Overview
The LM4040A50IDBZR 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 LM4040A50IDBZR 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 dynamic impedance, ensuring stable output voltage over a broad range of operating currents and temperatures.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Output Voltage (VZ) | 5 | 4.95 | 5.05 | V |
| Output Voltage Tolerance (ΔVZ) | - | -2.5 | 2.5 | mV |
| Minimum Cathode Current (IZ,min) | 45 | 45 | 80 | μA |
| Average Temperature Coefficient (αVZ) | - | -100 | 100 | ppm/°C |
| Operating Temperature Range (TA) | - | -40 | 85 | °C |
| Package Type | SOT-23-3 | - | - | - |
| Body Size (Nominal) | 2.92mm × 1.30mm | - | - | - |
Key Features
- Fixed output voltage of 5V with tight output tolerances (maximum 0.1% for A grade, 0.2% for B grade, 0.5% for C grade, and 1.0% for D grade).
- Low temperature coefficient: 100 ppm/°C for A, B, and C grades, and 150 ppm/°C for D 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 certain models.
- 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 LM4040A50IDBZR?
The output voltage of the LM4040A50IDBZR is 5V.
- What are the typical output voltage tolerances for the LM4040 series?
The output voltage tolerances range from 0.1% for the A grade to 1.0% for the D grade.
- What is the minimum cathode current required for the LM4040A50IDBZR?
The minimum cathode current is 45μA.
- What is the operating temperature range for the LM4040A50IDBZR?
The operating temperature range is –40°C to 85°C.
- Does the LM4040A50IDBZR require an output capacitor for stability?
No, the LM4040A50IDBZR is stable with all capacitive loads and does not require an output capacitor.
- What are the package options available for the LM4040 series?
The LM4040 series is available in SOT-23-3 and SC-70 packages.
- What is the typical noise level of the LM4040A50IDBZR?
The typical output noise is 35μVRMS.
- What are some common applications of the LM4040 series?
Common applications include data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- What is the temperature coefficient of the LM4040A50IDBZR?
The temperature coefficient is 100 ppm/°C for the A, B, and C grades, and 150 ppm/°C for the D grade.
- Can the LM4040A50IDBZR be used in high-temperature environments?
Yes, certain models of the LM4040 series are characterized for operation up to 125°C.
