Overview
The LM4051AIM3-1.2+T, produced by Analog Devices Inc./Maxim Integrated, is a precision micropower shunt voltage reference designed for space-critical applications. It is available in the sub-miniature SOT-23 surface-mount package, measuring 3 mm x 1.3 mm. This component is ideal for applications requiring high accuracy and stability, with the advanced design eliminating the need for an external stabilizing capacitor. The LM4051AIM3-1.2+T offers a fixed reverse breakdown voltage of 1.225V and is available in three grades (A, B, and C) with varying initial accuracy and temperature coefficients.
Key Specifications
| Parameter | Conditions | Typical | Min | Max | Unit |
|---|---|---|---|---|---|
| Reverse Breakdown Voltage | IR = 100 μA | 1.225 | - | - | V |
| Reverse Breakdown Voltage Tolerance (A Grade) | IR = 100 μA | - | ±1.2 | ±5.2 (Industrial Temp Range) | mV |
| Minimum Operating Current | TJ = 25°C | 39 | 60 | 65 | μA |
| Maximum Operating Current | - | - | - | 12 | mA |
| Temperature Coefficient | - | - | - | 50 | ppm/°C |
| Industrial Temperature Range | - | - | -40 | 85 | °C |
| Extended Temperature Range | - | - | -40 | 125 | °C |
| Output Noise (10 Hz to 10 kHz) | - | - | - | 20 | μVrms |
Key Features
- Small SOT-23 package, ideal for space-critical applications.
- No output capacitor required for stability.
- Tolerates capacitive loads.
- Fixed (1.225V) and adjustable reverse breakdown voltage options.
- Low output noise (20 μVrms from 10 Hz to 10 kHz).
- Wide operating current range (60 μA to 12 mA).
- Low temperature coefficient (50 ppm/°C).
- Available in three grades (A, B, and C) with varying initial accuracy.
Applications
- Portable, battery-powered equipment.
- Data acquisition systems.
- Instrumentation.
- Process control.
- Energy management.
- Automotive and industrial applications.
- Precision audio components.
- Base stations.
- Battery chargers.
- Medical equipment.
- Communication systems.
Q & A
- What is the typical reverse breakdown voltage of the LM4051AIM3-1.2+T?
The typical reverse breakdown voltage is 1.225V.
- What are the minimum and maximum operating currents for the LM4051AIM3-1.2+T?
The minimum operating current is 60 μA, and the maximum operating current is 12 mA.
- What is the temperature coefficient of the LM4051AIM3-1.2+T?
The temperature coefficient is 50 ppm/°C.
- Does the LM4051AIM3-1.2+T require an external stabilizing capacitor?
No, the LM4051AIM3-1.2+T does not require an external stabilizing capacitor for stability.
- What are the available grades for the LM4051AIM3-1.2+T and their respective accuracies?
The available grades are A, B, and C, with initial accuracies of ±0.1%, ±0.2%, and ±0.5%, respectively.
- What is the industrial temperature range for the LM4051AIM3-1.2+T?
The industrial temperature range is from -40°C to +85°C.
- What is the extended temperature range for the LM4051AIM3-1.2+T?
The extended temperature range is from -40°C to +125°C.
- What is the output noise of the LM4051AIM3-1.2+T over the frequency range of 10 Hz to 10 kHz?
The output noise is 20 μVrms.
- Can the LM4051AIM3-1.2+T tolerate capacitive loads?
- What are some common applications of the LM4051AIM3-1.2+T?
