Overview
The LM4040AIM3-2.5 from Texas Instruments is a precision micropower shunt voltage reference designed for space-critical applications. This component is part of the LM4040-N series, known for its high accuracy and stability over a wide range of operating temperatures and currents. The LM4040AIM3-2.5 is specifically configured with a fixed reverse breakdown voltage of 2.5V and is available in a small SOT-23 surface-mount package.
This device is ideal for applications requiring a stable voltage reference with minimal footprint and low power consumption. The advanced design eliminates the need for an external stabilizing capacitor, making it easy to integrate into various systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage Tolerance (A Grade, 25°C) | ±0.1% | - |
| Output Noise (10Hz to 10kHz) | 35µVrms (typical) | - |
| Operating Current Range | 60µA to 15mA | - |
| Industrial Temperature Range | -40°C to +85°C | - |
| Extended Temperature Range | -40°C to +125°C | - |
| Temperature Coefficient | 100ppm/°C (maximum) | - |
| Reverse Breakdown Voltage | 2.5V | V |
| Package Type | SOT-23 | - |
Key Features
- AEC Q-100 qualified for automotive applications
- Extended Grade 1: -40°C to +125°C, TA; Industrial Grade 3: -40°C to +85°C, TA
- Small packages: SOT-23, TO-92, and SC70
- No output capacitor required
- Tolerates capacitive loads
- Fixed reverse breakdown voltages of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V
- Ultra-low output noise and low dynamic impedance for stable operation
- Bandgap reference temperature drift curvature correction for accurate voltage reference over a wide temperature range
Applications
- Portable, Battery-Powered Equipment
- Notebook Computers
- Cell Phones
- Industrial Process Controls
- Automotive Systems
- Field Transmitters
- Energy Infrastructure
Q & A
- What is the output voltage tolerance of the LM4040AIM3-2.5 at 25°C?
The output voltage tolerance is ±0.1% (maximum) for the A Grade at 25°C.
- What is the operating current range of the LM4040AIM3-2.5?
The operating current range is from 60µA to 15mA.
- Does the LM4040AIM3-2.5 require an external stabilizing capacitor?
No, the LM4040AIM3-2.5 does not require an external stabilizing capacitor.
- What are the available package types for the LM4040-N series?
The LM4040-N series is available in SOT-23, TO-92, and SC70 packages.
- What is the temperature coefficient of the LM4040AIM3-2.5?
The temperature coefficient is 100ppm/°C (maximum).
- Is the LM4040AIM3-2.5 suitable for automotive applications?
- What is the output noise of the LM4040AIM3-2.5 over the frequency range of 10Hz to 10kHz?
The output noise is 35µVrms (typical) over the frequency range of 10Hz to 10kHz).
- What are some common applications of the LM4040AIM3-2.5?
- What is the reverse breakdown voltage of the LM4040AIM3-2.5?
The reverse breakdown voltage of the LM4040AIM3-2.5 is 2.5V).
- Does the LM4040AIM3-2.5 tolerate capacitive loads?
