AD73360LARZ

Overview

The AD73360LARZ is a six-channel analog front-end processor featuring six independent 16-bit sigma-delta ADCs. It provides simultaneous sampling with a maximum sample rate of 64 kS/s and a typical signal-to-noise ratio of 77 dB over a DC to 4 kHz bandwidth. Each channel includes 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 +5.5 V, consuming a maximum power of 80 mW at 2.7 V. It integrates an on-chip reference and communicates via a flexible serial port supporting cascaded configurations.

Feature Summary

• Six 16-bit simultaneous sampling ADC channels
• Programmable input gain amplifier (PGA) with 0 dB to 38 dB settings
• Integrated on-chip voltage reference
• Flexible serial port for DSP interfacing

Applications

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

Procurement Notes

Verify the specific suffix 'L' against official Analog Devices documentation to confirm if it denotes a distinct temperature grade or package variant compared to standard AD73360 parts. Confirm current production status as some AD73360 variants have been discontinued. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS circuitry.

Selection Notes

Select this component when multi-channel synchronous sampling is required with integrated signal conditioning. The internal PGA reduces the need for external amplifiers. Ensure the host DSP supports the required serial clock rates and that the input signal range matches the selected reference voltage configuration (1.25 V or 2.5 V). Verify that the 44-lead TQFP package fits the PCB layout constraints.

Part Context

The AD73360 series is designed for high-performance analog front-end processing in industrial environments. It consolidates signal conditioning, conversion, and digital filtering into a single IC. The 'ARZ' and 'ASUZ' variants represent different package options (SOIC and TQFP respectively) within the same functional family, offering flexibility for various board space requirements.

Replacement Considerations

Direct pin-compatible replacements include other AD73360 variants such as AD73360ARZ or AD73360ASUZ, provided the package type matches. Verify that any substitute maintains the 6-channel architecture and 16-bit resolution. Check datasheets for differences in operating temperature ranges or power consumption specifications.