ISO7420, ISO7420M, ISO7421

SLLS984I – JUNE 2009 – REVISED JULY 2015

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Changes from Revision B (February 2010) to Revision C

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Added devices ISO7420F and ISO7420FM to the data sheet ............................................................................................... 1

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Added The suffix M indicates wide temperature range (–55°C to 125°C) and the suffix F indicates output-low option

in fail-safe condition. All other devices without the F suffix default to output-high in fail-safe state. ..................................... 1

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Added ISO7420F and ISO7420FM to the Available Options Table ....................................................................................... 6

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Changed value from a max of 4 mA to a min of –4 mA ......................................................................................................... 7

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Changed value from a min of –4 mA to a max of 4 mA ........................................................................................................ 7

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Changed Electrical Characteristics Conditions....................................................................................................................... 8

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Added (All inputs switching with square wave clock signal for dynamic ICC measurement)................................................. 8

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Changed ELECTRICAL CHARACTERISTICS conditions...................................................................................................... 9

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Added High-level output voltage ISO7420 / 7421 (3.3-V side) test condition ....................................................................... 9

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Changed High-level output voltage min value........................................................................................................................ 9

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Added (All inputs switching with square wave clock signal for dynamic ICC measurement)................................................. 9

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Changed ELECTRICAL CHARACTERISTICS conditions...................................................................................................... 9

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Added High-level output voltage ISO7420 / 7421 (5-V side) test condition ........................................................................... 9

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Changed High-level output voltage min value........................................................................................................................ 9

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Added (All inputs switching with square wave clock signal for dynamic ICC measurement)................................................. 9

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Changed ELECTRICAL CHARACTERISTICS conditions.................................................................................................... 10

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Added (All inputs switching with square wave clock signal for dynamic ICC measurement)............................................... 10

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Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 10

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Changed PWD parameter from duration to width ................................................................................................................ 10

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Changed Switching Characteristics conditions..................................................................................................................... 10

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Changed Pulse duration distortion to Pulse width distortion ............................................................................................... 10

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Changed Switching Characteristics conditions..................................................................................................................... 11

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Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 11

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Changed Pulse duration distortion to Pulse width distortion ............................................................................................... 11

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Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 11

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Changed Pulse duration distortion to Pulse width distortion ................................................................................................ 11

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Changed Figure 7 ................................................................................................................................................................. 13

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Added input to output and note 1 to Isolation resistance, input to output ............................................................................ 15

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Changed the Isolation resistance test conditions ................................................................................................................. 15

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Changed the Isolation resistance test conditions ................................................................................................................. 15

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Added note 1 to Barrier capacitance, input to output ........................................................................................................... 15

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Added Input capacitance ...................................................................................................................................................... 15

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Changed From: 124mA To: 107mA...................................................................................................................................... 16

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Changed From: 190mA To: 164mA...................................................................................................................................... 16

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Changed Figure 10 ............................................................................................................................................................... 16

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Changed the Function Table Output values for PU (Open) From: H To: H/L ...................................................................... 17

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Changed the Function Table Output values for PU (X) From: H To: H/L............................................................................. 17

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Changed the Function Table Output values for PU (X) From: H/L To: H............................................................................. 17

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Product Folder Links: ISO7420 ISO7420M ISO7421