AD7609BSTZ-RL

ADCs/DACs - Special Purpose Overview

The AD7609BSTZ-RL is an 18-bit, 8-channel true differential simultaneous sampling analog-to-digital data acquisition system (DAS) manufactured by Analog Devices Inc. It operates from a single 5 V analog supply and accommodates ±20 V or ±10 V bipolar input ranges. The device integrates a second-order antialiasing filter with a 32 kHz cutoff frequency, track-and-hold amplifiers, and a 2.5 V reference buffer. It supports throughput rates up to 200 kSPS across all channels. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 98 dB and Total Harmonic Distortion (THD) of −107 dB. The component utilizes a 64-lead LQFP package and features flexible parallel or serial digital interfaces.

ADCs/DACs - Special Purpose Feature Summary

• 18-bit resolution with 8 simultaneously sampled true differential inputs
• Integrated second-order antialiasing filter and 1 MΩ analog input impedance
• Supports ±20 V and ±10 V bipolar input ranges via RANGE pin selection
• Flexible digital interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols

ADCs/DACs - Special Purpose Applications

• Power line monitoring and protection systems
• Multiphase motor control applications
• Instrumentation and control systems
• Multiaxis positioning systems
• Data acquisition systems (DAS)

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific revision level (Rev. D) against the latest Analog Devices documentation to ensure parameter accuracy. Confirm that the ordering suffix '-RL' corresponds to the reel packaging format required for automated assembly processes. Ensure compatibility with the host system's logic voltage levels, as the VDRIVE supply range spans 2.3 V to 5.25 V.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high channel count and simultaneous sampling are required without external multiplexers. The integrated antialiasing filter simplifies design by eliminating external passive components. Consider the power consumption of 100 mW in normal mode versus 25 mW in standby mode for thermal management. Verify that the 1 MΩ input impedance meets the source drive requirements of the application signals.

ADCs/DACs - Special Purpose Part Context

The AD7609 belongs to the AD760x family of high-resolution data acquisition systems. It serves as the differential input counterpart to the AD7608, which offers single-ended inputs. This part number represents the tape and reel variant of the standard AD7609BSTZ, designed for high-volume manufacturing integration within industrial and energy monitoring sectors.

ADCs/DACs - Special Purpose Replacement Considerations

The AD7606B provides a 16-bit alternative with similar functionality but lower resolution. For single-ended input requirements, the AD7608 is the direct functional equivalent within the same package. Ensure that any replacement maintains the 64-lead LQFP footprint and compatible logic voltage specifications.