ISL28617FVZ-T7A

Overview

The ISL28617FVZ-T7A 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 low input offset voltage of 30µV, excellent CMRR and PSRR of 120dB, 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 voltages 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 T7A corresponds to tape and reel packaging as defined in manufacturer technical briefs. Confirm that the FVZ designation matches the required 24 Ld TSSOP package and RoHS compliance status. Ensure compatibility with the specified operating temperature range of -40°C to +125°C for your application environment.

Selection Notes

Select this component when high DC precision and wide dynamic range are required for differential signal processing. The partitioned power supplies allow independent optimization of input and output stages. Ensure external resistor matching meets gain accuracy requirements, as performance depends heavily on the tolerance of RIN and RFB components.

Part Context

This part belongs to the ISL28617 family of precision instrumentation amplifiers manufactured by Renesas Electronics Corporation (formerly Intersil). It is specifically engineered to bridge high voltage sensor signals with low voltage data acquisition systems while maintaining high common mode rejection ratios.

Replacement Considerations

The datasheet explicitly states: NOT RECOMMENDED FOR NEW DESIGNS and NO RECOMMENDED REPLACEMENT. Contact Technical Support Center for guidance on alternative solutions.