INA337: INA337 with single ended input

Semih Senyuz

Part Number: INA337

Tool/software:

Hello Sir,

I want to use INA337 instrumentation amplifier with single ended input and 0.75 Gain with 5V single supply.
Do you think it cause anything wrong if I connect + channel single ended input(sensor single-ended output) and - channel to GND.
And also to provide 0.75 Gain R1 = 400k R2 = 150k is it appopriate?
Ro and Co is the output filter but, C2 which is the parallel to R2 is the anti-aliasing filter?
And what is the C2 logic behind the Figure 1 single supply operation table?
There is no infos about supply current.Shoul I accept the quiscent current as operaional supply current?

Thanks in advance for your support
Best Regards
Semih Senyuz

9 months ago

0 Ashley Kang 9 months ago

TI__Mastermind 19050 points

Hi Semih,

Could you clarify what the input and output range for your application is?

Ro and Co act as the anti-aliasing filter as it ensures to filter out the auto-correction noise from the internal circuitry. The combination with R2 and C2 limit the bandwidth, so when selecting these values, it is important to see what tradeoffs your application is able to withstand regarding bandwidth, noise, and settling time.