Overview
The INA213AIDCKTG4 from Texas Instruments is a high-precision, zero-drift current-sensing amplifier. It is part of the INA21x series, designed to accurately measure voltages developed across current-sensing resistors in both low-side and high-side configurations. This device can handle common-mode voltages up to 26 V while being powered from supply voltages as low as 2.7 V. The zero-drift topology ensures high-precision measurements with minimal input offset voltage and low temperature drift, making it suitable for a wide range of applications requiring accurate current sensing.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Operating Voltage Range | TA = –40°C to +125°C | 2.7 | 26 | V | |
| Gain | 50 | V/V | |||
| Offset Voltage, RTI | VSENSE = 0 mV | ±5 | ±100 | µV | |
| Offset Drift vs Temperature | VSENSE = 0 mV, TA = –40°C to +125°C | 0.1 | 0.5 | µV/°C | |
| Gain Error | VSENSE = –5 mV to 5 mV, TA = –40°C to +125°C | ±0.02% | ±1% | % | |
| Gain Error vs Temperature | TA = –40°C to +125°C | 10 | ppm/°C | ||
| Quiescent Current | VSENSE = 0 mV | 65 | 100 | µA | |
| Bandwidth | CLOAD = 10 pF | 80 | kHz | ||
| Slew Rate | 0.4 | V/µs | |||
| Temperature Range | –40 | 125 | °C |
Key Features
- High Precision: Zero-drift topology with maximum input offset voltages as low as ±100 µV and a temperature drift of 0.5 µV/°C.
- Wide Common-Mode Range: Can handle common-mode voltages from –0.3 V to 26 V.
- Low Quiescent Current: Maximum quiescent current of 100 µA.
- High Gain Accuracy: Gain error of ±1% over the full temperature range.
- Compact Packages: Available in SC70 and Thin UQFN packages.
- Wide Operating Voltage Range: Operates from 2.7 V to 26 V supply voltage.
Applications
- Notebook Computers: For precise current sensing in power management systems.
- Cell Phones: To monitor and manage battery charging and discharging.
- Telecom Equipment: For accurate current measurement in high-reliability systems.
- Power Management: In various power supply and battery management systems.
- Battery Chargers: To ensure accurate and efficient charging processes.
Q & A
- What is the gain of the INA213AIDCKTG4?
The gain of the INA213AIDCKTG4 is 50 V/V.
- What is the operating voltage range of the INA213AIDCKTG4?
The operating voltage range is from 2.7 V to 26 V.
- What is the maximum offset voltage of the INA213AIDCKTG4?
The maximum offset voltage is ±100 µV.
- What is the quiescent current of the INA213AIDCKTG4?
The maximum quiescent current is 100 µA.
- What is the bandwidth of the INA213AIDCKTG4?
The bandwidth is 80 kHz with a 10 pF load capacitance.
- What are the typical applications of the INA213AIDCKTG4?
Typical applications include notebook computers, cell phones, telecom equipment, power management, and battery chargers.
- What is the common-mode input range of the INA213AIDCKTG4?
The common-mode input range is from –0.3 V to 26 V.
- What is the slew rate of the INA213AIDCKTG4?
The slew rate is 0.4 V/µs.
- What are the available packages for the INA213AIDCKTG4?
The device is available in SC70 and Thin UQFN packages.
- What is the temperature range of the INA213AIDCKTG4?
The specified temperature range is from –40°C to +125°C.
