LT1034CZ-1.2#PBF

Voltage Reference Overview

The LT1034CZ-1.2#PBF is a dual shunt voltage reference integrated circuit manufactured by Analog Devices, formerly Linear Technology. It provides two fixed output voltages: 1.225V and 7V. The device utilizes an 8-pin SOIC package. Key electrical specifications include a maximum initial accuracy of ±1.2% for the 1.225V output and ±1% for the 7V output. The temperature coefficient is specified at 40ppm/°C. The unit operates within a supply voltage range of 2.5V to 40V and supports a maximum cathode current of 20mA.

Voltage Reference Feature Summary

• Dual-output architecture providing both 1.225V and 7V references in a single component
• High precision with low temperature drift characteristics suitable for demanding analog applications
• Shunt regulation topology allowing simple series resistor biasing

Voltage Reference Applications

• Analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage standards
• Precision measurement instrumentation circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'CZ' indicates the standard plastic SOIC-8 package variant rather than the 'IS8' or 'CS8' variants which may differ in thermal or mechanical specifications. Confirm RoHS compliance status as legacy Linear Technology parts often have complex environmental declarations depending on the manufacturing date code. Ensure the '#PBF' suffix denotes lead-free termination compatible with modern assembly processes.

Voltage Reference Selection Notes

Select this component when a design requires two distinct reference voltages from a single IC to save board space. The 1.225V output is ideal for driving ADCs requiring a low noise floor, while the 7V output can serve as a mid-supply reference or bias point. Consider the 40ppm/°C temperature coefficient against the application's required stability over the operating temperature range.

Voltage Reference Part Context

This part belongs to the LT1034 family of dual voltage references. Unlike single-output references, this series integrates two independent bandgap cores. The 'C' grade indicates commercial temperature range operation (0°C to 70°C), distinguishing it from industrial grades. The manufacturer transitioned from Linear Technology to Analog Devices following acquisition.

Voltage Reference Replacement Considerations

LT1034CS8-1.2#PBF: Verified equivalent offering identical electrical performance in an SOIC-8 surface mount package.