AMC3301DWE

Overview

The AMC3301DWE is a precision, reinforced isolated amplifier from Texas Instruments featuring an integrated DC/DC converter. It supports a ±250-mV input range and provides a fixed gain of 8.2 V/V. The device operates on a single supply voltage between 3.3 V and 5 V with a typical quiescent current of 29.5 mA. Key electrical specifications include a 3dB bandwidth of 334 kHz, a common-mode rejection ratio (CMRR) of 98 dB, and an input offset voltage of 20 µV. It offers 1200 Vrms isolation via capacitive technology and functions within a temperature range of -40°C to +125°C in a 16-pin SOIC package.

Feature Summary

• Integrated DC/DC converter eliminates the need for external isolated power supplies
• Reinforced insulation capability ensures high safety standards for galvanic isolation
• Capacitive isolation technology provides robust signal transmission across the isolation barrier

Applications

• Precision current sensing in motor drives
• Grid-tied solar inverters
• Industrial process control systems

Procurement Notes

Verify the specific suffix 'DWE' corresponds to the tube packaging variant rather than the reel-based 'DWER'. Confirm that the required isolation rating of 1200 Vrms meets the system's safety requirements, as higher ratings are available in other variants. Ensure the fixed gain of 8.2 V/V aligns with the signal conditioning needs before finalizing the order.

Selection Notes

Select this component when a fixed gain of 8.2 V/V and a ±250-mV input window are suitable for the application. The integrated DC/DC converter simplifies board layout by removing external isolated power components. Consider alternative models if a different gain or wider input range is required, as this part does not offer adjustable parameters.

Part Context

This device belongs to the AMC330x family of precision isolated amplifiers designed for high-performance industrial applications. It shares the same core architecture and package type as other members like the AMC3302 but differs in input range and gain settings. The DWE suffix specifically denotes the tube packaging format used for manual or semi-automated assembly processes.

Replacement Considerations

AMC3301DWER serves as the functional equivalent with identical electrical characteristics but utilizes reel packaging instead of tubes.