The LM385AM-1.2 is a micropower voltage reference designed by National Semiconductor (now Texas Instruments). It is a two-terminal bandgap reference diode providing a stable 1.235V output voltage with very low power consumption. This voltage reference is ideal for battery-powered systems and other low-power applications.

Applications:

• Battery-Powered Instrumentation: Provides a stable voltage reference in low-power measurement devices.
• Portable Data Acquisition Systems: Supplies a precise reference voltage for data converters in portable systems.
• Analog-to-Digital Converters (ADCs): Used as a voltage reference for ADCs, ensuring accurate conversion.
• Digital-to-Analog Converters (DACs): Provides a reference voltage for DACs.
• Precision Current Sources: Can be used in circuits to create stable current sources.

Features:

• 1.235V Output Voltage: Provides a fixed and precise 1.235V reference voltage.
• Low Power Consumption: Consumes minimal power, making it ideal for battery-powered applications.
• Wide Operating Current Range: Operates effectively over a broad range of current levels.
• Low Dynamic Impedance: Maintains a stable output voltage under varying load conditions.
• Tight Initial Tolerance: Offers high accuracy in the initial output voltage.
• Stable Over Temperature: Maintains stable voltage output across varying temperatures.

Benefits:

• Precise Voltage Reference: Provides a highly accurate and stable 1.235V reference voltage.
• Energy Efficient: Low power consumption extends battery life in portable applications.
• Reliable Performance: Maintains stable operation across varying current and temperature conditions.
• Versatile Application: Suitable for a wide range of voltage reference applications.
• Simplified Design: Requires minimal external components, simplifying circuit design.

Additional Details:

The LM385AM-1.2 typically comes in a small package such as a TO-92, making it easy to integrate into compact electronic designs. It's often used in series with a resistor to limit the current and ensure proper operation. This voltage reference is particularly valuable in applications where accuracy and low power consumption are critical. The tight initial tolerance and stability over temperature ensure consistent performance. Proper bypassing with capacitors is recommended to minimize noise and maintain stability. The LM385AM-1.2 is a robust and dependable choice for creating a stable voltage reference in a variety of sensitive electronic systems, allowing for precise analog measurements and conversions.