Overview
The INA233AIDGSR, produced by Texas Instruments, is a high-accuracy current, voltage, and power monitor. This device features an I2C-, SMBus-, and PMBus-compatible interface, making it versatile for various applications. It is designed to monitor and report current, voltage, and power values with high precision, utilizing an integrated power accumulator for energy and average power calculations. The INA233AIDGSR operates from a single 2.7-V to 5.5-V power supply and is specified over an operating temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Digital Interface | I2C, SMBus, PMBus |
| Supply Voltage | 2.7 V to 5.5 V |
| Operating Temperature Range | –40°C to +125°C |
| Common Mode Voltage (Max) | 36 V |
| Gain Error (Max) | 0.1% |
| Input Offset (Max) | 10 µV |
| Package Type | 10-Pin VSSOP (DGS) |
| Programmable Addresses | Up to 16 |
| Typical Supply Current | 310 µA (normal operation), 2 µA (standby mode) |
Key Features
- High-side or low-side sensing capability
- Reports current, voltage, and power with high accuracy (0.1% gain error, 10 µV offset)
- Integrated power accumulator for energy and average power monitoring
- Configurable averaging options and programmable calibration values
- Independent alert limits for current, bus voltage, and power
- 1.8-V compliant I2C, SMBus, and PMBus interface
- Low-power standby mode with a typical operating current of 2 µA
- 16-bit delta-sigma (ΔΣ) ADC for precise measurements
Applications
- Servers
- Telecom infrastructure
- High-performance computing
- Power metering
- Battery chargers
- Power supplies
- Test equipment
Q & A
- What is the operating voltage range of the INA233AIDGSR?
The INA233AIDGSR operates from a single 2.7-V to 5.5-V power supply.
- What digital interfaces does the INA233AIDGSR support?
The device supports I2C, SMBus, and PMBus interfaces.
- What is the maximum common mode voltage the INA233AIDGSR can sense?
The device can sense bus voltages from 0 V to 36 V.
- What is the gain error and input offset of the INA233AIDGSR?
The gain error is 0.1% (max), and the input offset is 10 µV (max).
- Does the INA233AIDGSR have programmable addresses?
Yes, it has up to 16 programmable addresses.
- What is the typical supply current in normal operation and standby mode?
In normal operation, the typical supply current is 310 µA, and in standby mode, it is 2 µA.
- What types of measurements can the INA233AIDGSR perform?
The device can measure current, voltage, and power, and also calculate energy and average power using the integrated power accumulator.
- What is the operating temperature range of the INA233AIDGSR?
The device operates over a temperature range of –40°C to +125°C.
- Does the INA233AIDGSR have alert functions?
Yes, it has independent alert limits for current, bus voltage, and power.
- What package type is the INA233AIDGSR available in?
The device is available in a 10-Pin VSSOP (DGS) package.
