Overview
The LM4040EIM3-2.5/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. This component is designed for space-critical applications and is available in a small SOT-23 surface-mount package. It is part of the LM4040-N series, which is known for its high accuracy and stability. The LM4040EIM3-2.5/NOPB is specifically tailored for applications requiring a fixed reverse breakdown voltage of 2.5V.
Key Specifications
| Parameter | Test Conditions | Typical | Maximum | Unit |
|---|---|---|---|---|
| Reverse Breakdown Voltage | IR = 100μA | 2.5V | - | V |
| Reverse Breakdown Voltage Tolerance | IR = 100μA, TA = TJ = 25°C | ±50mV | ±74mV (TMIN to TMAX) | mV |
| Minimum Operating Current | TA = TJ = 25°C | 45μA | 65μA (TMIN to TMAX) | μA |
| Maximum Operating Current | - | - | 15mA | mA |
| Average Reverse Breakdown Voltage Temperature Coefficient | IR = 10mA | ±20ppm/°C | ±100ppm/°C (TMIN to TMAX) | ppm/°C |
| Wideband Noise | IR = 100μA, 10Hz ≤ f ≤ 10kHz | 35μVrms | - | μVrms |
| Reverse Dynamic Impedance | IR = 1mA, f = 120Hz, IAC = 0.1 IR | 0.3Ω | 1.1Ω | Ω |
| Temperature Range | - | - | −40°C to +125°C (Extended Grade 1), −40°C to +85°C (Industrial Grade 3) | °C |
Key Features
- No output capacitor required, ensuring stability with any capacitive load.
- Fixed reverse breakdown voltages of 2.5V, with other options available in the series (2.048V, 3V, 4.096V, 5V, 8.192V, and 10V).
- Small packages: SOT-23, TO-92, and SC70, making it suitable for space-critical applications.
- Low output noise: 35μVrms (typical) over the 10Hz to 10kHz frequency range.
- Wide operating current range: 60μA to 15mA.
- Low temperature coefficient: 100ppm/°C (maximum).
- AEC Q-100 qualified for automotive applications, with extended temperature ranges.
Applications
- Field Transmitters
- Energy Infrastructure
- Data Acquisition
- Analog Input Modules
- Automotive systems
- Audio and Video equipment
Q & A
- What is the primary function of the LM4040EIM3-2.5/NOPB?
The LM4040EIM3-2.5/NOPB is a precision micropower shunt voltage reference, providing a stable 2.5V output voltage.
- 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 LM4040EIM3-2.5/NOPB require an external stabilizing capacitor?
No, the LM4040EIM3-2.5/NOPB does not require an external stabilizing capacitor, as it maintains stability with any capacitive load.
- What is the temperature range for the LM4040EIM3-2.5/NOPB?
The temperature range is −40°C to +125°C (Extended Grade 1) and −40°C to +85°C (Industrial Grade 3).
- What is the minimum and maximum operating current for the LM4040EIM3-2.5/NOPB?
The minimum operating current is 45μA at 25°C, and the maximum operating current is 15mA.
- What is the reverse breakdown voltage tolerance for the LM4040EIM3-2.5/NOPB at 25°C?
The reverse breakdown voltage tolerance at 25°C is ±50mV.
- What is the wideband noise specification for the LM4040EIM3-2.5/NOPB?
The wideband noise is 35μVrms over the 10Hz to 10kHz frequency range.
- Is the LM4040EIM3-2.5/NOPB suitable for automotive applications?
Yes, the LM4040EIM3-2.5/NOPB is AEC Q-100 qualified for automotive applications.
- What are some common applications of the LM4040EIM3-2.5/NOPB?
Common applications include field transmitters, energy infrastructure, data acquisition, analog input modules, automotive systems, and audio and video equipment.
- What is the average reverse breakdown voltage temperature coefficient for the LM4040EIM3-2.5/NOPB?
The average reverse breakdown voltage temperature coefficient is ±20ppm/°C at 10mA.
