規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| ReferenceType | Shunt |
| OutputType | Fixed |
| Voltage-Output(Min/Fixed) | 2.5V |
| Current-Output | 20 mA |
| Tolerance | ±1.5% |
| TemperatureCoefficient | 20ppm/°C Typical |
| Noise-10Hzto10kHz | 120µVrms |
| Current-Cathode | 20 µA |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
概述
Description
The LM285DR-2-5 is a precision voltage reference diode designed for applications requiring stable, low-power voltage references. It operates with a nominal output voltage of 2.5 volts. Packaged in a small surface-mount SOIC-8 configuration, this component is ideal for space-constrained designs. The LM285DR-2-5 is known for its low temperature coefficient, ensuring consistent performance across varying temperatures. It features low output noise and excellent long-term stability, making it suitable for precision analog and digital applications. The device operates over a wide current range, typically from 10 µA to 20 mA, and provides excellent regulation over both current and temperature variations. It is commonly used in power supplies, data acquisition systems, and portable devices where battery life and reliability are critical. The LM285DR-2-5 is a versatile and reliable choice for engineers needing a stable voltage reference in their designs.
Equivalent
The LM285DR-2.5 is a precision voltage reference. Equivalent products include:
1. TL431 (Texas Instruments) - Adjustable Precision Shunt Regulator.
2. LM336-2.5 (ON Semiconductor) - 2.5V Voltage Reference.
3. REF192 (Analog Devices) - Precision Micropower 2.5V Voltage Reference.
4. ADR291 (Analog Devices) - Low Power 2.5V Precision Reference.
5. MCP1525 (Microchip Technology) - 2.5V Voltage Reference.
Always verify specifications and pin compatibility before substituting.
1. TL431 (Texas Instruments) - Adjustable Precision Shunt Regulator.
2. LM336-2.5 (ON Semiconductor) - 2.5V Voltage Reference.
3. REF192 (Analog Devices) - Precision Micropower 2.5V Voltage Reference.
4. ADR291 (Analog Devices) - Low Power 2.5V Precision Reference.
5. MCP1525 (Microchip Technology) - 2.5V Voltage Reference.
Always verify specifications and pin compatibility before substituting.
Features
The LM285DR-2-5 is a precision voltage reference device that offers several key features:
1. Voltage Reference: Provides a stable 2.5V reference voltage, ideal for use in precision applications.
2. Temperature Stability: Offers excellent temperature stability, with a maximum drift of 20 ppm/°C, ensuring consistent performance across varying temperatures.
3. Low Power Consumption: Operates with low quiescent current, making it suitable for battery-powered and low-power applications.
4. Wide Operating Range: Functions effectively over a broad temperature range from -40°C to +85°C, accommodating various environmental conditions.
5. Tolerance: Typically features tight initial voltage tolerance, often around ±1%.
6. Package: Comes in a standard SOIC-8 package, making it easy to integrate onto PCBs.
7. Applications: Commonly used in data acquisition systems, power supplies, and instrumentation where precision voltage references are required.
8. Stability: Designed to offer high reliability and stability over long-term use.
These features make the LM285DR-2-5 a versatile choice for applications requiring precise voltage regulation.
1. Voltage Reference: Provides a stable 2.5V reference voltage, ideal for use in precision applications.
2. Temperature Stability: Offers excellent temperature stability, with a maximum drift of 20 ppm/°C, ensuring consistent performance across varying temperatures.
3. Low Power Consumption: Operates with low quiescent current, making it suitable for battery-powered and low-power applications.
4. Wide Operating Range: Functions effectively over a broad temperature range from -40°C to +85°C, accommodating various environmental conditions.
5. Tolerance: Typically features tight initial voltage tolerance, often around ±1%.
6. Package: Comes in a standard SOIC-8 package, making it easy to integrate onto PCBs.
7. Applications: Commonly used in data acquisition systems, power supplies, and instrumentation where precision voltage references are required.
8. Stability: Designed to offer high reliability and stability over long-term use.
These features make the LM285DR-2-5 a versatile choice for applications requiring precise voltage regulation.
Pinout
The LM285DR-2.5 is a 3-pin voltage reference IC designed to provide a stable 2.5V output. It typically comes in a surface-mount SOIC-8 package, but only three pins are actively used for its main function. Here's a brief overview of the pin functions:
1. Pin 1 (V+ or Cathode): This is the positive input terminal where the supply voltage is applied.
2. Pin 2 (V- or Anode): This is the negative terminal, equivalent to the ground or reference point in your circuit.
3. Pin 3 (Vout): This pin provides the 2.5V reference voltage output.
The LM285DR-2.5 is commonly used for precision voltage regulation and reference applications in circuits requiring a stable reference voltage. Its design allows it to provide consistent performance over a wide range of temperatures and input voltages.
1. Pin 1 (V+ or Cathode): This is the positive input terminal where the supply voltage is applied.
2. Pin 2 (V- or Anode): This is the negative terminal, equivalent to the ground or reference point in your circuit.
3. Pin 3 (Vout): This pin provides the 2.5V reference voltage output.
The LM285DR-2.5 is commonly used for precision voltage regulation and reference applications in circuits requiring a stable reference voltage. Its design allows it to provide consistent performance over a wide range of temperatures and input voltages.
Manufacturer
The LM285DR-2-5 is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and integrated circuits, which are used in a wide range of electronic devices. TI is known for its expertise in analog, embedded processing, and digital signal processing (DSP) technologies. The company serves various industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Texas Instruments is recognized for its innovation and contributions to the electronics sector, consistently providing components that enhance the functionality and efficiency of electronic systems.
Application
The LM285DR-2.5 is a precision voltage reference, typically used in applications requiring stable voltage regulation. Key application areas include:
1. Data Acquisition Systems: Ensures accurate and stable reference voltage for ADCs.
2. Power Supply Monitoring: Provides a stable reference voltage to monitor and adjust power supply levels.
3. Instrumentation: Offers precise voltage reference for measurement and control circuits.
4. Battery Management Systems: Ensures reliable voltage reference in battery-operated devices.
5. Calibration Equipment: Used in devices that require accurate calibration of measurement tools.
6. Consumer Electronics: Provides stable voltage references in devices like smartphones and tablets.
7. Communication Systems: Ensures reliable performance in signal processing equipment.
1. Data Acquisition Systems: Ensures accurate and stable reference voltage for ADCs.
2. Power Supply Monitoring: Provides a stable reference voltage to monitor and adjust power supply levels.
3. Instrumentation: Offers precise voltage reference for measurement and control circuits.
4. Battery Management Systems: Ensures reliable voltage reference in battery-operated devices.
5. Calibration Equipment: Used in devices that require accurate calibration of measurement tools.
6. Consumer Electronics: Provides stable voltage references in devices like smartphones and tablets.
7. Communication Systems: Ensures reliable performance in signal processing equipment.
Package
The LM285DR-2-5 is typically available in an SOIC-8 package type. The "DR" suffix indicates a specific variant of this package, commonly used for surface-mount applications.
