INA180-Q1: Can the IN+ and IN- of the INA180-Q1 current sensing operational amplifier meet the 5B pulse requirements?

Bao Songhao

Part Number: INA180-Q1
Other Parts Discussed in Thread: INA296B-Q1, INA186-Q1

Tool/software:

Can the IN+ and IN- of the INA180-Q1 current sensing operational amplifier meet the 5B pulse requirements? (Note: The front-end circuit will have a TVS tube, clamp voltage: 38.9V)

7 months ago

0 Clemens Ladisch 7 months ago

Guru 297090 points

The absolute maximum ratings do not allow more than 28 V.

0 Bao Songhao 7 months ago in reply to Clemens Ladisch

Intellectual 730 points

Do you have a suitable chip to recommend? thank you

0 Clemens Ladisch 7 months ago in reply to Bao Songhao

Guru 297090 points

INA186-Q1 (with lower GBW); INA296B-Q1 (uses more power).

+1 Louis L 7 months ago

TI__Expert 4580 points

Bao,

Thank you for your question and using the E2E forum. A TI expert will reply to you when we return to the office on Tuesday, 9/3.

Louis

+1 Mallika Senthil 7 months ago

TI__Expert 3815 points

Hi Bao,

As Clemens has mentioned, the INA180-Q1 can't support more than 28V. Aside from the alternative parts Clemens has suggested, please refer to the following link to find more suitable devices from our catalog.
https://www.ti.com/amplifier-circuit/current-sense/analog-output/products.html#726max=36%3B120&

Best,
Mallika Senthil

Amplifiers

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INA180-Q1: Can the IN+ and IN- of the INA180-Q1 current sensing operational amplifier meet the 5B pulse requirements?