TIINA219BIDCNR
Overview
The INA219BIDCNR is a high-side current shunt and power monitor with an I2C-compatible interface, designed to measure both shunt voltage drop and bus supply voltage. It provides digital readings of current, voltage, and power through an internal 12-bit ADC, supporting bus voltages from 0V to 26V.
Why Choose This Part
The device offers high accuracy with a maximum offset of 0.5 percent and handles bus voltages up to 26V independently of the 3V to 5.5V supply voltage. Its small SOT-23-8 footprint and low 0.7mA operating current make it ideal for space-constrained, power-sensitive designs.
Applications
Key Specifications
Getting Started
Engineers can evaluate this part using the INA219EVM evaluation module or by connecting the SOT-23-8 package to an I2C bus on an MCU like an Arduino or ESP32. Software development is simplified by numerous open-source libraries that handle the internal calibration register settings for direct current and power readouts.
INA219 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Accuracy | Package | Stock |
|---|---|---|---|
| INA219BIDCNR (this part) | +/-0.5% | 8-23 | 4,548 |
| INA219AIDR | +/-1% | SOIC-8 | 31,084 |
| INA219AIDCNR | +/-1% | 8-23 | 50,110 |
| INA219BIDR | +/-0.5% | SOIC-8 | 24,044 |
| INA219EVM | — | — | 6 |
