AD73360LAR

Overview

The AD73360LAR is a six-input channel analog front-end processor designed for general-purpose applications, including industrial power metering and motor control. It integrates six independent 16-bit sigma-delta A/D converters with simultaneous sampling capability. Each channel features a programmable gain amplifier (PGA) with eight gain stages ranging from 0 dB to 38 dB. The device operates on a single supply voltage between 2.7 V and 3.6 V, consuming a maximum of 80 mW at 2.7 V. It includes an on-chip 1.2 V reference and supports cascading multiple devices via a flexible serial port interface.

Feature Summary

• Six 16-bit A/D converters with simultaneous sampling
• 76 dB Signal-to-Noise Ratio (SNR) over DC to 4 kHz bandwidth
• Programmable input gain amplifier (PGA) with 0 dB to 38 dB settings
• Maximum sample rate of 64 kS/s with low group delay (25 µs typ)
• –95 dB crosstalk between ADC channels

Applications

• Industrial power metering
• General-purpose analog input systems
• Motor control applications
• Simultaneous sampling applications

Procurement Notes

Verify the ordering suffix 'L' indicates the industrial temperature range of –40°C to +85°C and the 'AR' package option corresponds to the 28-lead Small Outline IC (SOIC). Confirm that the specific revision matches the provided datasheet REV.0 specifications. Ensure compatibility with single 2.7 V to 3.6 V supply requirements for both analog and digital domains.

Selection Notes

Select this component when six-channel simultaneous sampling with high isolation is required. The 76 dB SNR and –95 dB crosstalk make it suitable for precision metering. Ensure the host DSP can support the SPORT interface timing. Consider the 25 µs group delay for phase-sensitive applications. Verify that the external master clock frequency allows for the desired sample rates (8 kHz, 16 kHz, 32 kHz, or 64 kHz).

Part Context

The AD73360L is part of Analog Devices' family of multi-channel analog front-end processors. It is specifically optimized for applications requiring synchronized acquisition across multiple channels without phase delay. The device simplifies system design by integrating signal conditioning, PGA, and sigma-delta conversion into a single package, reducing the need for external amplifiers and filters.

Replacement Considerations

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