Op-Amp Voltage to Current Converter Calculator
Output
About Op-Amp Voltage to Current Converter Calculator
This calculator estimates the output current of an op-amp voltage-to-current converter.
The converter produces an output current that is proportional to the input voltage divided by the input resistance,
with the negative sign indicating a phase inversion between the input and the output.
Formula
The output current is calculated as:
$$ I_{out} = -\frac{V_I}{R_1} $$
Where:
- VI: Input Voltage (in Volts)
- R1: Input Resistance (in Ohms)
- Iout: Output Current (in Amperes, then converted as per desired unit)
Example Calculations
Example 1
- Input Voltage: 5 V
- Input Resistance: 10 kΩ
Using the formula:
$$ I_{out} = -\frac{5}{10\,000} = -0.0005\, A $$
Converted to µA, this is -500 µA.
Example 2
- Input Voltage: 1000 mV (which is 1 V)
- Input Resistance: 1 MΩ
Using the formula:
$$ I_{out} = -\frac{1}{1\,000\,000} = -1\times10^{-6}\, A $$
Converted to µA, this is -1 µA.