SBOA597 November 2024 OPA928
As a result, we obtained calibration data for the coulombmeter at 85°C and 25°C. At the same time, we obtained resistance of the capacitor at 85°C and at 25°C as 19.8PΩ and 106PΩ, respectively. The number can be used for the application circuit as the same capacitor can be used for the application.
We also obtained dielectric absorption time for 85C and at 25°C as 300 minute and 90 minute, respectively.
Unit | 85°C | 25°C | |
---|---|---|---|
Bias current of the coulombmeter | Atto-Ampere | -354.8 to -357.6 | 78.4 to 79 |
Resistance of the integration capacitor | Peta Ω | 19.8 | 106 |
Dielectric absorption time | min | 300 | 90 |
This document demonstrates the calibration of low current measurement in tens of atto-Ampere in resolution.