INA4180A4IPWR

Instrumentation, Op Amps, Buffer Amps Overview

The INA4180A4IPWR is a quad-channel current sense amplifier manufactured by Texas Instruments, housed in a 14-TSSOP surface-mount package. It operates within a supply voltage range of 2.7 V to 5.5 V and supports a maximum common-mode voltage of 12 V. Key electrical specifications include a gain bandwidth product of 105 kHz, an input offset voltage of 100 µV, and a typical quiescent current of 690 µA. The device features a fixed gain of 20 V/V, a maximum output current of 8 mA per channel, and a gain error of 0.1%. It functions reliably across an extended temperature range from -40°C to +125°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates four independent high-side current sensing channels within a single compact package for space-constrained designs.
• Provides rail-to-rail output capability to maximize dynamic range when operating with low-voltage power supplies.
• Delivers high precision through low input offset voltage and minimal gain error for accurate load monitoring.

Instrumentation, Op Amps, Buffer Amps Applications

• Multi-rail power distribution units requiring simultaneous current monitoring on multiple lines
• Industrial control systems utilizing programmable logic controllers for motor drive protection
• Battery management systems in portable electronics for cell-level charge state estimation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix IPWR corresponds to the TSSOP-14 package variant before ordering. Confirm that the A1 grade designation aligns with required offset voltage tolerances for your application. Ensure compatibility with standard reflow soldering profiles for lead-free assembly processes as specified in the manufacturer's datasheet.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a quad-channel configuration is necessary to reduce board space compared to discrete amplifiers. Consider the 105 kHz bandwidth limit for applications involving fast transient current spikes. Evaluate the 12 V common-mode voltage ceiling against the highest bus voltage present in the system to prevent device damage or saturation.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the INA4180 family of current sense amplifiers, designed specifically for high-side monitoring applications. It serves as a multi-channel alternative to single-channel devices like the INA180 series, offering integrated signal conditioning for multiple loads without requiring external resistors or additional components.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

The INA4180A3IPWR offers a single-channel version within the same family. For automotive applications, the INA4180A3QPWRQ1 provides equivalent functionality with AEC-Q100 qualification.