ISL28634FVZ

Overview

The ISL28634FVZ is a single-channel, zero-drift instrumentation amplifier manufactured by Renesas Electronics Corporation. It features rail-to-rail I/O and a differential output, designed for high-precision applications. Key electrical parameters include a gain-bandwidth product of 2.3 MHz, a slew rate of 800 mV/us, and an input bias current of 400 pA. The device operates with a supply voltage range of 2.5 V to 5.5 V and maintains functionality within a temperature range of -40°C to +125°C. It is housed in a TSSOP-14 package.

Feature Summary

• Zero-drift architecture ensures low offset voltage and minimal drift over time and temperature variations.
• Differential output configuration allows direct interfacing with differential input analog-to-digital converters.
• Rail-to-rail input and output capabilities maximize dynamic range in single-supply systems.
• Programmable gain settings are selectable via a 2-bit, 3-state logic interface.

Applications

• High precision industrial sensor signal conditioning
• Medical equipment data acquisition systems
• Strain gauge and load cell interfaces
• Thermocouple amplification circuits

Procurement Notes

Verify the specific suffix 'FVZ' to confirm the TSSOP-14 package and tape-and-reel or cut-tape availability status. Confirm RoHS compliance details through official Renesas documentation. Check for any recent Product Change Notices (PCN) regarding manufacturing site changes or material updates before finalizing procurement orders.

Selection Notes

Select this component when differential output is required to drive ADCs directly without external circuitry. The zero-drift technology is essential for applications demanding high DC accuracy. Ensure the system power supply remains within the 2.5 V to 5.5 V range. Consider the TSSOP-14 thermal performance if operating at the upper limit of the specified temperature range.

Part Context

The ISL28634FVZ belongs to the ISL2863x family of programmable gain instrumentation amplifiers. This series includes variants with single-ended outputs, such as the ISL2853x, which incorporate an additional uncommitted zero-drift amplifier. The ISL2863x family is distinguished by its dedicated reference pin for setting common-mode output voltage, optimizing it for differential ADC interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers for the ISL28634FVZ were not found in the provided source material. Verify compatibility with alternative devices by matching the zero-drift architecture, differential output type, TSSOP-14 package, and electrical specifications against the original datasheet requirements.