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LM285Z

LM285Z Description

The LM285Z is a high-performance, two-terminal voltage reference designed by National Semiconductor, a leading manufacturer in the power management integrated circuits (PMIC) category. This device is engineered to provide a stable and precise reference voltage for a variety of electronic applications. The LM285Z features an adjustable output type, allowing users to fine-tune the output voltage within a specified range. With a tolerance of ±2%, it ensures high accuracy and reliability in voltage regulation.

The LM285Z is capable of delivering an output current of up to 20 mA, making it suitable for applications that require moderate power levels. Its maximum output voltage is 5.3 V, while the minimum output voltage is fixed at 1.24 V. This wide voltage range provides flexibility in various circuit designs. The device also boasts a low temperature coefficient of 150 ppm/°C, ensuring minimal drift in reference voltage over a wide temperature range.

The LM285Z is designed for through-hole mounting, which is ideal for applications where robust mechanical stability is required. It operates with a cathode current of 45 µA, contributing to its low power consumption. The device is available in bulk packaging, making it suitable for large-scale production and integration into various electronic systems.

LM285Z Features

• Adjustable Output Type: The LM285Z offers an adjustable output voltage range from 1.24 V to 5.3 V, providing flexibility for different circuit requirements.
• High Accuracy: With a tolerance of ±2%, the LM285Z ensures precise voltage regulation, making it ideal for applications that demand high accuracy.
• Low Noise: The device exhibits low noise levels of 50 µVrms over the frequency range of 10 Hz to 10 kHz, ensuring clean and stable reference voltage.
• Low Temperature Coefficient: A temperature coefficient of 150 ppm/°C ensures minimal voltage drift over temperature variations, enhancing the stability of the reference voltage.
• Through-Hole Mounting: The through-hole mounting type provides robust mechanical stability, making it suitable for applications that require durable and reliable mounting.
• Low Power Consumption: The LM285Z operates with a cathode current of 45 µA, contributing to its low power consumption and efficiency.
• Wide Operating Current Range: The device can deliver an output current of up to 20 mA, making it suitable for a variety of applications with different power requirements.

LM285Z Applications

The LM285Z is well-suited for a range of applications where precise voltage reference is critical. Some of the key applications include:

• Analog-to-Digital Converters (ADCs): The high accuracy and low noise of the LM285Z make it an ideal reference voltage source for ADCs, ensuring precise and reliable conversions.
• Digital-to-Analog Converters (DACs): The stable reference voltage provided by the LM285Z helps in achieving accurate output signals in DACs.
• Power Supplies: The adjustable output voltage and low temperature coefficient make the LM285Z suitable for use in precision power supply designs.
• Instrumentation and Measurement Equipment: The device's high accuracy and stability are beneficial in precision measurement instruments, ensuring reliable and accurate readings.
• Medical Devices: The LM285Z's low noise and high accuracy make it suitable for use in medical devices where precise voltage reference is crucial for accurate measurements and diagnostics.

Conclusion of LM285Z

The LM285Z from National Semiconductor is a versatile and high-performance two-terminal voltage reference that offers a combination of adjustable output voltage, high accuracy, low noise, and low temperature coefficient. These features make it an ideal choice for a wide range of applications, including ADCs, DACs, power supplies, instrumentation, and medical devices. Its through-hole mounting type and low power consumption further enhance its suitability for various electronic systems. The LM285Z stands out in the market due to its robust performance and reliability, making it a preferred choice for engineers and designers in the electronics industry.