INA215BIDCKT

Overview

The INA215BIDCKT is a bidirectional, zero-drift current shunt monitor manufactured by Texas Instruments. It operates with a supply voltage range of 2.7 V to 26 V and supports common-mode voltages from -0.3 V to 26 V. The device features a fixed gain of 75 V/V, a gain bandwidth product of 40 kHz, and an input offset voltage of 1 µV. It draws a maximum operating supply current of 100 µA and offers a common-mode rejection ratio of 140 dB. 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 high-precision measurements across the full operating temperature range.
• Bidirectional sensing capability allows detection of voltage drops on the shunt resistor regardless of current direction.
• High common-mode rejection ratio maintains accuracy despite significant variations in common-mode voltage levels.

Applications

• Battery management systems requiring precise current monitoring
• Industrial process control loops with high common-mode voltages
• Overcurrent protection circuits in power distribution units

Procurement Notes

Verify the specific suffix 'CKT' corresponds to the tape-and-reel packaging configuration when ordering. Confirm that the device meets RoHS compliance requirements for your target market. Ensure the SC-70-6 footprint matches your PCB layout constraints. Check for any moisture sensitivity level restrictions during assembly processing.

Selection Notes

Select this component when high precision is required at low voltage drops across the shunt resistor. The zero-drift technology eliminates the need for external calibration in many applications. Consider the 75 V/V gain factor to ensure the output signal remains within the ADC input range of your microcontroller or data acquisition system.

Part Context

This part belongs to the INA21x family of current shunt monitors, which are designed for high-side and low-side current sensing applications. The family shares similar architectural features but varies in gain, bandwidth, and accuracy specifications. The INA215 specifically targets applications requiring higher bandwidth compared to lower-speed variants in the same series.

Replacement Considerations

The INA215BIDCKR is a reel-packaged alternative within the same functional family. Verify pin compatibility and electrical parameter equivalence before substitution. Other INA21x variants may require gain adjustment or circuit modification due to differing bandwidth or accuracy specs.