Overview
The LM4040A25IDBZTG4 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 LM4040A25IDBZTG4 offers a fixed output voltage of 2.5V, 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 a broad range of operating currents and temperatures.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Max | |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage (VZ) | IZ = 100μA, 25°C | V | 2.5 | 2.5 | 2.5 |
| Reverse Breakdown Voltage Tolerance (ΔVZ) | IZ = 100μA, 25°C | mV | -2.5 | 0 | 2.5 |
| Minimum Cathode Current (IZ,min) | 25°C | μA | 45 | 75 | 80 |
| Average Temperature Coefficient (αVZ) | IZ = 10mA, 25°C | ppm/°C | ±20 | ±20 | ±100 |
| Operating Temperature Range | °C | -40 | 85 | ||
| Package | SOT-23-3 |
Key Features
- Fixed output voltage of 2.5V with tight output tolerances and low temperature coefficient.
- 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.
- Space-saving SOT-23-3 package.
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 LM4040A25IDBZTG4? The fixed output voltage is 2.5V.
- What are the key features of the LM4040A25IDBZTG4? Key features include tight output tolerances, low temperature coefficient, low output noise, and stability with all capacitive loads.
- What is the operating current range of the LM4040A25IDBZTG4? The operating current range is from 45μA to 15mA.
- Does the LM4040A25IDBZTG4 require an output capacitor? No, it is stable with all capacitive loads and does not require an output capacitor.
- What is the temperature range for the LM4040A25IDBZTG4? The device is characterized for operation over an ambient temperature range of –40°C to 85°C.
- In what package is the LM4040A25IDBZTG4 available? It is available in a SOT-23-3 package.
- What are some common applications of the LM4040A25IDBZTG4? Common applications include data-acquisition systems, energy infrastructure, analog input modules, field transmitters, precision audio, and automotive electronics.
- What is the minimum cathode current for the LM4040A25IDBZTG4? The minimum cathode current is 45μA at 25°C.
- What is the average temperature coefficient of the LM4040A25IDBZTG4? The average temperature coefficient is ±20 ppm/°C at 10mA and 25°C.
- Is the LM4040A25IDBZTG4 suitable for portable applications? Yes, it is ideal for portable applications due to its low current requirements and small package size.
