INA260 — i2c address & wiring
Current, voltage and power monitor with the precision shunt built in — no resistor math.
Key facts
INA260 at a glance
| i2c address | 0x400x410x420x430x440x450x460x470x480x490x4A0x4B0x4C0x4D0x4E0x4F address-selectable via pins/jumpers |
|---|---|
| Logic voltage | 2.7–5.5 V |
| Type | adc |
| Part | TI INA260 |
| Ships with | generic modules — plain 0.1″ headers, no connector system |
| Datasheet | TI INA260 — manufacturer documentation ↗ |
The chip
What the TI INA260 actually is
Precision current, voltage and power monitor integrating a factory-calibrated 2 mΩ current shunt. Measures bus voltage, current and calculated power without requiring an external current-sense resistor or calibration-register math.
Wiring
How to connect the INA260
The INA260 talks i2c at address 0x40 (up to 16 selectable addresses, handy when you need more than one on the same bus). It runs at 2.7–5.5 V, so match your host's logic level — if your host is 5 V and a board on the bus is 3.3 V-only, add a level shifter. Use the compatibility checker to confirm the exact cable for your setup.
Because the address is selectable, you can run several INA260 boards on one bus by setting each to a different address — no extra wiring beyond the shared SDA/SCL.
Wiring is the usual four: power, ground, SDA and SCL, plus pull-up resistors — almost always already fitted on the breakout. Nothing showing up? Run an i2c scan first; if the bus is silent, the 7-step checklist finds it faster than guessing.
Go deeper
Guides covering the INA260
Alternatives
Other power monitoring boards
Watch the bus
Boards that clash with the INA260
These want addresses the INA260 also answers (0x42, 0x44, 0x45, 0x4A, 0x4B), so they can't share a bus with it untouched. If one is address-selectable, strap it elsewhere; if not, the conflict guide covers the multiplexer and second-bus routes, and the collision roundup explains why a scan won't warn you.
Get one
Questions
INA260 i2c FAQ
What is the INA260's i2c address?
The INA260 uses 0x40 or 0x41 or 0x42 or 0x43 or 0x44 or 0x45 or 0x46 or 0x47 or 0x48 or 0x49 or 0x4A or 0x4B or 0x4C or 0x4D or 0x4E or 0x4F, selected with an address pin or solder jumper on the board. If a scan turns up something unexpected, our i2c address list names the usual suspect for every address.
What voltage does the INA260 run at?
2.7–5.5 V logic. That range covers both 3.3 V and 5 V hosts, so it drops onto a Pi, ESP32 or Arduino without a level shifter.
Can I use two INA260s on one i2c bus?
Yes — set each one to a different address (0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F) using its address pin or jumper, then wire both to the same SDA/SCL. That gives you up to 16 on a single bus before you need a multiplexer.
Does the INA260 come as a plug-together breakout?
Not in the mainstream connector ecosystems — INA260 modules are generic boards with 0.1″ headers, so you'll be soldering headers and running jumper wires to SDA, SCL, power and ground.