Manufacturer Part Number
LM4121AIM5-1.2
Manufacturer
Texas Instruments
Introduction
The LM4121AIM5-1.2 is a precision low-voltage series voltage reference offering high accuracy and low noise in a compact SOT-23-5 package, specifically designed for power-sensitive applications.
Product Features and Performance
Fixed output voltage of 1.25V
Output current capability of 5 mA
Low tolerance of ±0.2%
Excellent temperature coefficient of 50ppm/°C
Low noise performance: 20µVp-p from 0.1Hz to 10Hz, 30µVrms from 10Hz to 10kHz
Wide input voltage range from 1.5V to 12V
Low supply current requirement of 275µA
Operating temperature range from -40°C to 85°C
Product Advantages
High accuracy and stability
Compact and lightweight design
Suitable for battery-operated devices
Minimal power consumption enhances device longevity
Key Technical Parameters
Voltage Output (Min/Fixed): 1.25V
Current Output: 5 mA
Tolerance: ±0.2%
Temperature Coefficient: 50ppm/°C
Noise Level: 20µVp-p (0.1Hz to 10Hz), 30µVrms (10Hz to 10kHz)
Voltage Input: 1.5V ~ 12V
Current Supply: 275µA
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Robust thermal performance
Compliance with industry-standard safety regulations
Compatibility
Suitable for use with microprocessors and other digital systems needing a stable voltage reference
Compatible with surface mount technology for PCB manufacturing
Application Areas
Battery-operated electronics
Portable and handheld devices
Measurement equipment
Communication systems
Product Lifecycle
Status: Obsolete
Not recommended for new designs
Alternatives or replacements may need to be considered
Several Key Reasons to Choose This Product
Exceptional accuracy and low tolerance for critical applications
Low noise output ensures high-performance in sensitive electronics
Wide operating temperature suited for diverse environments
Efficient power usage extends battery life in portable applications
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