LT1034IZ-1.2#PBF

Voltage Reference Overview

The LT1034IZ-1.2#PBF is a micropower precision dual voltage reference IC manufactured by Analog Devices Inc., housed in an 8-pin SOIC package. It integrates a primary 1.2V thin-film band-gap reference and a secondary 7V subsurface zener auxiliary reference. The device operates with a quiescent current of 20µA and supports cathode currents up to 20mA. Key electrical specifications include a guaranteed temperature drift of 20ppm/°C for the 1.2V output, a dynamic impedance of 1Ω, and a low-frequency noise of 4µVp-p (0.1Hz to 10Hz). The component functions within a temperature range of -40°C to 85°C.

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 only 20µA operating current while maintaining high stability
• Provides excellent thermal performance with guaranteed low temperature drift and minimal hysteresis during cycling

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• High-resolution digital-to-analog converter (DAC) biasing
• Battery-powered instrumentation requiring extended life and stable references
• Data acquisition systems needing low-noise voltage standards

Voltage Reference Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure correct tolerance and package variants. Confirm RoHS compliance status as historical data indicates potential non-compliance for certain manufacturing batches. Validate that the 8-SOIC package dimensions match your PCB footprint requirements before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when application requirements demand simultaneous availability of two distinct reference voltages from a single source. The 1.2V output is suitable for low-voltage precision circuits, while the 7V auxiliary output serves less critical applications. Ensure the design accommodates the specified 20µA minimum operating current to maintain regulation accuracy and stability under all load conditions.

Voltage Reference Part Context

This part belongs to the LT1034 family of micropower precision regulators produced by Analog Devices Inc. The series is designed to provide stable voltage references for sensitive electronic circuits. The LT1034 combines multiple reference technologies to offer flexibility in system design, allowing designers to utilize both precision band-gap and zener characteristics within one integrated circuit solution.

Voltage Reference Replacement Considerations

LT1034CS8-1.2#PBF: Available in commercial temperature grade with identical pinout and electrical characteristics.