Analog Devices Inc. LT1004CS8-2.5#TRPBF

LT1004CS8-2.5#TRPBF Voltage Reference Product Summary

The LT1004CS8-2.5#TRPBF, manufactured by Analog Devices Inc., stands as a precision fixed shunt voltage reference in an industry-standard 8-lead SOIC package. This model belongs to the LT1004 series—a family of bandgap reference diodes designed to provide highly accurate and stable reference voltages with low power consumption. The LT1004CS8-2.5#TRPBF offers a fixed 2.5V output and guarantees an initial accuracy of ±0.8%, making it suitable for precision analog, measurement, and power management applications where stable voltage references are critical.

The product is especially notable for its ability to deliver specified performance over standard commercial temperature ranges, making it an excellent choice for instrumentation, portable meters, current loop systems, and battery-powered equipment.

Main Electrical Specs and Performance Features of the LT1004CS8-2.5#TRPBF

The LT1004CS8-2.5#TRPBF sets a benchmark for micropower shunt references in terms of accuracy and power efficiency. It features a maximum operating current of 20mA and can function at currents as low as 10μA, supporting low power operation in demanding applications. With a reverse breakdown voltage precisely set at 2.5V, this device ensures consistent reference levels across varied load conditions.

A standout parameter is its low temperature coefficient, specified as 20ppm/°C, which translates to minimal deviation of the reference voltage with changes in ambient temperature. Additionally, the device showcases very low dynamic impedance (down to 0.6Ω at 100μA), making the output stable against variations in shunt current.

Long-term drift is tightly controlled, with long-term stability ratings of 20ppm per 1000 hours, an essential characteristic for calibration-critical systems. Noise performance is also well-defined, with wideband noise of 120μVrms across the 10Hz to 10kHz range—a desirable feature for low-noise and high-resolution analog circuits.

LT1004CS8-2.5#TRPBF Packaging Formats and Installation Guidelines

The LT1004CS8-2.5#TRPBF is delivered in an 8-lead small-outline SOIC package with a standard 3.90mm overall width, facilitating straightforward integration into dense circuit boards and surface-mount assembly processes. The device supports a working ambient temperature range of 0°C to +70°C, targeting commercial-grade applications.

Thermal performance is governed by the SOIC package characteristics, and engineers should account for the 120°C/W junction-to-ambient thermal resistance in power dissipation calculations. The pin configuration supports flexibility, with unused pins available to maximize layout efficiency without affecting device operation.

Common Use Cases and Engineering Application Examples for LT1004CS8-2.5#TRPBF

The LT1004CS8-2.5#TRPBF finds utility in a broad spectrum of precision and low-power systems. Some primary application examples include:

Portable and precision test instruments, where battery efficiency and reference stability dictate overall system accuracy.

Cold junction compensation for thermocouples, leveraging the predictable temperature behavior and low drift for reliable thermoelectric measurements.

Current loop instrumentation, particularly 4-20mA analog transmitters, benefiting from the low dynamic impedance and wide operating current range.

High-stability power supplies, such as voltage supervisors or regulators, where the reference dictates output regulation performance.

Low-voltage precision references supplied directly from 1.5V or 3V batteries, particularly useful in portable and handheld devices.

The LT1004CS8-2.5#TRPBF’s micropower operation allows engineers to implement reference circuits in ultra-low current environments, with straightforward integration owing to its two-terminal shunt configuration.

Reliability Metrics, Thermal Characteristics, and Regulatory Standards for LT1004CS8-2.5#TRPBF

Designers selecting the LT1004CS8-2.5#TRPBF can be assured of its proven reliability in the field. The product offers robust tolerance to reverse current up to 30mA, with an absolute maximum operating junction temperature rated at 150°C. The SO8 package supports standard soldering profiles up to 300°C for 10 seconds.

From a compliance standpoint, the LT1004CS8-2.5#TRPBF is RoHS3 compliant (lead-free and environmentally safe) and unaffected by REACH regulations. Moisture sensitivity level is rated at MSL 1, highlighting unlimited shelf life under typical storage conditions. These credentials simplify product qualification for safety- and eco-regulated markets.

Alternative or Substitute Options for LT1004CS8-2.5#TRPBF

For engineers considering multi-source qualification or long-term sourcing risk mitigation, several equivalent or replacement options for the LT1004CS8-2.5#TRPBF should be evaluated. The LT1004 series encompasses variants such as the LT1004CZ-2.5#PBF (3-lead TO-92), LT1004MH-2.5#PBF (2-lead TO-46 metal can), and temperature-enhanced versions (I-grade and M-grade) for industrial and military applications.

The LT1004CS8-2.5#TRPBF is also a direct, pin-compatible replacement for legacy LM185/LM385 series voltage references but provides improved accuracy and lower temperature drift. Design engineers should carefully match accuracy, temperature coefficient, and package type when considering substitutes to maintain system-level performance.

Conclusion

The LT1004CS8-2.5#TRPBF from Analog Devices is a best-in-class micropower voltage reference, merging precision, reliability, and low-power design into a versatile package for modern analog and mixed-signal systems. Its robust electrical characteristics, wide application suitability, and strong compliance credentials position it as a top choice for engineers seeking dependable voltage references for new designs or legacy updates. By understanding the full spectrum of LT1004CS8-2.5#TRPBF features—from performance to packaging and available equivalents—procurement and engineering teams can ensure the optimal solution for their system requirements.