LT1034IZ-1.2#TRPBF

Voltage Reference Overview

The LT1034IZ-1.2#TRPBF is a micropower, precision dual voltage reference integrated circuit manufactured by Analog Devices Inc. It integrates a trimmed, thin-film band-gap reference providing a fixed output of 1.2V with an initial tolerance of 1% and guaranteed temperature drift of 20 ppm/°C. The device also includes a 7V auxiliary subsurface zener reference. Designed for low-power applications, it operates on a quiescent current of only 20 µA and supports load currents up to 20 mA. The component is housed in an 8-pin SOIC package and is supplied in tape and reel packaging.

Voltage Reference Feature Summary

• Combines a high-precision 1.2V band-gap reference with a 7V auxiliary zener reference in a single compact package
• Features ultra-low power consumption with a guaranteed operating current of 20 µA
• Provides excellent long-term stability and low temperature cycling hysteresis
• Offers low dynamic impedance for easy operation from unregulated supplies

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Battery-powered instrumentation systems requiring low quiescent current
• Data acquisition systems needing stable voltage references
• Calibrators and precision regulators

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging configuration. Confirm that the IZ grade corresponds to the industrial temperature range and 20 ppm/°C drift specification as documented in the official datasheet. Ensure compatibility with 8-SOIC footprint requirements during procurement planning.

Voltage Reference Selection Notes

Select this component when a dual-output reference is required within a space-constrained design. The 1.2V output is suitable for low-voltage ADCs, while the 7V auxiliary output can serve biasing or level-shifting needs. Consider the 20 µA supply current constraint against total system power budgets and verify that the 8-SOIC package aligns with available PCB real estate.

Voltage Reference Part Context

The LT1034 belongs to the Linear Technology (now Analog Devices) family of micropower precision references. This series is distinguished by its combination of thin-film band-gap technology for the primary reference and subsurface zener technology for the secondary reference, offering a cost-effective solution for dual-rail or multi-reference applications without requiring separate discrete components.

Voltage Reference Replacement Considerations

LT1034IS8-2.5#TRPBF