Overview
The LM4040AIM3-4.1/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. Designed for space-critical applications, this component is available in a subminiature SOT-23 surface-mount package. It is part of the LM4040 series and is known for its high accuracy and stability over a wide range of operating temperatures and currents.
This voltage reference is ideal for applications requiring a precise and reliable voltage source, with features such as no need for an external stabilizing capacitor and the ability to tolerate capacitive loads. The LM4040AIM3-4.1/NOPB is AEC-Q100 qualified, making it suitable for automotive applications as well as industrial and other demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage Reference Type | Shunt - Fixed | |
| Reference Voltage | 4.096V | |
| Initial Accuracy | ±0.1% | |
| Temperature Coefficient | ±30 ppm/°C | |
| Voltage Reference Case Style | SOT-23 | |
| No. of Pins | 3 | |
| Operating Temperature Min | -40°C | |
| Operating Temperature Max | 85°C | |
| Automotive Qualification Standard | AEC-Q100 | |
| Power Dissipation Max | 306 mW | |
| Minimum Operating Current | 60 µA | |
| Maximum Operating Current | 15 mA | |
| Low Output Noise (10Hz to 10kHz) | 35 µVrms (typical) |
Key Features
- No need for an external stabilizing capacitor, maintaining stability with any capacitive load.
- Fixed reverse breakdown voltages available: 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- AEC-Q100 qualified for automotive applications.
- Extended temperature range: -40°C to +125°C (Grade 1) and -40°C to +85°C (Industrial Grade 3).
- Small packages: SOT-23, TO-92, and SC70.
- Low output noise: 35 µVrms (typical) from 10Hz to 10kHz.
- Wide operating current range: 60 µA to 15 mA.
- Low temperature coefficient: 100 ppm/°C (maximum).
Applications
- Field Transmitters
- Energy Infrastructure
- Data Acquisition
- Analog Input Modules
- Automotive Systems
- Audio and Video Equipment
Q & A
- What is the reference voltage of the LM4040AIM3-4.1/NOPB?
The reference voltage of the LM4040AIM3-4.1/NOPB is 4.096V.
- What is the initial accuracy of the LM4040AIM3-4.1/NOPB?
The initial accuracy is ±0.1%.
- What is the operating temperature range of the LM4040AIM3-4.1/NOPB?
The operating temperature range is -40°C to +85°C.
- Is the LM4040AIM3-4.1/NOPB AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified for automotive applications.
- Does the LM4040AIM3-4.1/NOPB require an external stabilizing capacitor?
No, it does not require an external stabilizing capacitor.
- What is the maximum operating current of the LM4040AIM3-4.1/NOPB?
The maximum operating current is 15 mA.
- What are the available package types for the LM4040-N series?
The available package types are SOT-23, TO-92, and SC70.
- What is the low output noise specification of the LM4040AIM3-4.1/NOPB?
The low output noise is 35 µVrms (typical) from 10Hz to 10kHz.
- What are some common applications of the LM4040AIM3-4.1/NOPB?
Common applications include field transmitters, energy infrastructure, data acquisition, analog input modules, automotive systems, and audio and video equipment.
- Where can I find additional documentation and specifications for the LM4040AIM3-4.1/NOPB?
Additional documentation and specifications can be found on the Texas Instruments website and through authorized distributors.
