INA186A3IDCKR

Overview

The INA186A3IDCKR is a unidirectional current sense amplifier from Texas Instruments, featuring a fixed gain of 100 V/V. It operates within a supply voltage range of 1.7 V to 5.5 V and supports common-mode voltages from -200 mV to 40 V. Key electrical specifications include a maximum input offset voltage of 3 µV, an input bias current of 500 pA, and a quiescent current of 90 µA. The device offers a gain error of 0.04% and a common-mode rejection ratio of 150 dB. It is housed in a SC-70-6 package and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• High precision with ultra-low input offset voltage and minimal gain error for accurate measurements
• Wide common-mode voltage range supporting high-side sensing applications up to 40 V
• Low power consumption suitable for battery-operated systems with low quiescent current
• Integrated zero-drift architecture ensures stable performance over temperature variations

Applications

• Battery management systems
• Overcurrent protection circuits
• Load switch control
• Power delivery monitoring

Procurement Notes

Verify the specific suffix IDCKR corresponds to the SC-70-6 package and A-grade accuracy when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the ordering part number matches the required gain configuration and thermal characteristics for your specific PCB layout constraints.

Selection Notes

Select this component for applications requiring high DC accuracy and wide common-mode voltage tolerance. The fixed 100 V/V gain is optimal for translating small differential signals into measurable output levels. Consider the SC-70-6 package size for space-constrained designs. Evaluate the 90 µA quiescent current against system power budgets to ensure efficiency requirements are met during continuous operation.

Part Context

This device belongs to the INA186 series of zero-drift current sense amplifiers. The series is characterized by its ability to maintain high precision without external trimming. The INA186 family provides various gain options and package configurations to suit different industrial and consumer electronics needs while maintaining consistent electrical performance standards.

Replacement Considerations

Check for direct pin-compatible alternatives within the INA186 family that offer different gain values or package types. Verify if upgraded versions with improved bandwidth or lower noise are available for specific signal integrity requirements.