Overview
The LM4040CIM3X-4.1/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. This component is designed for space-critical applications and is available in small surface-mount packages such as SOT-23, TO-92, and SC70. The LM4040-N series is known for its high accuracy and stability, making it suitable for a wide range of applications. The device eliminates the need for an external stabilizing capacitor and can tolerate capacitive loads, simplifying the design process.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reverse Breakdown Voltage | 4.096 | V |
| Reverse Breakdown Voltage Tolerance (A Grade, 25°C) | ±0.1% | |
| Minimum Operating Current | 68 | μA |
| Maximum Operating Current | 15 | mA |
| Industrial Temperature Range | −40°C to +85°C | |
| Extended Temperature Range | −40°C to +125°C | |
| Temperature Coefficient | 100 ppm/°C (maximum) | |
| Wideband Noise (10Hz to 10kHz) | 35 μVrms (typical) | |
| Reverse Dynamic Impedance | 0.3 to 0.9 Ω (typical) |
Key Features
- AEC Q-100 qualified for automotive applications with Extended Grade 1: −40°C to +125°C and Industrial Grade 3: −40°C to +85°C.
- Small packages: SOT-23, TO-92, and SC70.
- No output capacitor required.
- Tolerates capacitive loads.
- Fixed reverse breakdown voltages available: 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- Low output noise and wide operating current range.
- Low temperature coefficient.
Applications
- Field Transmitters
- Energy Infrastructure
- Data Acquisition
- Analog Input Module
- Automotive
- Audio and Video
Q & A
- What is the primary function of the LM4040CIM3X-4.1/NOPB?
The primary function is to provide a precise and stable voltage reference. - 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. - Does the LM4040CIM3X-4.1/NOPB require an external stabilizing capacitor?
No, it does not require an external stabilizing capacitor. - What is the temperature range for the Industrial Grade of the LM4040-N?
The Industrial Grade operates from −40°C to +85°C. - What is the reverse breakdown voltage tolerance for the A Grade at 25°C?
The tolerance is ±0.1%. - What is the minimum operating current for the LM4040CIM3X-4.1/NOPB?
The minimum operating current is 68 μA. - What is the maximum operating current for the LM4040-N series?
The maximum operating current is 15 mA. - What are some common applications for the LM4040-N series?
Common applications include field transmitters, energy infrastructure, data acquisition, analog input modules, automotive systems, and audio/video systems. - How does the LM4040-N series handle capacitive loads?
The LM4040-N series can tolerate capacitive loads without the need for additional components. - What is the typical wideband noise of the LM4040-N series?
The typical wideband noise is 35 μVrms from 10Hz to 10kHz.
