Overview
The LM4132AMF-3.0/NOPB is a precision voltage reference from Texas Instruments, designed to offer high accuracy and stability in a compact SOT-23 package. This component utilizes cost-effective CMOS technology, comparable to the best laser-trimmed bipolar references, but with the added benefit of EEPROM registers for correcting curvature, temperature coefficient, and accuracy. This approach allows for package-level programming to overcome assembly shifts, enhancing overall performance and reliability.
The LM4132 family is particularly suited for space-critical applications due to its small footprint and does not require an output capacitor or buffer amplifier, making it ideal for battery-powered solutions.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23 (DBV), 5 pins |
| Operating Temperature Range | -40°C to 125°C |
| Output Voltage | 3.0 V (for LM4132AMF-3.0/NOPB) |
| Output Current | Up to 20 mA |
| Initial Accuracy | 0.05% (Grade A) |
| Temperature Coefficient | 10 ppm/°C (Grade A) |
| Supply Current | 60 µA |
| Shutdown Current | 3 µA |
| Input Voltage Range | VREF + 400 mV to 5.5 V at 10 mA |
| Dropout Voltage | 400 mV |
Key Features
- High accuracy with initial voltage accuracy of 0.05% and a temperature coefficient of 10 ppm/°C (Grade A)
- Low supply current of 60 µA and low shutdown current of 3 µA
- Delivers up to 20 mA output current without requiring an output capacitor or buffer amplifier
- AEC-Q100 qualified for automotive applications with a temperature grade of –40°C to +125°C
- Stable with low-ESR ceramic capacitors
- Available in multiple voltage options (1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, 4.096 V) and custom voltage options
Applications
The LM4132AMF-3.0/NOPB is ideal for various applications requiring high precision and low power consumption, including:
- Battery-powered devices due to its low quiescent current and low dropout voltage
- Automotive systems, as it is AEC-Q100 qualified
- Space-critical applications where the small SOT-23 package is beneficial
- General-purpose voltage reference needs in industrial and consumer electronics
Q & A
- What is the output voltage accuracy of the LM4132AMF-3.0/NOPB?
The output voltage accuracy is 0.05% for Grade A devices
- What is the maximum output current of the LM4132AMF-3.0/NOPB?
The maximum output current is up to 20 mA
- Does the LM4132AMF-3.0/NOPB require an output capacitor or buffer amplifier?
No, it does not require an output capacitor or buffer amplifier
- What is the operating temperature range of the LM4132AMF-3.0/NOPB?
The operating temperature range is –40°C to 125°C
- Is the LM4132AMF-3.0/NOPB qualified for automotive applications?
- What is the supply current of the LM4132AMF-3.0/NOPB?
The supply current is 60 µA
- What is the shutdown current of the LM4132AMF-3.0/NOPB?
The shutdown current is 3 µA
- What are the available voltage options for the LM4132 series?
The available voltage options include 1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, and 4.096 V, with custom options also available
- Why is the LM4132AMF-3.0/NOPB suitable for battery-powered devices?
- What type of capacitors is the LM4132AMF-3.0/NOPB stable with?
