LT1004CH-2.5

Voltage Reference Overview

The LT1004CH-2.5 is a micropower voltage reference from Analog Devices Inc., functioning as a two-terminal bandgap reference diode. It provides a fixed output voltage of 2.5V with an initial accuracy of ±20mV and a guaranteed temperature coefficient of 20ppm/°C. The device operates at a minimum current of 10µA and can handle up to 20mA. It features very low dynamic impedance and wide-band noise characteristics, designed for high accuracy and excellent temperature stability in portable and battery-operated systems.

Voltage Reference Feature Summary

• Guaranteed ±20mV initial accuracy for the 2.5V variant
• Micropower operation with a guaranteed 10µA operating current
• Very low dynamic impedance for stable performance
• Pin-for-pin replacement for LM185/LM385 series references

Voltage Reference Applications

• Portable meter references
• Portable test instruments
• Battery-operated systems
• Current loop instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix 'CH' against official documentation, as standard listings typically use 'CS8', 'IS8', 'CZ', or 'IZ'. Confirm package type (SOIC-8 vs TO-92) and temperature range (Commercial vs Industrial) match design requirements. Ensure sourcing from authorized distributors to guarantee authenticity and traceability.

Voltage Reference Selection Notes

Select this component when system constraints require low power consumption alongside high precision. It is suitable for applications where previous accuracy levels demanded excessive power or trimming. Consider the 2.5V output for general-purpose references or 1.2V for lower voltage needs. Evaluate thermal management if operating near maximum current limits.

Voltage Reference Part Context

The LT1004 series represents a line of micropower voltage references optimized for key parameters through advanced design and processing. It offers improved accuracy over legacy LM185/LM385 devices without increasing power consumption. The family includes various packages and temperature grades to suit diverse industrial and commercial applications.

Voltage Reference Replacement Considerations

LT1004CS8-2.5#PBF: 8-Lead Plastic SO, 0°C to 70°C

Voltage Reference FAQ

What is the minimum operating current for the LT1004?

The LT1004 has a guaranteed minimum operating current of 10µA.

How does the LT1004 compare to the LM185/LM385?

It serves as a pin-for-pin replacement with improved accuracy specifications and better performance at low power levels.