# Delta-sigma modulator

**URL:** <https://forum.plexim.com/t/delta-sigma-modulator/3000>\
**Category:** RT Box\
**Created:** [April 15, 2026, 6:40pm UTC](https://forum.plexim.com/t/delta-sigma-modulator/3000 "2026-04-15T18:40:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![chutson](https://avatars.discourse-cdn.com/v4/letter/c/e274bd/32.png) [@chutson](https://forum.plexim.com/u/chutson)\
**Post date:** [April 15, 2026, 6:40pm UTC](https://forum.plexim.com/t/delta-sigma-modulator/3000/1 "2026-04-15T18:40:13Z")

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Are there any plans to add a delta-sigma ADC output to the RT-Box? This would be something like 5-20MHz clock from my board into a digital input and a digital output with the response.

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**Author:** ![Bryan\_Lieblick](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/bryan_lieblick/32/10_2.png) [@Bryan\_Lieblick](https://forum.plexim.com/u/Bryan_Lieblick)\
**Post date:** [April 16, 2026, 3:08am UTC](https://forum.plexim.com/t/delta-sigma-modulator/3000/2 "2026-04-16T03:08:15Z")

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This feature was added in RT Box Target Support Package Version 4.0 (requires PLECS 5.0 and above). See the [Sigma-Delta Modulator](https://docs.plexim.com/tsp/rtbox/latest/component-reference/sdm_rtbox/) block.

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**Author:** ![chutson](https://avatars.discourse-cdn.com/v4/letter/c/e274bd/32.png) [@chutson](https://forum.plexim.com/u/chutson)\
**Post date:** [April 16, 2026, 12:40pm UTC](https://forum.plexim.com/t/delta-sigma-modulator/3000/3 "2026-04-16T12:40:16Z")

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Perfect! Just upgraded. Thanks Bryan.