INA186A5IDCKT

Overview

The INA186A5IDCKT is a unidirectional current sense amplifier from Texas Instruments, housed in a SC-70-6 package. It features a fixed gain of 50 V/V and supports a common-mode voltage range from -200 mV to 40 V. The device operates on a supply voltage between 1.7 V and 5.5 V with a typical supply current of 90 µA. Key electrical specifications include a maximum input offset voltage of 3 µV, an input bias current of 500 pA, and a gain error of 0.04%. It offers a common-mode rejection ratio of 150 dB and a bandwidth of 37 kHz, functioning within a temperature range of -40°C to +125°C.

Feature Summary

• Zero-drift architecture ensures high precision with minimal offset voltage drift over temperature.
• Bidirectional sensing capability allows detection of current flow in both directions relative to ground.
• Ultra-low supply current enables efficient power management in battery-operated systems.
• High common-mode rejection ratio maintains accuracy in noisy environments with varying common-mode voltages.

Applications

• Battery management systems for portable electronics
• Overcurrent protection circuits in industrial equipment
• Load switching control in automotive applications
• Current monitoring in server and telecom power supplies

Procurement Notes

Verify the specific suffix IDCKT confirms the SC-70-6 package and tape-and-reel shipping format. Confirm RoHS compliance status as required by your manufacturing standards. Check for AEC-Q100 qualification if automotive reliability is mandated. Ensure the operating temperature range meets your environmental design constraints. Validate that the fixed 50 V/V gain aligns with your signal conditioning requirements.

Selection Notes

Select this component when a low-cost, high-precision solution is needed for bidirectional current sensing. The zero-drift technology minimizes calibration needs compared to standard amplifiers. Consider the SC-70-6 package for space-constrained PCB layouts. The 50 V/V gain is suitable for detecting small voltage drops across shunt resistors. Evaluate the 37 kHz bandwidth against your system's noise filtering requirements.

Part Context

This part belongs to the INA186 family of current sense amplifiers, designed for high-accuracy measurements. The series is characterized by its zero-drift operational amplifier architecture, which provides exceptional DC accuracy. The INA186 series is widely used in applications requiring precise current monitoring with minimal external component count. The IDCKT variant specifically denotes the industry-standard SC-70-6 surface-mount package.

Replacement Considerations

Direct replacements may include other INA186 variants with different gains or packages, such as INA186A1IDCKR or INA186A2IDCKR. Verify pin compatibility and gain settings before substitution. Alternative families like INA190 or INA280 offer similar functionality but may differ in bandwidth or common-mode voltage ranges. Always consult the latest datasheets for parameter comparisons.