LM2903B: single-channel version of LM2903B or similar series

Xiaoying Lu

Part Number: LM2903B
Other Parts Discussed in Thread: TL391B, TL331B, TL391LV, TL331LV

Hi team,

My customer is using LM2903B and they want to find a similar one channel solution of LM2903B, they want similar performance and lower cost.

Do you have any advice here?

Regards,

Xiaoying

11 months ago

0 Clemens Ladisch 11 months ago

Guru 284810 points

The single-channel versions of the LM2903B are the TL331B and TL391B (with different pinouts). For low-voltage applications, consider the TL331LV/TL391LV.

But the LM2903B is extremely widely used, so its production has been optimized so that is cheaper than the single-channel version or even any other comparator. Using only one channel of the LM2903B has the lowest cost; see section 6.1 of the application design guidelines for how to handle the unused channel.

0 Chi Nguyen1 11 months ago

TI__Genius 11701 points

Hi Xiaoying,

Agreed with Clemens, the TL331B family is the single channel variant. Please reach out to our marketing team to work with pricing.

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LM2903B: single-channel version of LM2903B or similar series