LT1034BIZ-2.5#PBF

Voltage Reference Overview

The LT1034BIZ-2.5#PBF is a micropower dual voltage reference manufactured by Analog Devices Inc., housed in an 8-Lead SOIC package. It integrates a precision 2.5V thin-film band-gap reference with a 7V auxiliary subsurface zener reference. The primary 2.5V output features a guaranteed temperature coefficient of 20 ppm/°C and an initial accuracy of 1%. Operating currents are as low as 20µA, while the device supports cathode currents up to 20mA. It functions within a supply voltage range of 2.7V to 15V and operates across a temperature range of -40°C to +85°C.

Voltage Reference Feature Summary

• Integrates a high-precision 2.5V band-gap reference alongside a 7V auxiliary zener reference in a single compact package.
• Features ultra-low power consumption suitable for battery-operated applications, drawing only 20µA of operating current.
• Provides excellent thermal stability with a guaranteed low temperature drift rate for the primary reference channel.

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Battery-powered instrumentation systems
• High-resolution data acquisition circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'BIZ' against official manufacturer documentation to confirm the exact tolerance class and package variant. Confirm RoHS compliance status and lead-free specifications directly from the datasheet before procurement. Ensure the selected component matches the required temperature grade and initial accuracy specifications for your design.

Voltage Reference Selection Notes

Select this component when a dual-reference solution is required to save board space and reduce system complexity. The integrated 7V auxiliary reference can serve as a bias source or secondary reference, eliminating the need for additional discrete components. Consider the 20ppm/°C drift specification for applications requiring high long-term stability over varying environmental temperatures.

Voltage Reference Part Context

This part belongs to the LT1034 family of micropower dual references. The family includes variants with different output voltages (1.2V, 2.5V) and packages (TO-92, SOIC). The 'I' designation typically indicates industrial temperature range, while 'Z' often denotes specific packaging or tape-and-reel configurations depending on the manufacturer's coding standards.

Voltage Reference Replacement Considerations

LT1034IS8-2.5#TRPBF

Voltage Reference FAQ

What is the purpose of the 7V terminal on the LT1034?

The 7V terminal provides an auxiliary reference derived from a subsurface zener device. It is intended for less demanding applications compared to the primary 2.5V band-gap reference.

Can the LT1034 operate from unregulated supplies?

Yes, the device features low dynamic impedance, making it easy to use from unregulated power supplies without requiring extensive filtering.