Overview
The LM4040A50IDBZT 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 LM4040A50IDBZT offers a fixed output voltage of 5V with high accuracy and stability, making it suitable for various precision voltage reference needs. It is packaged in a space-saving SC-70 or SOT-23-3 package, which is ideal for portable and compact designs.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Output Voltage (VZ) | 5 | - | - | V |
| Output Voltage Tolerance (ΔVZ) | - | -2.5 | 2.5 | mV |
| Minimum Cathode Current (IZ,min) | 45 | - | 80 | μA |
| Maximum Cathode Current (IZ,max) | - | - | 15 | mA |
| Average Temperature Coefficient (αVZ) | ±20 | - | ±100 | ppm/°C |
| Operating Temperature Range (TA) | - | -40 | 85 | °C |
| Package Type | SC-70, SOT-23-3 | - | - | - |
| Body Size (Nominal) | 2.00mm × 1.25mm (SC70), 2.92mm × 1.30mm (SOT-23-3) | - | - | - |
Key Features
- Fixed output voltage of 5V with tight output tolerances and low temperature coefficient (maximum 0.1% for A grade, 0.2% for B grade, 0.5% for C grade, and 1.0% for D grade).
- 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.
- Space-saving SC-70 and SOT-23-3 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 LM4040A50IDBZT? The output voltage of the LM4040A50IDBZT is 5V.
- What are the available packages for the LM4040A50IDBZT? The LM4040A50IDBZT is available in SC-70 and SOT-23-3 packages.
- What is the minimum cathode current required for the LM4040A50IDBZT? The minimum cathode current is 45μA typical.
- Does the LM4040A50IDBZT require an output capacitor? No, the LM4040A50IDBZT is stable with all capacitive loads and does not require an output capacitor.
- What is the operating temperature range for the LM4040A50IDBZT? The operating temperature range is –40°C to 85°C for the 'I' version and –40°C to 125°C for the 'Q' version.
- What are the key features of the LM4040A50IDBZT in terms of noise and temperature stability? The LM4040A50IDBZT features low output noise (35μVRMS typical) and a low temperature coefficient (maximum 0.1% for A grade).
- Can the LM4040A50IDBZT be used in automotive electronics? Yes, the LM4040A50IDBZT can be used in automotive electronics due to its robust specifications and temperature range.
- 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.
- How does the LM4040A50IDBZT achieve its high accuracy? The LM4040A50IDBZT achieves high accuracy through fuse and Zener-zap reverse breakdown voltage trim during wafer sort.
- Is the LM4040A50IDBZT suitable for portable applications? Yes, the LM4040A50IDBZT is suitable for portable applications due to its low current consumption and small package size).
