LT1034BCZ-2.5#TRPBF

Voltage Reference Overview

The LT1034BCZ-2.5#TRPBF is a micropower, precision dual voltage reference IC manufactured by Analog Devices Inc. It integrates a trimmed, thin-film band-gap reference providing fixed outputs of 1.2V and 2.5V, alongside a 7V auxiliary reference. The device operates within a temperature range of 0°C to +70°C. Key electrical specifications include an initial accuracy of 1.2%, a maximum temperature coefficient of 20 ppm/°C, and typical noise of 6µV p-p. It supports a maximum shunt current of 20mA with a minimum operating current of 20µA.

Voltage Reference Feature Summary

• Combines a precision 1.2V/2.5V band-gap reference with a 7V auxiliary output in a single package
• Utilizes trimmed thin-film technology for high stability and low drift
• Designed for micropower applications with ultra-low minimum operating current

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage rails
• Battery-powered instrumentation due to low power consumption

Voltage Reference Procurement Notes

Verify component status carefully as the LT1034 series may be discontinued or subject to limited supply conditions depending on the distributor. Confirm RoHS compliance details directly with the manufacturer or authorized supplier documentation, as legacy parts often have specific environmental declarations. Ensure the TO-92-3 through-hole package matches your PCB footprint requirements before ordering.

Voltage Reference Selection Notes

Select this component when a dual-output reference is required to save board space and simplify design. The 1.2V/2.5V combination is suitable for driving ADCs while the 7V rail can power internal circuitry. Consider the 20ppm/°C tempco if operating in environments with significant temperature fluctuations. The TO-92-3 package limits thermal dissipation capabilities compared to surface-mount options.

Voltage Reference Part Context

This part belongs to the LT1034 family of micropower dual references. It shares architectural similarities with variants like the LT1034IS8-2.5 but differs in package type (TO-92-3 vs SOIC-8) and pinout configuration. The BCZ suffix indicates commercial temperature range and specific packaging format. It serves as a compact solution for applications needing multiple precise voltage levels from a single source.

Voltage Reference Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices for current alternative recommendations or verify compatibility with similar dual-reference ICs from other manufacturers if this specific part is unavailable.