The LM4128AQ1MFX3.3 is a precision voltage reference manufactured by Texas Instruments (formerly National Semiconductor). It provides a stable and accurate 3.3V output voltage, which is crucial for applications requiring high precision and reliability. This voltage reference is specifically designed for automotive applications and meets stringent automotive quality standards.

Applications

• Automotive control systems
• Data acquisition systems
• Precision instrumentation
• Battery management systems
• Sensor excitation
• Analog-to-digital converters (ADCs)

Features

• High accuracy: ±0.1% initial accuracy
• Low temperature coefficient: 5 ppm/°C (typical)
• Low dropout voltage
• Wide operating temperature range: -40°C to +125°C
• AEC-Q100 qualified for automotive applications
• Output voltage: 3.3V
• Low supply current
• Available in a small SOT-23 package

Benefits

• Accurate and stable voltage reference for precise measurements
• Reliable performance over a wide temperature range
• Suitable for automotive applications with stringent requirements
• Minimal error in analog circuits
• Improved system performance
• Simplified calibration

Additional Details

The LM4128AQ1MFX3.3 provides a stable 3.3V reference voltage independent of variations in input voltage and temperature. It offers excellent long-term stability. The device is available in a small SOT-23 package. The low temperature coefficient minimizes the drift in the output voltage over temperature. The AEC-Q100 qualification ensures reliability in harsh automotive environments. It is often used as a reference voltage for ADCs and DACs in automotive control systems. The device's low dropout voltage enables it to operate with a wide range of input voltages. It also finds use in battery management systems for accurate voltage monitoring.