INA211AIDCKTG4

Overview

The INA211AIDCKTG4 is a bidirectional, zero-drift current shunt monitor from the Texas Instruments INA21x family. It features a fixed gain of 50 V/V and operates on a single supply voltage ranging from +2.7V to +26V. The device detects common-mode voltages from -0.3V to 26V with an input bias current of 28 µA and a maximum supply current of 65 µA. It offers a gain error of 0.5% and a CMRR of 105 dB. Operating temperatures range from -40°C to +125°C in a SC-70-6 package.

Feature Summary

• Zero-drift architecture ensures low offset for accurate sensing at full-scale voltages as low as 10mV
• Bidirectional capability allows detection of positive and negative currents relative to ground
• Wide common-mode voltage range supports high-side monitoring independent of supply voltage

Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops for load cell and sensor excitation
• Overcurrent protection circuits in power distribution units

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status according to the manufacturer's latest documentation. Confirm the SC-70-6 package marking matches the intended design requirements. Ensure the operating temperature range aligns with the system's environmental specifications before finalizing procurement orders.

Selection Notes

Select this component when a fixed gain of 50 V/V is required for high-side current sensing applications. The zero-drift technology makes it suitable for precision measurements where low offset voltage is critical. Consider the 65 µA supply current for battery-powered designs and verify that the SC-70-6 footprint fits the PCB layout constraints.

Part Context

This part belongs to the INA21x series of current shunt monitors, which provide five fixed gain options. The series utilizes a chopper-stabilized architecture to minimize drift over temperature. The INA211 variant specifically provides a gain of 50 V/V, distinguishing it from other members like the INA210 or INA212 within the same family.

Replacement Considerations

The INA211AIDCKRG4 is a verified substitute offering identical electrical characteristics and functionality in the same SC-70-6 package.