGULATORY APPROVALS list............................................................................................... 1

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Changed the data sheet DESCRIPTION................................................................................................................................ 1

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Changed the Supply Current values for ISO7421x at 10, 25, and 50 Mbps .......................................................................... 6

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Changed the Supply Current values for ISO7421x at 10, 25, and 50 Mbps .......................................................................... 7

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Changed the Supply Current values for ISO7421x at 10, 25, and 50 Mbps .......................................................................... 8

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Changed the Supply Current values for ISO7421x 25 and 50 Mbps ..................................................................................... 9

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Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics table ................................................................. 10

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Added ISO7421x values for Pulse width distortion, Channel-to-channel output skew time, and Part-to-part skew time .... 10

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Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics table ................................................................. 10

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Added ISO7421x values for Pulse width distortion and Channel-to-channel output skew time........................................... 10

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Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics table ................................................................. 11

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Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics table ................................................................. 11

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Added graphs Figure 5, Figure 6, Figure 7, and Figure 8 .................................................................................................... 12

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Added graphs Figure 14 and Figure 15................................................................................................................................ 13

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Changed Note 1 Figure 16 ................................................................................................................................................... 15

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Changed Figure 17 ............................................................................................................................................................... 15

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Changed the Available Options Table .................................................................................................................................. 17

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Changed Isolation resistance test conditions ....................................................................................................................... 17

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Changed the values of VIORM and VPR in the INSULATION CHARACTERISTICS table ..................................................... 18

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Changed the value of VIOTM in the INSULATION CHARACTERISTICS table From: 4000 To: 4242 .................................. 18

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Changed Figure 21 ............................................................................................................................................................... 19

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Changed PU to X in the last row of the FUNCTION TABLE................................................................................................ 20

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Added section: SUPPLY CURRENT EQUATIONS.............................................................................................................. 22

Changes from Revision A (December 2010) to Revision B

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Changed Feature bullet From: ISO7421: TBDmA at 1Mbps, TBDmA at 25Mbps To: ISO7421: 1.8mA at 1Mbps,

2.8mA at 25Mbps ................................................................................................................................................................... 1

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Updated the ISO7421x Supply Current values for VCC1 and VCC2 = 5V................................................................................. 6

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Updated the ISO7421x Supply Current values for VCC1 = 5V and VCC2 = 3.3V ..................................................................... 7

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Updated the ISO7421x Supply Current values for VCC1 = 3.3V and VCC2 = 5V ..................................................................... 8

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Updated the ISO7421x Supply Current values for VCC1 and VCC2 = 3.3V.............................................................................. 9

Changes from Original (December 2010) to Revision A

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Changed the Max values for Supply current for VCC1 and VCC2, CL = 15pF........................................................................... 9

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Product Folder Links: ISO7420E ISO7420FE ISO7421E ISO7421FE