Overview
The LM4040CIM3X-2.5/NOPB is a precision micropower shunt voltage reference from 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 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 | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage | IR = 100μA | 2.5 | 2.5 | 2.5 | V |
| Reverse Breakdown Voltage Tolerance (Grade C) | IR = 100μA, TA = TJ = 25°C | ±12 mV | ±12 mV | mV | |
| Reverse Breakdown Voltage Tolerance (Grade C) over Temperature | TA = TJ = TMIN to TMAX | ±29 mV | mV | ||
| Minimum Operating Current | TA = TJ = 25°C | 45 μA | 60 μA | 60 μA | μA |
| Maximum Operating Current | 15 mA | mA | |||
| Average Reverse Breakdown Voltage Temperature Coefficient | IR = 10mA | ±20 ppm/°C | ±20 ppm/°C | ppm/°C | |
| Wideband Noise (10Hz to 10kHz) | IR = 100μA | 35 μVrms | 35 μVrms | μVrms | |
| Operating Temperature Range (Industrial Grade) | -40°C | +85°C | °C | ||
| Operating Temperature Range (Extended Grade) | -40°C | +125°C | °C |
Key Features
- No output capacitor required for stability.
- Tolerates capacitive loads.
- Fixed reverse breakdown voltages available: 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- High accuracy: ±0.1% (A grade) at 25°C.
- Low output noise: 35 μVrms (typical) from 10Hz to 10kHz.
- Wide operating current range: 60 μA to 15 mA.
- Small packages: SOT-23, TO-92, and SC70.
- AEC Q-100 qualified for automotive applications (LM4040-N-Q1).
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 LM4040CIM3X-2.5/NOPB?
The LM4040CIM3X-2.5/NOPB is a precision micropower shunt voltage reference, providing a stable voltage reference for various applications.
- What are the available package types for the LM4040 series?
The LM4040 series is available in SOT-23, TO-92, and SC70 packages.
- Does the LM4040CIM3X-2.5/NOPB require an external stabilizing capacitor?
No, the LM4040CIM3X-2.5/NOPB does not require an external stabilizing capacitor for stability.
- What is the operating temperature range for the industrial grade of the LM4040CIM3X-2.5/NOPB?
The operating temperature range for the industrial grade is -40°C to +85°C.
- What is the maximum operating current of the LM4040CIM3X-2.5/NOPB?
The maximum operating current is 15 mA.
- What is the typical wideband noise of the LM4040CIM3X-2.5/NOPB?
The typical wideband noise is 35 μVrms from 10Hz to 10kHz.
- Is the LM4040CIM3X-2.5/NOPB suitable for automotive applications?
Yes, the LM4040-N-Q1 version is AEC Q-100 qualified for automotive applications.
- What are the available fixed reverse breakdown voltages for the LM4040 series?
The available fixed reverse breakdown voltages are 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V.
- What is the minimum operating current of the LM4040CIM3X-2.5/NOPB?
The minimum operating current is 45 μA at 25°C.
- How accurate is the LM4040CIM3X-2.5/NOPB at 25°C?
The LM4040CIM3X-2.5/NOPB has an accuracy of ±0.1% (A grade) at 25°C.
