AMC1300DWV

Overview

The AMC1300DWV is a precision isolated amplifier from Texas Instruments, designed for high-voltage current sensing applications. It features a ±250-mV input range and a fixed gain of 8.2 V/V. The device provides galvanic isolation with an insulation voltage of 5000 Vrms and a common-mode rejection ratio (CMRR) of 100 dB. It operates on a single supply voltage between 4.5 V and 5.5 V, consuming typical supply currents of 5.9 mA or 7.2 mA depending on the configuration. The component offers a 3-dB bandwidth of 230 kHz and is housed in an 8-pin SOIC package.

Feature Summary

• Provides reinforced galvanic isolation to protect low-side circuitry from high-voltage transients.
• Delivers high-precision signal amplification suitable for accurate current monitoring.
• Features high common-mode rejection capability to maintain accuracy in noisy environments.

Applications

• High-voltage current sensing in motor drives
• Current measurement in solar inverters
• Isolated feedback loops in power supplies

Procurement Notes

Verify the specific suffix against the official datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required insulation rating and operating temperature range. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement.

Selection Notes

Select this component when a fixed gain of 8.2 V/V and a ±250-mV input window are required. Consider the 5000 Vrms isolation rating for safety-critical designs. Evaluate the 230 kHz bandwidth against the system's frequency requirements to ensure adequate signal fidelity without excessive noise.

Part Context

This device belongs to the AMC1300 series of isolated amplifiers. It shares the same core architecture and performance characteristics as other variants within the family, differing primarily in packaging options and shipping configurations. The DWV suffix indicates a specific tube-based packaging format compared to the reel-based DWVR variant.

Replacement Considerations

The AMC1300DWVR serves as a functional equivalent with identical electrical specifications but utilizes reel packaging instead of tubes. Other members of the AMC130x family may offer different gains or bandwidths but require verification of pin compatibility and isolation ratings.