INA293: Input bias current variation as Electrical Characteristics

Kazuto Tatsumi

Part Number: INA293

Hi team,

Does the Input bias current variation Min, Typ, and Max mean an individual characteristic defined at manufacturing? Otherwise does it means the variation over temperature range?

I think the former is correct because the Electrical Characteristics was tested at Ta=25C as shown in the table, however please help me to make sure.

Regards,
Kazuto

over 4 years ago

+1 Louis L over 4 years ago

TI__Expert 8980 points

Hello Kazuto-san,

Thanks for the question and using the E2E forum.

The Ib limits in the Electrical Characteristics table are only guaranteed at 25C. While we don't guarantee a min or max over temperature, you can see the typical behavior over temperature in Figure 6-14.

Thanks,

Louis

0 Kazuto Tatsumi over 4 years ago in reply to Louis L

TI__Intellectual 2820 points

Hi Louis,

I understood the Ib on Electrical Characteristics shows the individual variation defined at manufacturing, the variation during the operation can be checked with Figure 6-14 depends on temperature, is that correct?

Regards,
Kazuto

+1 Louis L over 4 years ago in reply to Kazuto Tatsumi

TI__Expert 8980 points

Kazuto-san,

Yes, Figure 6-14 shows the typical value for Ib across temperature. You can see that when Vs is 2.7V - 20V and Vcm is 48V or 120V, Ib remains pretty flat across the entire temperature range.

Louis

0 Kazuto Tatsumi over 4 years ago in reply to Louis L

TI__Intellectual 2820 points

Thanks Louis, I understood.

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INA293: Input bias current variation as Electrical Characteristics