Overview
The LM4041QAIM3-1.2/NO is a precision voltage reference IC manufactured by Texas Instruments. This product belongs to the category of shunt voltage references and is designed to provide a stable 1.2V output. It is widely used in applications requiring high accuracy and low temperature coefficient. The LM4041QAIM3-1.2/NO is particularly suitable for portable electronics, industrial equipment, and automotive systems due to its compact size, low power consumption, and robust performance. Its unique selling points include excellent initial accuracy, low dynamic impedance, and a wide operating temperature range, making it a competitive choice for precision voltage reference applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 1.2 | V | ±0.1% initial accuracy |
| Operating Temperature Range | -40 to +125 | °C | |
| Dynamic Impedance | 0.6 | Ω | Typical at 1mA |
| Quiescent Current | 45 | µA | Typical |
| Package | SOT-23 | 3-pin | |
| Temperature Coefficient | 100 | ppm/°C | Typical |
| Load Regulation | 0.02 | %/mA | Typical |
| Line Regulation | 0.02 | %/V | Typical |
| Output Noise Voltage | 35 | µVRMS | 10Hz to 10kHz |
| Reference Voltage Tolerance | ±0.1 | % | At 25°C |
Key Features
- High Precision: Provides a stable 1.2V output with ±0.1% initial accuracy, ensuring reliable performance in precision applications.
- Low Dynamic Impedance: Dynamic impedance of 0.6Ω (typical) ensures stable output even with varying load conditions.
- Wide Operating Temperature Range: Operates reliably from -40°C to +125°C, making it suitable for harsh environments.
- Low Power Consumption: Quiescent current of 45µA (typical) minimizes power usage, ideal for battery-powered devices.
- Compact Package: Available in a 3-pin SOT-23 package, enabling use in space-constrained designs.
Applications
The LM4041QAIM3-1.2/NO is versatile and finds applications in various fields, including:
- Portable Electronics: Used in smartphones, tablets, and wearables for stable voltage reference in power management circuits.
- Industrial Equipment: Ensures precision voltage regulation in sensors, control systems, and data acquisition modules.
- Automotive Systems: Provides reliable voltage reference in infotainment systems, engine control units, and advanced driver-assistance systems (ADAS).
- Test and Measurement: Ideal for calibration and precision measurement equipment due to its high accuracy and low noise.
Q & A
1. What is the output voltage of the LM4041QAIM3-1.2/NO?
The output voltage is 1.2V with an initial accuracy of ±0.1%.
2. What is the operating temperature range of this IC?
The operating temperature range is -40°C to +125°C.
3. What is the typical dynamic impedance of the LM4041QAIM3-1.2/NO?
The typical dynamic impedance is 0.6Ω at 1mA.
4. Is this IC suitable for battery-powered devices?
Yes, its low quiescent current of 45µA makes it ideal for battery-powered applications.
5. What package does the LM4041QAIM3-1.2/NO come in?
It is available in a 3-pin SOT-23 package.
6. What is the temperature coefficient of this voltage reference?
The typical temperature coefficient is 100 ppm/°C.
7. Can this IC be used in automotive applications?
Yes, it is suitable for automotive systems due to its wide operating temperature range and robust performance.
8. What is the typical output noise voltage?
The typical output noise voltage is 35µVRMS from 10Hz to 10kHz.
9. How does the LM4041QAIM3-1.2/NO handle load regulation?
It has a typical load regulation of 0.02%/mA.
10. What is the line regulation of this IC?
The typical line regulation is 0.02%/V.
