LM4140ACM-4.1
Product Overview
Category
The LM4140ACM-4.1 belongs to the category of voltage references.
Use
It is primarily used as a precision voltage reference in various electronic circuits.
Characteristics
- High accuracy and stability
- Low temperature coefficient
- Low output noise
- Wide operating temperature range
Package
The LM4140ACM-4.1 is available in a small outline integrated circuit (SOIC) package.
Essence
The essence of LM4140ACM-4.1 lies in its ability to provide a stable and accurate voltage reference for precise circuit operation.
Packaging/Quantity
The LM4140ACM-4.1 is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.
Specifications
- Output Voltage: 4.1V
- Initial Accuracy: ±0.2%
- Temperature Coefficient: 50ppm/°C
- Supply Voltage Range: 2.7V to 10V
- Operating Temperature Range: -40°C to +125°C
Detailed Pin Configuration
The LM4140ACM-4.1 has the following pin configuration:
- VOUT: Output Voltage
- GND: Ground
- VIN: Input Voltage
Functional Features
- High precision voltage reference
- Low power consumption
- Excellent line and load regulation
- Short-circuit current limiting
Advantages and Disadvantages
Advantages
- High accuracy and stability ensure reliable circuit performance.
- Low temperature coefficient minimizes voltage variations with temperature changes.
- Low output noise reduces interference in sensitive applications.
- Wide operating temperature range allows usage in extreme environments.
Disadvantages
- Limited output voltage options restrict its applicability in certain circuits.
- Relatively higher cost compared to some other voltage references.
Working Principles
The LM4140ACM-4.1 utilizes bandgap reference technology to generate a precise and stable output voltage. It compensates for temperature variations by employing a temperature-dependent current that cancels out the temperature coefficient of the base-emitter voltage of a bipolar transistor.
Detailed Application Field Plans
The LM4140ACM-4.1 finds applications in various fields, including: 1. Precision measurement instruments 2. Data acquisition systems 3. Industrial control systems 4. Medical equipment 5. Automotive electronics
Detailed and Complete Alternative Models
Some alternative models to LM4140ACM-4.1 with similar characteristics include: 1. LT6654: Precision Voltage Reference 2. MAX6126: Ultra-Low Noise Voltage Reference 3. REF5050: High-Precision Voltage Reference 4. ADR4520: Low-Noise, High-Accuracy Voltage Reference
These alternatives offer different output voltages and package options to suit specific circuit requirements.
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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af LM4140ACM-4.1 i tekniske løsninger
Sure! Here are 10 common questions and answers related to the application of LM4140ACM-4.1 in technical solutions:
Q1: What is LM4140ACM-4.1? A1: LM4140ACM-4.1 is a specific model of voltage reference integrated circuit (IC) manufactured by Texas Instruments.
Q2: What is the purpose of LM4140ACM-4.1? A2: The purpose of LM4140ACM-4.1 is to provide a stable and accurate voltage reference for various electronic applications.
Q3: What is the voltage output range of LM4140ACM-4.1? A3: The voltage output range of LM4140ACM-4.1 is typically 4.096V with a ±0.5% accuracy.
Q4: Can LM4140ACM-4.1 be used in battery-powered devices? A4: Yes, LM4140ACM-4.1 can be used in battery-powered devices as it has low power consumption and operates within a wide supply voltage range.
Q5: How can LM4140ACM-4.1 be connected in a circuit? A5: LM4140ACM-4.1 can be connected as a standalone voltage reference or as part of a larger circuit, depending on the specific application requirements.
Q6: Is LM4140ACM-4.1 suitable for precision measurement applications? A6: Yes, LM4140ACM-4.1 is suitable for precision measurement applications due to its low temperature coefficient and excellent long-term stability.
Q7: Can LM4140ACM-4.1 tolerate high temperatures? A7: Yes, LM4140ACM-4.1 is designed to operate over a wide temperature range, typically from -40°C to +125°C.
Q8: What are the typical applications of LM4140ACM-4.1? A8: LM4140ACM-4.1 is commonly used in industrial control systems, data acquisition systems, precision instrumentation, and other electronic devices requiring accurate voltage references.
Q9: Does LM4140ACM-4.1 require external components for operation? A9: Yes, LM4140ACM-4.1 requires a few external passive components, such as capacitors, for proper operation and stability.
Q10: Can multiple LM4140ACM-4.1 ICs be used in parallel for higher current output? A10: Yes, multiple LM4140ACM-4.1 ICs can be connected in parallel to increase the current output capability while maintaining voltage accuracy.
Please note that these answers are general and may vary depending on the specific application and circuit design considerations.