Overview
The LM4040B20IDBZR is a precision micropower shunt voltage reference produced by Texas Instruments. Designed for applications requiring stable and accurate voltage references, this component is widely used in various electronic systems. Its market positioning targets industries such as consumer electronics, industrial automation, and automotive electronics, where precise voltage regulation is critical. The LM4040B20IDBZR stands out for its low dynamic impedance, low noise, and high accuracy, making it a competitive choice for designers seeking reliable voltage references.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 2.048 | V | Fixed |
| Tolerance | ±0.5 | % | B Grade |
| Temperature Coefficient | 100 | ppm/°C | |
| Operating Temperature Range | -40 to 85 | °C | |
| Package | SOT-23-3 | Surface Mount | |
| Noise (10Hz to 10Hz) | 35 | µVrms | |
| Minimum Operating Current | 100 | µA | |
| Maximum Shunt Current | 15 | mA |
Key Features
- Precision voltage reference with a fixed output of 2.048 V.
- Low temperature coefficient ensures stability across a wide temperature range.
- Low noise and low dynamic impedance for reliable performance.
- Compact SOT-23-3 package suitable for space-constrained applications.
- No external capacitor required for stable operation.
Applications
The LM4040B20IDBZR is ideal for applications requiring precise voltage references, such as power supplies, data converters, and industrial control systems. Its stability and accuracy make it suitable for use in portable devices, automotive electronics, and consumer electronics. Additionally, its low power consumption and small form factor are advantageous for battery-powered and compact designs.
Q & A
1. What is the output voltage of the LM4040B20IDBZR?
The output voltage is fixed at 2.048 V.
2. What is the tolerance of the output voltage?
The tolerance is ±0.5% for the B grade version.
3. What is the operating temperature range?
The component operates within a temperature range of -40°C to 85°C.
4. Does the LM4040B20IDBZR require an external capacitor?
No, it operates stably without an external capacitor.
5. What is the package type of this component?
It is available in a compact SOT-23-3 surface-mount package.
6. What is the minimum operating current?
The minimum operating current is 100 µA.
7. What is the maximum shunt current?
The maximum shunt current is 15 mA.
8. What is the noise level of the LM4040B20IDBZR?
The noise level is 35 µVrms from 10Hz to 10Hz.
9. Is the LM4040B20IDBZR suitable for automotive applications?
Yes, its stability and accuracy make it suitable for automotive electronics.
10. What is the temperature coefficient of the output voltage?
The temperature coefficient is 100 ppm/°C.
