Overview
The LM4050QAEM3-2.5/NOPB is a precision micropower shunt voltage reference produced by Texas Instruments. This device is part of the LM4050-N series, which offers high accuracy and stability in a compact SOT-23 package. It is designed for space-constrained applications and eliminates the need for external feedback resistors. The LM4050-N series is available in several fixed output voltage options, including 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V, with voltage tolerance accuracies of ±0.1%, ±0.2%, and ±0.5% for different grades.
The device operates over a wide temperature range, with both industrial (−40°C to 85°C) and extended (−40°C to 125°C) temperature options available. It is internally compensated to ensure stability without additional components.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Reverse Breakdown Voltage (2.5 V Option) | 2.5 | - | 2.5 ± 0.1% (Grade A) | V |
| Minimum Operating Current | 60 | - | 100 | μA |
| Maximum Operating Current | - | - | 15 | mA |
| Low Output Noise (10 Hz to 10 kHz) | - | 41 | - | μVrms |
| Temperature Coefficient | - | - | 50 | ppm/°C |
| Ambient Temperature Range (Industrial) | -40 | - | 85 | °C |
| Ambient Temperature Range (Extended) | -40 | - | 125 | °C |
| Power Dissipation (TA = 25°C) | - | - | 280 | mW |
| Maximum Junction Temperature | - | - | 150 | °C |
Key Features
- Precision micropower shunt voltage reference with high accuracy (±0.1%, ±0.2%, and ±0.5% for different grades)
- Available in several fixed output voltage options: 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V
- Wide operating current range: 60 μA to 15 mA
- Low output noise: 41 μVrms (10 Hz to 10 kHz)
- Low temperature coefficient: 50 ppm/°C (max)
- Industrial and extended temperature ranges: −40°C to 85°C and −40°C to 125°C, respectively
- Internally compensated for stability without external components
- AEC-Q100 Grade 1 Qualified for automotive applications
Applications
- Portable, battery-powered equipment
- Data acquisition systems
- Instrumentation
- Process control
- Energy management
- Product testing
- Automotive systems
- Precision audio components
Q & A
- What is the LM4050QAEM3-2.5/NOPB used for?
The LM4050QAEM3-2.5/NOPB is a precision micropower shunt voltage reference used in various applications requiring stable and accurate voltage references.
- What are the available output voltage options for the LM4050-N series?
The LM4050-N series is available in several fixed output voltage options: 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V.
- What is the minimum operating current for the LM4050QAEM3-2.5/NOPB?
The minimum operating current for the LM4050QAEM3-2.5/NOPB is 60 μA.
- What is the maximum operating current for the LM4050-N series?
The maximum operating current for the LM4050-N series is 15 mA.
- What is the temperature coefficient of the LM4050-N series?
The temperature coefficient of the LM4050-N series is 50 ppm/°C (max).
- What are the temperature ranges for the LM4050-N series?
The LM4050-N series operates over both industrial (−40°C to 85°C) and extended (−40°C to 125°C) temperature ranges.
- Is the LM4050-N series suitable for automotive applications?
Yes, the LM4050-N-Q1 version is AEC-Q100 Grade 1 Qualified for automotive applications.
- What is the package type for the LM4050QAEM3-2.5/NOPB?
The LM4050QAEM3-2.5/NOPB comes in a 3-pin SOT-23 package.
- What is the power dissipation limit for the LM4050-N series at 25°C?
The power dissipation limit for the LM4050-N series at 25°C is 280 mW.
- What is the maximum junction temperature for the LM4050-N series?
The maximum junction temperature for the LM4050-N series is 150°C.
