INA213AIDCKTG4

Overview

The INA213AIDCKTG4 is a bidirectional, zero-drift current shunt monitor from Texas Instruments. It detects voltage drops across a shunt resistor with a common-mode voltage range of -0.3V to 26V. The device features a fixed gain of 100V/V and operates on a single supply voltage between +2.7V and +26V. Key electrical parameters include a maximum supply current of 100μA, an input bias current of 28μA, and an input offset voltage of 5μV. It offers a gain bandwidth product of 30kHz and a common-mode rejection ratio of 120dB. The component functions within a temperature range of -40°C to +125°C and is housed in a SC-70-6 package.

Feature Summary

• Zero-drift architecture ensures low offset voltage for accurate sensing at small full-scale voltage drops.
• Bidirectional capability allows detection of voltage drops across the shunt resistor regardless of polarity.
• Wide common-mode voltage range supports monitoring in high-side configurations up to 26V.

Applications

• Battery management systems
• Overcurrent protection circuits
• Load switch control

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free compliance and RoHS standards when sourcing. Confirm the SC-70-6 package dimensions match your PCB footprint requirements. Ensure the fixed gain of 100V/V aligns with your target current measurement range and output voltage swing capabilities within your system design constraints.

Selection Notes

Select this component when precise low-voltage drop measurement is required without external calibration. The zero-drift technology minimizes errors over temperature variations compared to standard amplifiers. Consider the fixed gain limitation; if variable gain is needed, other devices in the family may be more suitable. Verify that the 26V common-mode limit accommodates your highest bus voltage.

Part Context

This part belongs to the INA21x series of current shunt monitors. These devices are designed to replace traditional operational amplifier solutions by integrating precision resistors and amplification stages into a compact form factor. The series emphasizes accuracy and ease of use in space-constrained applications requiring reliable current monitoring.

Replacement Considerations

INA213AIDCKT is the non-lead-free equivalent. INA210, INA211, INA212, and INA214 offer different fixed gains (10, 20, 50, 100 V/V respectively) but share similar architectural features.