To determine the maximum possible change in output offset voltage over a period of time (3 months in this case) for the LH0041C op-amp, you will need to look at the thermal drift specification from the op-amp's datasheet.
The thermal drift is often given in units of µV/°C or mV/°C per degree Celsius of temperature change.
If you have this specification, you can calculate the voltage change over a period of time considering the temperature variation in the environment (typically room temperature fluctuations are assumed to be a few degrees over time).
However, without the specific values from the datasheet of the LH0041C op-amp, we can't calculate the exact value here.
Assuming the thermal drift is known from the datasheet, the formula for output offset voltage change due to thermal drift is:
ΔVooT=Thermal Drift Coefficient×ΔT×Initial Offset Voltage\Delta V_{ooT} = \text{Thermal Drift Coefficient} \times \Delta T \times \text{Initial Offset Voltage}ΔVooT=Thermal Drift Coefficient×ΔT×Initial Offset Voltage
Where:
- Thermal Drift Coefficient is provided in the datasheet (in µV/°C or mV/°C).
- ∆T is the temperature change over the time period (in °C).
- Initial Offset Voltage is the offset voltage at the beginning (which is typically nulled in your case).
Given the options, you would select the correct change in output offset voltage after applying this calculation based on the thermal drift.
For this specific question, I would recommend checking the datasheet of the LH0041C op-amp for the thermal drift specification to make the exact calculation.