LTC6652AHLS8-2.5#PBF

Overview

The LTC6652AHLS8-2.5#PBF is a precision buffered voltage reference with a fixed 2.5V output, housed in an 8-lead hermetic ceramic LS8 package. It features A-grade accuracy of ±0.05% and a maximum temperature coefficient of 5ppm/°C over the –40°C to 125°C range. The device supports a supply voltage up to 13.2V with a minimum dropout of 300mV. Key electrical specifications include a low noise of 2.1ppm P-P (0.1Hz to 10Hz), ±5mA source/sink current capability, and less than 2µA shutdown current.

Feature Summary

• High-order curvature compensation ensures predictable temperature characteristics and minimal drift.
• Hermetic 5mm × 5mm surface mount package provides outstanding stability and immunity to humidity.
• Capable of sourcing and sinking 5mA load current without requiring an external output capacitor.
• Includes a low-power shutdown mode that reduces consumption to under 2µA.

Applications

• Automotive control and monitoring systems
• High-resolution data acquisition systems
• Precision regulators
• Medical equipment

Procurement Notes

Verify the specific ordering suffix 'LS8' confirms the 8-lead ceramic LCC package rather than the standard plastic MSOP variant. Ensure the 'A' grade designation matches the required ±0.05% initial accuracy and 5ppm/°C drift specifications for your design. Confirm the '#PBF' suffix indicates lead-free finish compliance. Cross-reference the manufacturer's latest documentation to ensure the part remains active and specifications have not changed.

Selection Notes

Select this component when high long-term stability and humidity resistance are critical, as the hermetic LS8 package outperforms plastic alternatives. Choose the A-grade version if strict accuracy limits of ±0.05% and 5ppm/°C drift are mandatory. Consider the 300mV dropout requirement against your available supply headroom. This part is suitable for applications requiring robust performance across wide industrial or automotive temperature ranges.

Part Context

This device belongs to the LTC6652 family of precision, low-drift, low-noise references. While other variants exist in plastic MSOP packages, the LS8 package offers superior environmental stability due to its hermetic construction. The family shares core architecture but differs in package type, thermal hysteresis performance, and long-term drift characteristics based on the housing material.

Replacement Considerations

LTC6652BHLS8-2.5#PBF