| Price | $2 |
|---|---|
| Category | Sensors |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
High-side current sensing done properly. The INA219 sits above the load, measures the drop across an onboard 0.1 ohm shunt and the bus voltage at the same time, and hands back current, voltage and power as ready-made digital numbers over I2C - no op-amp maths, no ground-reference shift. Good for a 0-26V bus and up to 3.2 A with the fitted shunt at 0.8 mA resolution, or drop to the lowest gain for 400 mA at 0.1 mA. Ideal for finding out what a battery project really draws.
Key features
- Reports bus voltage, current and power over I2C
- 0 - 26V bus, up to 3.2 A with the 0.1 ohm shunt
- 0.8 mA resolution, or 0.1 mA on the 400 mA range
- High-side sensing - no ground shift
- I2C address 0x40, 16 options via the A0/A1 jumpers
- 3 - 5.5V supply, under 1 mA
Details
Specifications
| Chipset | Texas Instruments INA219 |
|---|---|
| Measures | Bus voltage, shunt voltage, current, power |
| Bus voltage range | 0 - 26V DC |
| Shunt resistor | 0.1 ohm onboard |
| Current range | up to +/-3.2 A, 0.8 mA resolution |
| ADC resolution | 9 to 12-bit, programmable |
| Interface | I2C, default address 0x40 |
| Supply voltage | 3 - 5.5V DC, under 1 mA |
| Connections | 2-way screw terminal (Vin+/Vin-) + 6-pin header |
