INA241B-Q1: 500V/V Gain Option for INA241B-Q1

meran_ruru

Part Number: INA241B-Q1
Other Parts Discussed in Thread: INA241B, INA280-Q1, INA281-Q1, INA253-Q1

Tool/software:

Dear Support Team

The product page for the INA241B-Q1 lists a gain option of 500V/V, but this is not mentioned in the datasheet. Is there an IC model number and datasheet available for a device with a gain of 500V/V?

Thank you very much for your assistance.
Best regards,

3 months ago

+1 Clemens Ladisch 3 months ago

Guru 310880 points

The INA241B6(-Q1) has never existed, and the INA241B without -Q1 does not list this variant. This appears to be an error on the web page.

The nearest replacement would be something like the INA280-Q1/INA281-Q1.

0 meran_ruru 3 months ago in reply to Clemens Ladisch

Prodigy 50 points

Thank you for your response.

I understand that it is a typographical error on the web page.
However, the ICs you suggested can only detect unidirectional current, correct?
If there are any alternative current sense amplifiers that support bidirectional current sensing, I would greatly appreciate it if you could let me know.

0 Clemens Ladisch 3 months ago in reply to meran_ruru

Guru 310880 points

Here is a list of automotive, bidirectional current-sense amplifiers with a gain of 500: ti.com/amplifier-circuit/current-sense/analog-output/products.html#773=500&1498=Automotive&2192=Bidirectional (The INA241B-Q1 entry is wrong.)

I do not know what characteristics you need. There is no solution for common-mode voltages above 40 V; the INA253-Q1 supports 80 V with an integrated shunt resistor.

0 Javier Contreras4 3 months ago in reply to Clemens Ladisch

TI__Mastermind 31190 points

Hello Meran and Clemens,

Thanks for pointing out the error. I will request it get fixed on the web. As for other devices I agree with Clemens.

Regards,

Javier

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INA241B-Q1: 500V/V Gain Option for INA241B-Q1