Overview
The LM4040B30IDBZRG4 is a precision micropower shunt voltage reference from Texas Instruments. This device is part of the LM4040 series, known for its versatility and ease of use across a wide range of applications. The LM4040B30IDBZRG4 offers a fixed output voltage of 3V, making it suitable for various precision voltage reference needs. It is characterized by its tight output tolerances, low temperature coefficient, and low output noise, ensuring stable operation over different operating currents and temperatures.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Max | |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | IZ = 100μA, 25°C | V | 2.97 | 3 | 3.03 |
| Reverse Breakdown Voltage Tolerance (ΔVZ) | IZ = 100μA, 25°C | mV | -6 | 0 | 6 |
| Minimum Cathode Current (IZ,min) | 25°C | μA | 45 | 75 | 80 |
| Average Temperature Coefficient of Reverse Breakdown Voltage (αVZ) | IZ = 10mA, 25°C | ppm/°C | ±20 | ±20 | ±100 |
| Operating Temperature Range | °C | -40 | 85 | ||
| Package | SOT-23-3 |
Key Features
- Fixed output voltage of 3V with tight output tolerances (0.2% maximum for B grade) and low temperature coefficient (100 ppm/°C).
- Low output noise: 35μVRMS typical.
- Wide operating current range: 45μA typical to 15mA.
- Stable with all capacitive loads; no output capacitor required.
- Available in extended temperature range: –40°C to 125°C for certain models, and –40°C to 85°C for the LM4040B30IDBZRG4.
- Space-saving SOT-23-3 package.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the output voltage of the LM4040B30IDBZRG4?
The output voltage of the LM4040B30IDBZRG4 is 3V.
- What is the temperature coefficient of the LM4040B30IDBZRG4?
The temperature coefficient is 100 ppm/°C for the B grade.
- What is the minimum cathode current required for the LM4040B30IDBZRG4?
The minimum cathode current is 45μA typical.
- Does the LM4040B30IDBZRG4 require an output capacitor for stability?
No, the LM4040B30IDBZRG4 is stable with all capacitive loads and does not require an output capacitor.
- What is the operating temperature range for the LM4040B30IDBZRG4?
The operating temperature range is –40°C to 85°C.
- In what package is the LM4040B30IDBZRG4 available?
The LM4040B30IDBZRG4 is available in the SOT-23-3 package.
- What are some typical applications for the LM4040B30IDBZRG4?
Typical applications include data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- How does the LM4040B30IDBZRG4 handle noise?
The LM4040B30IDBZRG4 has low output noise, typically 35μVRMS.
- What is the maximum operating current for the LM4040B30IDBZRG4?
The maximum operating current is 15mA.
- Is the LM4040B30IDBZRG4 suitable for portable applications?
Yes, due to its low current requirements and space-saving package, it is suitable for portable applications.
