Overview
The LM399AH#PBF is a precision shunt reference voltage regulator produced by Analog Devices Inc. This component is part of the LM399 series, known for its excellent temperature stability and minimal noise characteristics. The LM399AH#PBF features a stabilizing heater integrated with an active Zener diode on a monolithic substrate, which significantly reduces voltage changes with temperature variations. This makes it an ideal choice for applications requiring high precision and stability.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Reference Voltage (VZ) | - | - | 6.95 | - | V |
| Temperature Coefficient | - | - | 0.5 | - | ppm/°C |
| Dynamic Impedance | - | - | 1 | - | Ω |
| Noise (RMS) | - | - | 20 | - | μV |
| Initial Tolerance | - | - | 2% | - | - |
| Operating Current Range | - | 0.5 | - | 10 | mA |
| Supply Voltage Range | - | 9 | - | 40 | V |
| Operating Temperature Range | - | 0 | - | 70 | °C |
| Package Type | - | - | 4-Lead TO-46 Metal Can | - | - |
Key Features
- Excellent Temperature Stability: The LM399AH#PBF offers a guaranteed temperature coefficient of 0.5 ppm/°C, ensuring minimal voltage drift with temperature changes.
- Low Noise: The component has a guaranteed maximum noise of 20 μV RMS, making it suitable for high-precision applications.
- Wide Operating Current Range: It operates over a current range of 0.5 mA to 10 mA.
- High Long-Term Stability: The device exhibits excellent long-term stability, with a long-term drift of ±0.1% over 1000 hours.
- Integrated Stabilizing Heater: The heater is integrated with the active Zener diode on a monolithic substrate, enhancing temperature stability.
Applications
- Digital Voltmeters: Ideal for precision measurement instruments.
- Precision Calibration Equipment: Used in calibration and testing equipment due to its high accuracy.
- Current Sources: Suitable for applications requiring stable current references.
- Laboratory Measurement Equipment: Used in various laboratory instruments for precise voltage references.
- Industrial Monitor/Control Instruments: Applied in industrial control and monitoring systems where precision is crucial.
Q & A
- What is the reference voltage of the LM399AH#PBF?
The reference voltage of the LM399AH#PBF is 6.95 V.
- What is the temperature coefficient of the LM399AH#PBF?
The temperature coefficient is 0.5 ppm/°C.
- What is the maximum dynamic impedance of the LM399AH#PBF?
The maximum dynamic impedance is 1 Ω.
- What is the maximum noise level of the LM399AH#PBF?
The maximum noise level is 20 μV RMS.
- What is the initial tolerance of the LM399AH#PBF?
The initial tolerance is 2%.
- What is the operating current range of the LM399AH#PBF?
The operating current range is from 0.5 mA to 10 mA.
- What is the supply voltage range for the LM399AH#PBF?
The supply voltage range is from 9 V to 40 V.
- What is the operating temperature range of the LM399AH#PBF?
The operating temperature range is from 0°C to 70°C.
- In what package type is the LM399AH#PBF available?
The LM399AH#PBF is available in a 4-Lead TO-46 Metal Can package.
- What are some typical applications of the LM399AH#PBF?
Typical applications include digital voltmeters, precision calibration equipment, current sources, and laboratory measurement equipment.
