Overview
The LM4040CIM3-4.1/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. Designed for space-critical applications, this device is available in a small SOT-23 (DBZ) surface-mount package. The LM4040-N series eliminates the need for an external stabilizing capacitor, making it easy to use and reducing design effort. It offers several fixed reverse breakdown voltages ranging from 2.048V to 10V, ensuring high accuracy and stability over a wide range of operating temperatures and currents.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Output Voltage (V) | 2.048, 2.5, 3, 4.096, 5, 8.192, 10 | Initial Accuracy (max) (%) | ±0.1, ±0.2, ±0.5, ±1, ±2 |
| Minimum Operating Current (µA) | 60 (for 2.5V), 100 (for 10V) | Maximum Operating Current (mA) | 15 |
| Operating Temperature Range (°C) | -40 to +85 (Industrial), -40 to +125 (Extended) | Temperature Coefficient (ppm/°C) | 100 (maximum) |
| Output Noise (10Hz to 10kHz) (µVrms) | 35 (typical) | Package | SOT-23 (DBZ)-3 |
Key Features
- AEC Q-100 qualified for automotive applications (Extended Grade 1: -40°C to +125°C, 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 of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- High accuracy: better than ±0.1% (A grade) at 25°C.
- Low dynamic impedance and bandgap reference temperature drift curvature correction for stable performance.
Applications
- Field Transmitters
- Energy Infrastructure
- Data Acquisition
- Analog Input Modules
- Automotive
- Audio and Video
The LM4040-N is versatile and can be used in various applications requiring precise voltage references.
Q & A
- What is the LM4040CIM3-4.1/NOPB used for?
The LM4040CIM3-4.1/NOPB is a precision micropower shunt voltage reference used in applications requiring stable and accurate voltage references, such as field transmitters, energy infrastructure, data acquisition, and automotive systems.
- What are the available output voltages for the LM4040-N?
The LM4040-N is available with fixed reverse breakdown voltages of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- What is the operating temperature range for the LM4040-N?
The operating temperature range for the LM4040-N is -40°C to +85°C for Industrial Grade and -40°C to +125°C for Extended Grade.
- Does the LM4040-N require an external stabilizing capacitor?
No, the LM4040-N does not require an external stabilizing capacitor. It maintains stability with any capacitive load.
- What is the maximum operating current for the LM4040-N?
The maximum operating current for the LM4040-N is 15mA.
- What is the temperature coefficient of the LM4040-N?
The temperature coefficient of the LM4040-N is 100ppm/°C (maximum).
- Is the LM4040-N AEC Q-100 qualified?
Yes, the LM4040-N is AEC Q-100 qualified for automotive applications.
- What package types are available for the LM4040-N?
The LM4040-N is available in SOT-23, TO-92, and SC70 packages.
- What is the output noise of the LM4040-N?
The output noise of the LM4040-N is 35µVrms (typical) from 10Hz to 10kHz.
- Is the LM4040-N RoHS compliant?
Yes, the LM4040-N is RoHS compliant.
