INA3221 3-channel voltage and current monitor
35,00 kr
31 in stock
Quantity
Dispatched from Aarhus, Denmark. Shipping calculated at checkout.
Need help choosing? Ask us about your project
INA3221 3-channel voltage and current monitor
35,00 kr
INA3221 voltage and current monitor / 3-channel I2C monitor
Measure your project's voltage and current. Connect via I2C to monitor the supply at 3 points.
The INA3221 is a three-channel high-side current and bus-voltage monitor with an I2C- and SMBus-compatible interface. It monitors shunt voltage drops and bus supply voltages, with programmable conversion times and averaging modes. Critical and warning alerts detect several programmable out-of-range conditions for each channel.
The INA3221 measures current on buses from 0V to 26V. It operates from a single 2.7V–5.5V supply and draws approximately 350µA.
The INA3221 is specified for operating temperatures from -40°C to +125°C.
The I2C- and SMBus-compatible interface has four programmable addresses.
Technical specifications
| Supply voltage | 2.7V–5.5V |
| Voltage measurement range | 0–26V |
| Current measurement range |
±1.6A |
| Measurement accuracy |
Input offset up to ±80µV; overall current accuracy also depends on shunt and calibration. |
| Built-in shunt resistor | 100mΩ |
| Current consumption | 350µA |
| Gain error |
0.25% (max.) |
| Dimensions | 38 × 32 × 3mm |
| Arduino code library | Link |
What's in the package?
- 1 INA3221 3-channel voltage and current monitor with pin headers
Warranty and shipping
We do our best to test all electronics before sending them to you.
This helps us deliver good work and saves you unnecessary trouble during development. Faults can occur, but we see them very rarely. If there is a problem with the equipment you ordered, you can always contact us, and we will be happy to help resolve it.
We dispatch from Aarhus to Denmark and Sweden. Shipping options and prices are shown at checkout. Delivery time depends on availability, destination and shipping method; contact us before ordering if you need an item by a specific date.
The ±1.6A current range assumes a 100mΩ shunt; check shunt markings, dissipation and board current paths. The 0–26V bus range is not the same limit as supply or I2C voltage.
