ADE9103ARNZ-REEL

ADCs/DACs - Special Purpose Overview

The ADE9103ARNZ-REEL is a nonisolated, three-channel, simultaneously sampling Σ-Δ analog-to-digital converter (ADC) from Analog Devices Inc. Designed for DC and polyphase shunt-based energy metering applications, it integrates high-gain current channels suitable for low-resistance shunts and voltage channels with ±500 mV single-ended input ranges. The device operates on a single 3.3 V supply and features an internal voltage reference with a typical temperature coefficient of less than 13 ppm/°C. It supports sample rates up to 32 kSPS, achieving signal-to-noise ratios up to 95 dB in voltage channels and 91 dBFS in current channels at lower output rates.

ADCs/DACs - Special Purpose Feature Summary

• Three-channel nonisolated simultaneous sampling architecture
• High-gain current channel with ±31.25 mV peak input range
• Voltage channels with ±500 mV single-ended input range
• Internal voltage reference with <13 ppm/°C typical drift

ADCs/DACs - Special Purpose Applications

• Shunt-based polyphase meters
• DC meters
• Neutral measurement systems
• Process monitoring
• Isolated sensor interfaces

ADCs/DACs - Special Purpose Procurement Notes

Verify the REEL suffix indicates tape-and-reel packaging when sourcing components. Confirm that the specific part number corresponds to the nonisolated ADE9103 variant rather than the isolated ADE9112 or ADE9113 models. Ensure compliance with the specified operating temperature range of −40°C to +125°C for the intended application environment.

ADCs/DACs - Special Purpose Selection Notes

Select the ADE9103ARNZ-REEL for applications requiring multiple synchronized ADC channels without galvanic isolation, such as neutral line measurements. The device is optimized for use with shunt resistors due to its high-gain current inputs. Consider system synchronization requirements, as multiple devices can be clocked from a single crystal or external clock source to ensure coherent data acquisition across phases.

ADCs/DACs - Special Purpose Part Context

The ADE9103 is part of the ADE9103/ADE9112/ADE9113 family of precision Σ-Δ ADCs. While the ADE9112 and ADE9113 variants include safety-certified signal and power isolation, the ADE9103 provides a cost-effective solution for nonisolated environments. All family members share similar SPI interfaces and register structures, facilitating design flexibility across different metering topologies.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.