INA241B: what's the Internal resistor range of INA240B3 and INA240A3

Severi Zhou

Part Number: INA241B

Tool/software:

Hi team,

Pls kindly share what's the internal resistor range of INA241B3 and INA241A3 in below figure? Or the resistor level, kohm or ten kohm?

Thanks,

Severi

4 days ago

0 Javier Contreras4 3 days ago

TI__Mastermind 29710 points

Hello Severi,

The resistors are inside but this is a functional block diagram and there are other components inside. Why do you need to know the resistors? Maybe your questions are answered in the IB of the part shown in the datasheet.

Regards,

Javier

0 Clemens Ladisch 3 days ago

Guru 282670 points

The slope in figure 6-20 appears to be about 6.6 kΩ.

Please note that the internal resistors are not designed to have a specific absolute value, but to be accurately matched.

0 Severi Zhou 3 days ago in reply to Clemens Ladisch

TI__Intellectual 1410 points

Hi Clemens,

Thank you for reply.

I want to double check that 6.6kohm is feedback resistor or input resistor value?

Thanks!

0 Clemens Ladisch 3 days ago in reply to Severi Zhou

Guru 282670 points

The inputs behave similar to a 6.6 kΩ resistor (see figure 6-20).

Amplifiers

Amplifiers forum

INA241B: what's the Internal resistor range of INA240B3 and INA240A3