Overview
The LM4040C25MDBZTEP is a precision micropower shunt voltage reference produced by Texas Instruments. This device is part of the LM4040 series, known for its versatility and ease of use across a wide range of applications. It features a fixed output voltage of 2.5V and is characterized by its tight output tolerances and low temperature coefficient, making it suitable for critical applications in defense, aerospace, medical, and other fields. The LM4040C25MDBZTEP is packaged in a space-saving SOT-23-3 package and operates over an ambient temperature range of –55°C to 125°C, making it ideal for both portable and high-reliability applications.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage (VZ) | 2.5 | 2.5 | 2.5 | V |
| Output Voltage Tolerance | -0.65% | - | 0.65% | % |
| Temperature Coefficient | -100 | - | 100 | ppm/°C |
| Minimum Cathode Current (IZ,min) | 45 | 45 | - | μA |
| Maximum Cathode Current (IZ,max) | - | - | 15 | mA |
| Operating Temperature Range (TA) | -55 | - | 125 | °C |
| Reverse Dynamic Impedance (ZZ) | - | 0.3 | - | Ω |
| Wideband Noise (eN) | - | 35 | - | μVRMS |
Key Features
- Fixed output voltage of 2.5V with tight output tolerances (±0.65%) and low temperature coefficient (±100 ppm/°C).
- Controlled baseline and one assembly/test site, ensuring high reliability.
- Low output noise (35 μVRMS typical) and low dynamic impedance (0.3 Ω typical).
- Wide operating current range (45 μA to 15 mA) and stable with all capacitive loads without requiring an output capacitor.
- Extended product life cycle and product-change notification, along with product traceability.
- Available in a military temperature range (–55°C to 125°C) and packaged in a SOT-23-3 package.
Applications
- Data-acquisition systems
- Power supplies and power-supply monitors
- Instrumentation and test equipment
- Process controls
- Precision audio
- Automotive electronics
- Energy management
- Battery-powered equipment
Q & A
- What is the output voltage of the LM4040C25MDBZTEP? The output voltage is 2.5V.
- What is the temperature coefficient of the LM4040C25MDBZTEP? The temperature coefficient is ±100 ppm/°C.
- What is the minimum cathode current required for the LM4040C25MDBZTEP? The minimum cathode current is 45 μA.
- Does the LM4040C25MDBZTEP require an output capacitor for stability? No, it does not require an output capacitor for stability, but it can be used with all capacitive loads if desired.
- What is the operating temperature range of the LM4040C25MDBZTEP? The operating temperature range is –55°C to 125°C.
- What are the key applications of the LM4040C25MDBZTEP? Key applications include data-acquisition systems, power supplies, instrumentation, process controls, precision audio, automotive electronics, energy management, and battery-powered equipment.
- What package type is the LM4040C25MDBZTEP available in? It is available in a SOT-23-3 package.
- What is the maximum cathode current for the LM4040C25MDBZTEP? The maximum cathode current is 15 mA.
- Does the LM4040C25MDBZTEP support high-reliability applications? Yes, it supports high-reliability applications in defense, aerospace, and medical fields due to its controlled baseline and extended product life cycle.
- What is the typical wideband noise of the LM4040C25MDBZTEP? The typical wideband noise is 35 μVRMS).
