Overview
The LM4040A25IDBZT is a precision micropower shunt voltage reference from Texas Instruments. This device is part of the LM4040 series, known for its versatility and high accuracy. The LM4040A25IDBZT specifically provides a fixed output voltage of 2.5V, making it suitable for a wide range of applications that require stable and precise voltage references.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Output Voltage (VZ) | 2.5 | 2.475 | 2.525 | V |
| Output Voltage Tolerance (ΔVZ) | ±0.1% | -2.5mV | 2.5mV | mV |
| Temperature Coefficient (αVZ) | ±100ppm/°C | -100ppm/°C | 100ppm/°C | ppm/°C |
| Minimum Cathode Current (IZ,min) | 45μA | 45μA | 80μA | μA |
| Operating Current Range | 45μA to 15mA | 45μA | 15mA | μA |
| Output Noise | 35μVRMS | - | - | μVRMS |
| Operating Temperature Range | -40°C to 125°C | -40°C | 125°C | °C |
Key Features
- Fixed output voltage of 2.5V with tight output tolerances and low temperature coefficient.
- Maximum output voltage tolerance of ±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 to 15mA.
- Stable with all capacitive loads; no output capacitor required.
- Available in extended temperature range: -40°C to 125°C.
Applications
- Data-Acquisition Systems
- Energy Infrastructure
- Analog Input Modules
- Field Transmitters
- Precision Audio
- Automotive Electronics
Q & A
- What is the output voltage of the LM4040A25IDBZT?
The output voltage of the LM4040A25IDBZT is 2.5V.
- What are the temperature coefficients for the LM4040A25IDBZT?
The temperature coefficient for the LM4040A25IDBZT is ±100ppm/°C for A Grade.
- What is the minimum cathode current for the LM4040A25IDBZT?
The minimum cathode current for the LM4040A25IDBZT is 45μA.
- What is the operating current range of the LM4040A25IDBZT?
The operating current range of the LM4040A25IDBZT is from 45μA to 15mA.
- Does the LM4040A25IDBZT require an output capacitor?
No, the LM4040A25IDBZT is stable with all capacitive loads and does not require an output capacitor.
- What is the typical output noise of the LM4040A25IDBZT?
The typical output noise of the LM4040A25IDBZT is 35μVRMS.
- What are the common applications of the LM4040A25IDBZT?
The LM4040A25IDBZT is commonly used in data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- What is the operating temperature range of the LM4040A25IDBZT?
The operating temperature range of the LM4040A25IDBZT is -40°C to 125°C.
- What are the different grades available for the LM4040 series?
The LM4040 series is available in A, B, C, and D grades, each with different output voltage tolerances and temperature coefficients.
- Where can I find more detailed specifications and ordering information for the LM4040A25IDBZT?
You can find more detailed specifications and ordering information on the Texas Instruments website or through distributors like Digi-Key and Mouser.
