ISL28617FVZ

Overview

The ISL28617FVZ is a high-performance, differential input, differential output instrumentation amplifier designed for precision analog-to-digital applications. It operates over a supply range of 8V to 40V with a differential input voltage range up to ±34V. The device features a rail-to-rail output stage optimized for driving ADCs and allows gain programming from 0.1 to 10,000 via external resistors RIN and RFB. Key electrical specifications include a maximum input offset voltage of 100µV, a typical CMRR of 120dB at unity gain, and an operating temperature range of -40°C to +125°C.

Feature Summary

• Rail-to-rail differential output drive capability optimized for direct connection to analog-to-digital converters.
• High-voltage interface enabling level shifting between high common-mode signals and low-voltage circuits.
• Kelvin sensing connections on gain resistors to eliminate errors caused by printed circuit board trace resistance.

Applications

• Precision test and measurement equipment
• High voltage industrial process control systems
• Signal conditioning amplifiers for remote powered sensors
• Weigh scales
• ECG and biomedical sense amplifiers

Procurement Notes

Verify the specific suffix 'FVZ' corresponds to the standard tape and reel packaging format as indicated in the datasheet ordering information. Confirm that the component meets RoHS compliance requirements using the specified Pb-free material sets and termination finishes. Ensure the procurement channel provides valid documentation regarding the Moisture Sensitivity Level classification for surface mount assembly processes.

Selection Notes

Select this component when designing circuits requiring high common-mode rejection and precise gain settings without internal resistor tolerances. The partitioned power supplies allow independent optimization of the input stage and the rail-to-rail output stage. Consider the thermal resistance characteristics of the 24-lead TSSOP package for heat dissipation requirements in enclosed environments.

Part Context

This part belongs to the ISL28617 series of precision instrumentation amplifiers manufactured by Renesas Electronics Corporation (formerly Intersil). The device is specifically engineered to provide high DC precision and excellent AC performance for demanding signal conditioning tasks. It utilizes a unique architecture that separates the input and feedback stages from the output driver to maximize dynamic range and linearity.

Replacement Considerations

The datasheet explicitly states that this component is not recommended for new designs and lists no recommended replacement part numbers. Users are advised to contact the Technical Support Center for guidance on alternative solutions or legacy support options.