Overview
The LM4132AMFX-3.3/NOPB is a precision low dropout voltage reference from Texas Instruments, designed to offer high accuracy and stability in a compact SOT-23 package. This component leverages CMOS technology to achieve performance comparable to the best laser-trimmed bipolar references but at a lower cost. The LM4132 series is notable for its use of EEPROM registers to correct curvature, temperature coefficient, and accuracy, ensuring high precision across various operating conditions.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Output Voltage Initial Accuracy (C Grade) | -0.2% | 0% | 0.2% | % |
| Temperature Coefficient | 20 | ppm/°C | ||
| Supply Current | 60 | 100 | µA | |
| Supply Current in Shutdown | 3 | 7 | µA | |
| Line Regulation | 85 | ppm/V | ||
| Load Regulation | 25 | 120 | ppm/mA | |
| Long-term Stability (1000 Hrs) | 50 | ppm | ||
| Thermal Hysteresis | 75 | ppm | ||
| Dropout Voltage (ILOAD = 10 mA) | 175 | 400 | mV | |
| Output Noise Voltage (0.1 Hz to 10 Hz) | 310 | µVPP | ||
| Short-circuit Current | 75 | mA | ||
| Enable Pin Maximum Low Input Level | 35% (VIN) | V | ||
| Enable Pin Minimum High Input Level | 65% (VIN) | V |
Key Features
- Custom voltage options available from 1.8 V to 4.096 V.
- Stable operation with low-ESR ceramic capacitors.
- No output capacitor or buffer amplifier required.
- Low quiescent current of 60 µA and low dropout voltage of 400 mV.
- Available in five grades (A, B, C, D, and E) for varying levels of accuracy and temperature coefficient.
- SOT-23-5 package suitable for space-critical applications.
Applications
- Instrumentation and Process Control.
- Test Equipment.
- Data Acquisition Systems.
- Base Stations.
- Servo Systems.
- Portable, Battery-Powered Equipment.
- Automotive and Industrial.
- Precision Regulators.
- Battery Chargers.
- Communications.
- Medical Equipment.
Q & A
- What is the typical output voltage accuracy of the LM4132AMFX-3.3/NOPB? The output voltage initial accuracy for the C grade is ±0.2%.
- What is the temperature coefficient of the LM4132AMFX-3.3/NOPB? The temperature coefficient is 20 ppm/°C.
- What is the quiescent current of the LM4132AMFX-3.3/NOPB? The quiescent current is typically 60 µA.
- Does the LM4132AMFX-3.3/NOPB require an output capacitor or buffer amplifier? No, it does not require an output capacitor or buffer amplifier.
- What are the available voltage options for the LM4132 series? Custom voltage options are available from 1.8 V to 4.096 V.
- What is the dropout voltage of the LM4132AMFX-3.3/NOPB at 10 mA load current? The dropout voltage is between 175 mV and 400 mV.
- What is the output noise voltage of the LM4132AMFX-3.3/NOPB in the 0.1 Hz to 10 Hz range? The output noise voltage is typically 310 µVPP.
- What are the typical applications of the LM4132AMFX-3.3/NOPB? Applications include instrumentation, test equipment, data acquisition systems, base stations, servo systems, and more.
- What package type is the LM4132AMFX-3.3/NOPB available in? It is available in a SOT-23-5 package.
- How many grades of accuracy are available for the LM4132 series? The LM4132 series is available in five grades (A, B, C, D, and E).
- What is the long-term stability of the LM4132AMFX-3.3/NOPB over 1000 hours? The long-term stability is typically 50 ppm.
