The " LM2901DR2G " is a low- Power operational amplifier (op-amp) manufactured by Texas Instruments. The specific details you are requesting pertain to its pinout, packaging, pin functions, circuit principles, and FAQs.
1. Brand and Packaging
Brand: Texas Instruments Package: The LM2901DR2G comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. Pin Count: 8 pins.2. Pinout and Pin Functions
The LM2901 is a quad operational amplifier (op-amp) in a single package. Below is the detailed explanation of each of the 8 pins in the SOIC-8 package:
Pin Number Pin Name Pin Function Description 1 Output A The output of the first operational amplifier in the package. It is used to deliver the amplified signal. 2 Inverting Input A This is the inverting input of the first operational amplifier. A signal applied here will be inverted at the output. 3 Non-Inverting Input A The non-inverting input of the first op-amp. A signal here will be amplified without inversion. 4 V- (Negative Power Supply) The negative power supply pin. Typically connected to ground (0V). 5 Non-Inverting Input B The non-inverting input of the second op-amp. Used to apply signals for amplification without inversion. 6 Inverting Input B The inverting input of the second op-amp. A signal applied here will be inverted at the output. 7 Output B The output of the second operational amplifier. It delivers the amplified signal. 8 V+ (Positive Power Supply) The positive power supply pin. Typically connected to a positive voltage (e.g., +5V or +12V).3. Functionality Overview
The LM2901DR2G is a quad op-amp, meaning it has four independent operational amplifiers. Each op-amp has two inputs (inverting and non-inverting) and one output. These operational amplifiers can be used in a wide range of analog circuits, such as signal conditioning, filters , amplifiers, etc.
4. Application Circuit Principles
The LM2901DR2G operates as an op-amp where the gain is determined by the feedback configuration. Common configurations include:
Inverting Amplifier: A signal is applied to the inverting input, and the output is the inverted, amplified version of the input signal. Non-Inverting Amplifier: A signal is applied to the non-inverting input, and the output is the non-inverted, amplified version of the input. Differential Amplifier: Uses both inverting and non-inverting inputs to amplify the difference between two signals. comparator : The op-amp can be used as a comparator where the output switches between high and low based on the comparison of the two input voltages.5. Common FAQ (Frequently Asked Questions)
Q1: What is the LM2901DR2G?A1: The LM2901DR2G is a low-power quad operational amplifier manufactured by Texas Instruments, commonly used for signal amplification in various analog circuits.
Q2: What is the package type of LM2901DR2G?A2: The LM2901DR2G is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package.
Q3: What is the power supply requirement for LM2901DR2G?A3: The LM2901DR2G requires a dual power supply, typically V+ and V- (positive and negative voltages), which can range from ±3V to ±32V.
Q4: How many operational amplifiers are in the LM2901DR2G?A4: The LM2901DR2G contains four independent operational amplifiers in a single 8-pin package.
Q5: Can the LM2901DR2G be used as a comparator?A5: Yes, the LM2901 can be used as a comparator where the output switches between high and low states based on the input signal comparison.
Q6: What is the typical gain-bandwidth product of the LM2901?A6: The typical gain-bandwidth product of the LM2901 is around 1 MHz, which defines the frequency at which the op-amp's gain decreases with increasing frequency.
Q7: What is the input voltage range for LM2901?A7: The input voltage range for the LM2901 is typically from V- to (V+ - 2V). The op-amp cannot handle input voltages outside this range.
Q8: What is the output voltage swing of LM2901?A8: The LM2901 output can swing from V- (typically ground) to (V+ - 1.5V), depending on the load and supply voltage.
Q9: What is the input bias current for LM2901?A9: The LM2901 has a typical input bias current of 100 nA, which can be important for low-power and precision applications.
Q10: What is the output impedance of the LM2901?A10: The output impedance of the LM2901 is typically low (in the order of ohms) when it is configured as a voltage amplifier.
Q11: How is the LM2901 connected in an inverting amplifier configuration?A11: In an inverting amplifier configuration, the input signal is applied to the inverting input of one op-amp (e.g., Pin 2), and the non-inverting input is grounded. Feedback is provided from the output (Pin 1) to the inverting input via a resistor.
Q12: How can I use the LM2901 as a voltage follower?A12: To configure the LM2901 as a voltage follower (buffer), connect the non-inverting input to the input signal, and the output should be connected back to the inverting input.
Q13: Can LM2901 be used with a single supply voltage?A13: Yes, the LM2901 can operate with a single supply voltage, typically between 5V and 32V, with appropriate biasing of the input signals.
Q14: What is the quiescent current of the LM2901?A14: The typical quiescent current for each op-amp inside the LM2901 is around 0.5 mA.
Q15: How should I use the LM2901 in a differential amplifier configuration?A15: In a differential amplifier configuration, use the non-inverting input (Pin 3) for the positive input signal and the inverting input (Pin 2) for the negative input signal. Feedback is applied from the output to the inverting input.
Q16: Is the LM2901 suitable for high-speed applications?A16: The LM2901 is not suitable for high-speed applications due to its typical gain-bandwidth product of 1 MHz.
Q17: What is the input offset voltage for LM2901?A17: The typical input offset voltage of the LM2901 is 3 mV.
Q18: Can the LM2901 operate at low voltages?A18: Yes, the LM2901 can operate with low supply voltages, with a typical operating range of 3V to 32V.
Q19: What is the recommended load resistance for the LM2901 output?A19: The recommended load resistance for the output is typically 10 kΩ or higher.
Q20: How does temperature affect the LM2901?A20: The LM2901’s performance may slightly change with temperature, but it typically operates within the specified limits across a range of -40°C to 125°C.
Summary
This detailed overview of the LM2901DR2G includes an explanation of the pin functions, its use in various configurations, and answers to common questions about the operational amplifier. The LM2901DR2G is an 8-pin quad op-amp, commonly used in a wide range of applications from analog signal amplification to filtering and comparison tasks.
If you need any additional details or further clarifications, feel free to ask!
