Overview
The LM4040C50IDBZRG4 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 LM4040C50IDBZRG4 offers a fixed output voltage of 5V, 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 | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Output Voltage (VZ) | 5 | 4.975 | 5.025 | V |
| Output Voltage Tolerance (ΔVZ) | 0 | -25 | 25 | 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 | mm |
Key Features
- Fixed output voltage of 5V 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 SC-70 packages
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Module
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the output voltage of the LM4040C50IDBZRG4?
The output voltage of the LM4040C50IDBZRG4 is 5V.
- What is the temperature coefficient of the LM4040C50IDBZRG4?
The temperature coefficient is ±100 ppm/°C for the C grade.
- What is the minimum cathode current required for the LM4040C50IDBZRG4?
The minimum cathode current is 45μA.
- Does the LM4040C50IDBZRG4 require an output capacitor for stability?
No, the LM4040C50IDBZRG4 is stable with all capacitive loads and does not require an output capacitor.
- What are the available package types for the LM4040C50IDBZRG4?
The LM4040C50IDBZRG4 is available in SOT-23-3 and SC-70 packages.
- What is the operating temperature range for the LM4040C50IDBZRG4?
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 for the LM4040C50IDBZRG4?
Common applications include data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- How does the LM4040C50IDBZRG4 handle noise?
The LM4040C50IDBZRG4 has low output noise, typically 35μVRMS.
- What is the typical operating current range for the LM4040C50IDBZRG4?
The typical operating current range is from 45μA to 15mA.
- Is the LM4040C50IDBZRG4 suitable for portable applications?
