Texas Instruments INA233AIDGSR
| Parameters | |
|---|---|
| Function | Current Monitor |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | INA233 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Sensing Method | High/Low-Side |
| Voltage - Input | 0V ~ 36V |
| Current - Output | 10mA |
| Supplier Device Package | 10-VSSOP |
| Accuracy | ±0.1% |
INA233AIDGSR High-Precision, Low-Power Current/Power Monitor with I²C Interface
The INA233AIDGSR is a high-precision, low-power current and power monitor with an integrated I²C/SMBus interface, developed by Texas Instruments. This device is designed for accurate current, voltage, and power measurements in a wide range of applications, including server power supplies, battery management systems, and industrial equipment. The INA233 features a 16-bit ΔΣ ADC for precise measurements, with programmable conversion times and averaging to optimize noise performance and speed. It supports measurement ranges up to ±26V (Vbus) and ±163.84mV (Vshunt), making it suitable for both high-side and low-side current sensing applications.
Engineered for high accuracy and flexibility, the INA233AIDGSR provides ±0.1% gain error and ±10µV offset voltage (typical), ensuring reliable measurements even in noisy environments. The device integrates a programmable gain amplifier (PGA) with gains of 1, 2, 4, or 8, allowing it to accommodate a wide range of shunt resistor values. Additionally, the INA233 supports bidirectional current sensing, making it ideal for monitoring charging and discharging currents in battery-powered systems. Its low quiescent current (260µA typical) ensures minimal power consumption, which is critical for battery-operated devices.
This current/power monitor is widely used in power supply monitoring, battery management systems (BMS), server power distribution, and motor control applications. Its high measurement accuracy, low noise, and programmable features make it an excellent choice for systems requiring precise energy monitoring and efficiency optimization. The INA233 also supports daisy-chain operation for multi-device configurations, further enhancing its versatility in complex systems.
Alternative Models:
● INA226AIDGSR: Similar current/power monitor with I²C interface but lower resolution (12-bit ADC) and faster conversion times, ideal for high-speed applications.
● INA219BIDGSR: Basic current/power monitor with I²C interface, lower cost and simpler features, suitable for cost-sensitive designs.
● INA3221AIDGSR: Triple-channel current/power monitor with I²C interface, designed for monitoring multiple rails in power distribution systems.
● ACS723LLCTR-20AB-T: Allegro Microsystems' Hall-effect-based current sensor with integrated signal conditioning, offering galvanic isolation for high-voltage applications.
