(1) Additional temperature ranges available - contact factory
See the Product Notification section. The ISO7241A is a quad-channel digital isolator with multiple channel configurations and output enable functions. This device has logic input and output buffers separated by TI’s silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, this device blocks high voltage, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.
The ISO7241A has three channels the same direction and one channel in opposition.
This device has TTL input thresholds and a noise-filter at the input that prevents transient pulses from being passed to the output of the device.
A periodic update pulse is sent across the barrier to ensure the proper dc level of the output. If this dc-refresh pulse is not received, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state. (See ISO7240CF (SLLS869) or contact TI for a logic low failsafe option).
The ISO7241A may be powered from either 3.3-V or 5-V supplies on either side in any 3.3-V / 3.3-V, 5-V / 5-V, 5-V / 3.3-V, or 3.3-V / 5-V combination. Note that the signal input pins are 5-V tolerant regardless of the voltage supply level being used.
This device is characterized for operation over the ambient temperature range of –55°C to 125°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | 1-Mbps Quad Digital Isolator datasheet | 11 Jan 2010 | |
| * | VID | ISO7241A-EP VID V6210606 | 21 Jun 2016 | |
| * | Radiation & reliability report | ISO7241AMDWREP Reliability Report | 22 Dec 2014 | |
| White paper | Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) | PDF | HTML | 07 Sep 2023 | |
| Certificate | UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) | 05 Aug 2022 | ||
| White paper | Why are Digital Isolators Certified to Meet Electrical Equipment Standards? | 16 Nov 2021 | ||
| White paper | Distance Through Insulation: How Digital Isolators Meet Certification Requiremen | PDF | HTML | 11 Jun 2021 | |
| EVM User's guide | Universal Digital Isolator Evaluation Module | PDF | HTML | 04 Mar 2021 | |
| Application brief | Considerations for Selecting Digital Isolators | 24 Jul 2018 |
For additional terms or required resources, click any title below to view the detail page where available.
DIGI-ISO-EVM is an evaluation module (EVM) used to evaluate any of the TI single-channel, dual-channel, triple-channel, quad-channel or six-channel digital isolator devices in five different packages - 8-pin narrow-body SOIC (D), 8-pin wide-body SOIC (DWV), 16-pin wide-body SOIC (DW), 16-pin ultra- (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (DW) | 16 | Ultra Librarian |
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