INA210CIDCKR

Overview

The INA210CIDCKR is a voltage-output, bidirectional current shunt monitor from Texas Instruments. It operates with a single supply voltage ranging from +2.7V to +26V and consumes a maximum of 100µA. The device detects voltage drops across a shunt resistor within a common-mode voltage range of -0.3V to 26V. Key electrical parameters include an input offset voltage (Vos) of up to 5µV, an input bias current (Ib) of 35µA, and a gain bandwidth product (GBP) of 14kHz. It features a CMRR of 120dB and a gain error of 0.5%. The component functions in an extended temperature range from -40°C to +125°C and is housed in a SC-70-6 package.

Feature Summary

• Zero-drift architecture ensures low offset for accurate sensing at small full-scale voltages
• Bi-directional capability allows measurement of high-side or low-side currents
• Operates independently of the power supply voltage over a wide common-mode range

Applications

• Battery management systems
• Power management circuits
• Portable equipment current monitoring

Procurement Notes

Verify the specific suffix 'CIDCKR' against the manufacturer's official datasheet to confirm the exact grade and packaging configuration. Ensure the ordering information matches the required tolerance and thermal specifications. Confirm that the SC-70-6 package dimensions align with the target PCB layout constraints before finalizing procurement.

Selection Notes

Select this component when precise current monitoring is required at low voltage drops without external calibration. The zero-drift technology minimizes offset errors, making it suitable for applications where the shunt voltage may be as low as 10mV. Consider the 14kHz bandwidth and 120dB CMRR for noise-sensitive environments requiring stable DC measurements.

Part Context

This part belongs to the INA21x family of current shunt monitors designed for high-precision applications. The series utilizes chopper stabilization to achieve near-zero drift characteristics. The CID variant typically denotes a specific industrial-grade temperature and accuracy specification within the broader INA210 product line, distinguishing it from standard or automotive grades.

Replacement Considerations

Direct replacements within the same family include INA210BIDCKR and INA210AIDCKR. Verify if the gain error and offset voltage specifications of the substitute meet the system requirements. Ensure pin compatibility and package integrity remain unchanged during substitution.