Millivolt to Volt Converter
A field-ready converter for electronics technicians. Converts mV to Volts with logic level indicators. Includes a technician-friendly dark mode for low-light environments.
About
Signal integrity in modern electronics often relies on low-voltage logic levels where precision is paramount. A misinterpretation of millivolt (mV) readings on a multimeter can lead to fried microcontrollers or failed logic gates. Technicians working in server rooms or industrial control panels frequently encounter mix-ups between scale settings (e.g., reading 50mV as 0.5V). This converter mitigates that risk by providing a clear, decimal-accurate transformation.
Designed for the field, this tool accommodates the rapid workflow of circuit diagnosis. It converts sensor outputs, microcontroller pins, and battery deltas instantly. A specialized "Technician Mode" (Dark Mode) is available to reduce glare when working in dimly lit environments, and visual indicators help verify if the converted voltage sits within standard TTL or CMOS logic ranges.
Formulas
The conversion is a metric shift of three decimal places. The prefix "milli" denotes a factor of 10-3.
While the math is trivial, the application requires verifying that the resulting voltage V does not exceed the maximum rating of the downstream component (e.g., 3.3V or 5.0V inputs).
Reference Data
| Signal Type | Voltage (mV) | Voltage (V) | Description |
|---|---|---|---|
| Thermocouple Output | 0.05 | 0.00005 | Typical sensor noise floor |
| EEG Brain Signal | 0.1 | 0.0001 | Medical bio-potential |
| Dynamic Mic | 2 | 0.002 | Audio signal level |
| Schottky Diode Drop | 200 | 0.2 | Forward voltage |
| Logic LOW (TTL) | 400 | 0.4 | Max logic 0 |
| Silicon Diode Drop | 700 | 0.7 | Standard forward voltage |
| Alkaline Cell (Dead) | 900 | 0.9 | Cut-off voltage |
| Logic HIGH (3.3V) | 3,300 | 3.3 | Common logic level |
| Logic HIGH (5V) | 5,000 | 5.0 | Legacy logic level |
| Car Battery | 12,600 | 12.6 | Fully charged |