Overview
The LM4040C30IDBZRG4 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 LM4040C30IDBZRG4 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 wide range of operating currents and temperatures.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | 3 | 2.985 | 3.015 | V |
| Reverse Breakdown Voltage Tolerance (ΔVZ) | 0 | -15 | 15 | 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 (Nominal) | 2.92mm × 1.30mm |
Key Features
- Fixed output voltage of 3V with tight output tolerances (0.5% maximum for C grade)
- Low temperature coefficient (100 ppm/°C for C grade)
- 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 (for Q grade)
- Space-saving SOT-23-3 and SC70 packages
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the fixed output voltage of the LM4040C30IDBZRG4?
The fixed output voltage of the LM4040C30IDBZRG4 is 3V.
- What is the temperature coefficient of the LM4040C30IDBZRG4?
The temperature coefficient is ±100 ppm/°C for the C grade.
- What is the minimum cathode current required for the LM4040C30IDBZRG4?
The minimum cathode current is 45μA.
- Does the LM4040C30IDBZRG4 require an output capacitor for stability?
No, the LM4040C30IDBZRG4 is stable with all capacitive loads and does not require an output capacitor.
- What are the available package types for the LM4040C30IDBZRG4?
The device is available in SOT-23-3 and SC70 packages.
- What is the operating temperature range for the LM4040C30IDBZRG4?
The operating temperature range is –40°C to 85°C for the I grade and –40°C to 125°C for the Q grade.
- What are some common applications of the LM4040C30IDBZRG4?
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 LM4040C30IDBZRG4?
The typical output noise is 35μVRMS.
- What is the maximum initial accuracy of the LM4040C30IDBZRG4 for the C grade?
The maximum initial accuracy for the C grade is 0.5%.
- Can the LM4040C30IDBZRG4 operate over a wide range of operating currents?
