AMC1204BDW

ADCs/DACs - Special Purpose Overview

The AMC1204BDW is a second-order, isolated delta-sigma modulator designed for high-reliability current-shunt measurement applications. It operates with a clock frequency up to 20 MHz and delivers a data rate of 78 kSPS. The device utilizes silicon dioxide (SiO2) digital isolation technology, providing an isolation voltage of 4000 V peak. It accepts differential inputs within a ±250 mV range and features an internal reference, eliminating the need for external components. The component is available in SOIC-16 packaging and supports operation across a temperature range of -40°C to +105°C.

ADCs/DACs - Special Purpose Feature Summary

• Isolated Delta-Sigma Modulation: Converts analog signals to a 1-bit PWM digital output using SiO2 insulation.
• High Isolation Voltage: Rated at 4000 V peak, compliant with UL1577, IEC60747-5-5, and CSA standards.
• Integrated Reference: Internal reference design reduces external component count and simplifies circuit layout.
• Automotive Qualification: AEC-Q100 qualified for use in demanding automotive electronic environments.

ADCs/DACs - Special Purpose Applications

• Motor controller current sensing via shunt resistor measurement.
• Green energy systems requiring isolated signal acquisition.
• Industrial automation applications needing high reliability and zero-defect performance.

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'DW' corresponds to the SOIC-16 package when sourcing. Confirm that the procurement channel provides original manufacturer documentation to ensure the component meets the specified 4000 V peak isolation rating. Check for AEC-Q100 certification if the application requires automotive-grade validation.

ADCs/DACs - Special Purpose Selection Notes

Select the AMC1204BDW when a 20 MHz clock speed and 78 kSPS data rate are required for isolated current monitoring. Ensure the input signal remains within the ±250 mV differential range. Consider the SOIC-16 footprint for PCB layout constraints. This model is suitable for designs prioritizing galvanic isolation over direct digital conversion.

ADCs/DACs - Special Purpose Part Context

The AMC1204BDW belongs to the Texas Instruments AMC1204 series of isolated analog-to-digital converters. It serves as a bridge between analog sensor signals and digital processing units in electrically noisy environments. The 'BDW' designation specifies the commercial grade variant housed in a standard SOIC-16 package, distinct from the higher isolation AMC1204B models.

ADCs/DACs - Special Purpose Replacement Considerations

The AMC1204B is a related variant offering increased isolation voltage (4250 V peak). Verify pin compatibility and isolation requirements before substituting. No other direct cross-model replacements are confirmed in public documentation.