ISL28634FVZ-T7A

Overview

The ISL28634FVZ-T7A is a zero-drift, rail-to-rail I/O programmable gain instrumentation amplifier manufactured by Renesas Electronics Corporation. It operates on a single supply voltage ranging from 2.5V to 5.5V or dual supplies of ±1.25V to ±2.75V. The device features differential output and utilizes unique 2-bit, 3-state logic for gain programming. It offers low offset, low noise, low gain error, and high common-mode rejection ratio (CMRR). The component is housed in a TSSOP-14 package and supports an operating temperature range of -40°C to +125°C.

Feature Summary

• Zero-drift architecture ensures high precision and stability across wide industrial temperature ranges.
• Rail-to-rail input and output capabilities maximize dynamic range within the supply voltage limits.
• Programmable gain functionality allows flexible signal conditioning via 2-bit, 3-state logic control.
• Differential output design provides robust performance against common-mode interference.

Applications

• High-precision industrial sensor signal conditioning
• Medical instrumentation requiring low drift and high accuracy
• Data acquisition systems with varying gain requirements

Procurement Notes

Verify current availability status as the ISL28634FVZ-T7A is scheduled for obsolescence and will be discontinued by the manufacturer. Confirm final purchase orders immediately if integration into existing designs is required. Ensure compatibility with the TSSOP-14 footprint during layout finalization. Review official datasheets for absolute maximum ratings and thermal considerations before implementation.

Selection Notes

Select this component when designing systems that demand ultra-low drift and high CMRR under single or dual supply conditions. The rail-to-rail I/O feature makes it suitable for low-voltage applications where maximizing signal swing is critical. Consider the programmable gain aspect for applications requiring adjustable sensitivity without external resistor networks. Evaluate the TSSOP-14 package constraints regarding board space and thermal dissipation needs.

Part Context

This part belongs to the ISL2863x family of zero-drift instrumentation amplifiers from Renesas. These devices are engineered for applications requiring exceptional DC accuracy and stability over time and temperature. The family typically includes variants with different gain configurations and packaging options, catering to diverse precision analog signal processing needs in industrial and medical sectors.

Replacement Considerations

Due to the scheduled obsolescence, identify alternative zero-drift instrumentation amplifiers with similar rail-to-rail I/O and programmable gain features. Verify pinout compatibility and electrical specifications such as supply voltage range and CMRR to ensure seamless integration into existing designs without significant redesign efforts.

FAQ

How is the gain programmed on the ISL28634FVZ-T7A?

The gain is programmed using unique 2-bit, 3-state logic inputs, allowing for specific gain settings without external resistors.

What is the operating supply voltage range for this amplifier?

It operates on a single supply of 2.5V to 5.5V or dual supplies of ±1.25V to ±2.75V.