Overview
The LM4040A30IDBZRG4 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 LM4040A30IDBZRG4 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 a broad range of operating currents and temperatures.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Output Voltage (VZ) | 3 | 2.997 | 3.003 | V |
| Output Voltage Tolerance (ΔVZ) | 0 | -3 | 3 | mV |
| Minimum Cathode Current (IZ,min) | 45 | 45 | 80 | μA |
| Average Temperature Coefficient (αVZ) | ±15 | ±15 | ±100 | ppm/°C |
| Operating Temperature Range | -40°C to 85°C | -40°C | 85°C | °C |
| Package Type | SOT-23-3 | |||
| Body Size | 2.92mm × 1.30mm |
Key Features
- Fixed output voltage of 3V with tight output tolerances and low temperature coefficient.
- Low output noise: 35μVRMS typical.
- Wide operating current range: 45μA to 15mA.
- Stable with all capacitive loads; no output capacitor required.
- Available in extended temperature range: –40°C to 125°C.
- Space-saving SOT-23-3 package.
- Low dynamic impedance.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the output voltage of the LM4040A30IDBZRG4?
The output voltage of the LM4040A30IDBZRG4 is 3V.
- What is the temperature coefficient of the LM4040A30IDBZRG4?
The temperature coefficient is ±15 ppm/°C.
- What is the minimum cathode current required for the LM4040A30IDBZRG4?
The minimum cathode current is 45μA.
- Does the LM4040A30IDBZRG4 require an output capacitor for stability?
No, the LM4040A30IDBZRG4 is stable with all capacitive loads and does not require an output capacitor.
- What is the operating temperature range of the LM4040A30IDBZRG4?
The operating temperature range is –40°C to 85°C.
- What package type is the LM4040A30IDBZRG4 available in?
The LM4040A30IDBZRG4 is available in the SOT-23-3 package.
- What are some common applications of the LM4040A30IDBZRG4?
Common applications include data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- What is the typical output noise of the LM4040A30IDBZRG4?
The typical output noise is 35μVRMS.
- What is the dynamic impedance of the LM4040A30IDBZRG4?
The LM4040A30IDBZRG4 has low dynamic impedance.
- How does the LM4040A30IDBZRG4 achieve its precision output voltage?
The LM4040A30IDBZRG4 uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to achieve its precision output voltage.
