ISL21007CFB812Z-TK

Overview

The ISL21007CFB812Z-TK is a precision series voltage reference IC from the FGA™ family, manufactured by Renesas Electronics Corporation. It provides a fixed output voltage of 1.25V with an initial accuracy tolerance of ±0.08%. The device operates within an input voltage range of 3.2V to 5.5V and draws a supply current of 150µA. It supports a maximum output current of 7 mA and features a low noise performance of 4.5µVp-p in the 0.1Hz to 10Hz frequency band. The component exhibits a temperature coefficient of 5ppm/°C and functions reliably across an operating temperature range of -40°C to +125°C. It is housed in an 8-SOIC surface-mount package.

Feature Summary

• Delivers high-precision voltage referencing with guaranteed initial accuracy as low as ±0.08% and low drift characteristics.
• Features ultra-low noise performance suitable for sensitive analog signal processing applications.
• Designed for low-power operation with minimal supply current consumption.

Applications

• High-resolution data acquisition systems
• Precision instrumentation amplifiers
• Calibration references for measurement equipment

Procurement Notes

Verify the specific suffix 'TK' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Renesas Electronics Corporation, formerly Intersil. Check for obsolescence status as the base part may be discontinued. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Validate the 8-SOIC package dimensions against your PCB footprint design.

Selection Notes

Select this component when a stable 1.25V reference is required with tight tolerance specifications. Consider the 5ppm/°C temperature coefficient for environments with significant thermal variations. Evaluate the 150µA supply current against system power budgets. Ensure the 7mA load capability meets the downstream circuit requirements. Verify that the 8-SOIC package fits the available board space.

Part Context

This part belongs to the ISL21007 family of precision voltage references. The family is characterized by low noise and high accuracy, utilizing FGA™ technology. Other variants in the series offer different fixed output voltages but share similar performance metrics regarding noise, drift, and power consumption. The component is designed for industrial and commercial applications requiring reliable voltage regulation.

Replacement Considerations

Direct substitutes include other ISL21007 variants with different output voltages if the voltage level can be adjusted or if a different reference value is acceptable. Cross-reference with Renesas' updated product lines for any newer generations of FGA™ voltage references. Verify pinout compatibility before substituting with generic precision references.

FAQ

What is the output noise specification of the ISL21007CFB812Z-TK?

The peak-to-peak output noise is specified as 4.5µV in the 0.1Hz to 10Hz frequency range.

Does the ISL21007CFB812Z-TK support adjustable output voltages?

No, this specific model provides a fixed output voltage of 1.25V.

What is the maximum output current capability?

The device can source a maximum output current of 7 mA.