ISL21009BFB841Z-TK

Overview

The ISL21009BFB841Z-TK is a high voltage input precision, low noise FGA™ voltage reference manufactured by Intersil (Renesas). It provides a fixed output voltage of 4.096V with an initial accuracy of ±2.0mV. The device operates within an input voltage range of 3.5V to 16.5V and features a maximum supply current of 180μA. Output voltage noise is specified at 4.5μVP-P from 0.1Hz to 10Hz. The temperature coefficient is 10ppm/°C, and it supports an output current capability of up to ±7.0mA. It functions in an operating temperature range of -40°C to +125°C and is housed in an 8-lead SOIC package.

Feature Summary

• Delivers high precision voltage referencing with low noise characteristics suitable for sensitive analog circuits.
• Supports wide input voltage ranges allowing flexibility in power supply design.
• Provides stable output performance across extended industrial temperature ranges.

Applications

• High resolution A/Ds and D/As
• Digital Meters
• Industrial/Instrumentation Equipment

Procurement Notes

Verify the specific suffix TK against official Renesas documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact output voltage and accuracy grade required for your design. Cross-reference the manufacturer date code and RoHS compliance status with the latest datasheet revisions to guarantee component authenticity and availability.

Selection Notes

Select this component when a stable 4.096V reference is needed with tight initial accuracy and low noise. Consider the 10ppm/°C temperature coefficient for thermal stability requirements. Evaluate the 180μA supply current against system power budgets. Confirm that the 8-lead SOIC package fits the PCB layout constraints and that the ±7.0mA output current meets load demands.

Part Context

This part belongs to the ISL21009 series of FGA™ voltage references, designed for high-performance signal chain applications. The series offers various output voltages and accuracy grades to suit different precision requirements. Manufactured by Intersil, now part of Renesas Electronics, these devices are engineered for reliability in demanding environments.

Replacement Considerations

Check for direct substitutes within the ISL21009 family with matching 4.096V output and ±2.0mV accuracy. Verify pin compatibility and package dimensions before substituting. Consult official cross-reference lists for any updated or equivalent parts from Renesas.