INA213AIDCKT

Overview

The INA213AIDCKT is a voltage-output, bidirectional zero-drift current-shunt monitor manufactured by Texas Instruments. It supports both high-side and low-side measurements with a gain of 75 V/V. Key electrical parameters include a maximum supply voltage of 26 V, a minimum operating voltage of 2.7 V, and an operating supply current of 100 µA. The device features a gain-bandwidth product of 40 kHz, a common-mode voltage range up to 12 V, and a common-mode rejection ratio of 140 dB. Input characteristics include a bias current of 28 µA and an offset voltage of 1 µV. Gain error is specified at 0.02%. The component operates within a temperature range of -40°C to +125°C and is housed in a SC-70-6 package.

Feature Summary

• Bidirectional measurement capability for accurate current monitoring in both directions
• Zero-drift architecture ensures high precision with minimal offset drift over time and temperature
• Supports both high-side and low-side shunt resistor configurations

Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops
• Overcurrent protection circuits

Procurement Notes

Verify the specific suffix 'CKT' corresponds to the SC-70-6 tape-and-reel packaging configuration as defined in the official datasheet. Confirm that the 'A' grade designation meets the required offset voltage and gain accuracy specifications for your application. Ensure compatibility with the 2.7 V to 26 V supply range and check humidity sensitivity handling requirements during assembly.

Selection Notes

Select this component when high precision is required without the need for external calibration due to its zero-drift technology. It is suitable for applications demanding low power consumption (100 µA) and small form factor (SC-70-6). Consider the 12 V common-mode limit; if higher voltages are present, a different series member may be necessary. The fixed 75 V/V gain dictates the input signal scaling relative to the output voltage range.

Part Context

The INA213 belongs to the INA21x family of zero-drift current-shunt monitors from Texas Instruments. This series is designed to replace traditional operational amplifier-based solutions, offering integrated precision and reduced board space. The INA213 specifically provides a fixed gain of 75 V/V, distinguishing it from other family members like the INA214 or INA219 which offer different gains or digital interfaces.

Replacement Considerations

Direct substitutes within the same package and pinout include other variants from the INA21x series such as the INA213AIDCKR, provided the reel/cut-tape packaging matches the requirement. Verify that any replacement maintains the 75 V/V gain and zero-drift characteristics.