Texas Instruments

LM285D-1-2

LM285D-1-2 Description

The LM285D-1-2 from Texas Instruments is a high-precision shunt voltage reference designed for applications requiring stable, low-noise voltage regulation. This fixed-output reference delivers a 1.235V nominal voltage with a tight ±1% tolerance, ensuring reliable performance in precision circuits. With a 20 mA output current capability and a low temperature coefficient of 20ppm/°C (typical), it maintains stability across varying environmental conditions. The device features a low cathode current of 10 µA, making it suitable for power-sensitive designs. Packaged in an 8-SOIC tube, it is RoHS3 compliant and REACH unaffected, meeting stringent environmental standards.

LM285D-1-2 Features

• Fixed 1.235V output with ±1% tolerance for high accuracy.
• Low temperature coefficient (20ppm/°C typical) ensures stability over temperature fluctuations.
• Low noise performance (60µVrms, 10Hz to 10kHz), ideal for sensitive analog circuits.
• Shunt reference topology simplifies integration into existing designs.
• Low cathode current (10 µA) minimizes power consumption.
• Surface-mount 8-SOIC package for compact PCB layouts.
• RoHS3 compliant and REACH unaffected, adhering to environmental regulations.

LM285D-1-2 Applications

The LM285D-1-2 excels in precision applications requiring stable voltage references, such as:

• Data acquisition systems (ADCs, DACs) where low noise and high accuracy are critical.
• Portable and battery-powered devices due to its low quiescent current.
• Industrial control systems requiring stable references for sensors and instrumentation.
• Power management circuits where voltage regulation is essential.
• Medical electronics demanding reliable performance in noise-sensitive environments.

Conclusion of LM285D-1-2

The LM285D-1-2 is a robust, high-performance shunt voltage reference offering low noise, excellent temperature stability, and low power consumption. Its 1.235V fixed output and ±1% tolerance make it ideal for precision applications in industrial, medical, and portable electronics. While it is currently in Last Time Buy status, its proven reliability and compliance with environmental standards ensure it remains a viable choice for legacy and new designs requiring stable voltage references.