OPA340NA-3K Detailed explanation of pin function specifications and circuit principle instructions（64 ）
The part number " OPA340NA/3K " belongs to Texas Instruments (TI). It is an operational amplifier (op-amp) in a SOT-23-5 package. Here's a detailed explanation of its pin functions and a list of common FAQs.
1. Pin Function Specifications and Circuit Principle Instructions
General Information about OPA340NA/3K: The OPA340 is a low-power, precision operational amplifier featuring rail-to-rail output. It is designed for single-supply and dual-supply applications with a wide input voltage range. The "NA" suffix in "OPA340NA/3K" refers to the specific package and temperature range.
OPA340NA Pin Configuration (SOT-23-5) Pin No. Pin Name Pin Function Description 1 OUT Output Pin. This is the output of the op-amp and is where the amplified signal is taken. 2 IN+ Non-inverting Input Pin. This pin receives the signal to be amplified, with respect to ground. 3 GND Ground Pin. This is the reference ground for the device and should be connected to the system ground. 4 IN- Inverting Input Pin. This pin receives the signal for inversion with respect to the non-inverting input. 5 V+ (Vcc) Positive Supply Voltage Pin. This pin connects to the positive supply voltage in single or dual supply configurations.2. Pin Function Overview
The OPA340NA/3K op-amp provides differential inputs (IN+ and IN-) and a single-ended output (OUT). This op-amp is typically used in applications requiring high precision with low noise. It supports a wide operating voltage range, typically from 2.7V to 40V. The ground pin (GND) is critical in setting a proper reference, and the supply pins (V+ and GND) power the op-amp.
3. 20 FAQs about OPA340NA/3K
Q: What is the function of pin 1 (OUT) in the OPA340NA/3K? A: Pin 1 (OUT) is the output pin of the op-amp where the amplified signal is provided. It delivers the final output after the amplification of the input signal. Q: What is the purpose of pin 2 (IN+) in the OPA340NA/3K? A: Pin 2 (IN+) is the non-inverting input of the OPA340NA/3K. It receives the input signal with respect to ground, and the signal is amplified without inversion. Q: How should pin 3 (GND) be connected in a circuit? A: Pin 3 (GND) should be connected to the system ground to ensure the proper functioning of the op-amp. It serves as the reference point for the input and output signals. Q: What does pin 4 (IN-) do in the OPA340NA/3K? A: Pin 4 (IN-) is the inverting input of the op-amp. It is used for differential signal processing, where the input signal is inverted with respect to the signal applied at the non-inverting input (IN+). Q: What is the significance of pin 5 (V+) in the OPA340NA/3K? A: Pin 5 (V+) is the positive supply voltage pin. It powers the op-amp in single or dual supply configurations and should be connected to a positive voltage source. Q: What is the maximum supply voltage for the OPA340NA/3K? A: The OPA340NA/3K operates with a supply voltage range from 2.7V to 40V. The maximum supply voltage must not exceed these limits to prevent damage. Q: Can the OPA340NA/3K be used in single-supply applications? A: Yes, the OPA340NA/3K can be used in single-supply configurations. The input and output voltage ranges are designed to work with a single supply voltage, typically starting from 2.7V. Q: What is the input voltage range of the OPA340NA/3K? A: The OPA340NA/3K has an input voltage range from 0V to V+ (the positive supply voltage), making it ideal for rail-to-rail operation. Q: What is the output voltage swing of the OPA340NA/3K? A: The output voltage swing is rail-to-rail, meaning the output can swing close to the supply rails, typically within 100mV of the supply voltage.Q: What is the typical power consumption of the OPA340NA/3K?
A: The typical power consumption of the OPA340NA/3K is very low, approximately 45 µA at 5V, making it ideal for battery-powered applications.Q: How does the OPA340NA/3K perform in low-voltage applications?
A: The OPA340NA/3K is designed for low-voltage operation, providing excellent performance even with supply voltages as low as 2.7V.Q: Can the OPA340NA/3K be used for high-frequency applications?
A: Yes, the OPA340NA/3K has a wide bandwidth, but it is best suited for low-frequency or medium-speed applications with a gain-bandwidth product of 1 MHz.Q: What is the gain-bandwidth product of the OPA340NA/3K?
A: The gain-bandwidth product of the OPA340NA/3K is 1 MHz, which limits the frequency response in applications that require high-speed amplification.Q: How do I connect the OPA340NA/3K in a differential amplifier configuration?
A: To use the OPA340NA/3K in a differential amplifier configuration, apply the input signals to both the non-inverting (IN+) and inverting (IN-) pins, with appropriate feedback resistors to set the gain.Q: What is the input bias current for the OPA340NA/3K?
A: The input bias current is typically 1nA, which is quite low, ensuring minimal offset when handling precision signals.Q: How does temperature affect the performance of the OPA340NA/3K?
A: The OPA340NA/3K has low drift characteristics, but the performance may be slightly affected by temperature changes. However, it is specified for use in applications with temperatures ranging from -40°C to 125°C.Q: What is the output current drive capability of the OPA340NA/3K?
A: The OPA340NA/3K can drive output currents up to 20mA, making it suitable for most low-power output applications.Q: What kind of protection does the OPA340NA/3K have against over-voltage or over-current?
A: The OPA340NA/3K is protected against over-voltage and over-current conditions, but it is recommended to follow the electrical specifications to prevent damage.Q: Can the OPA340NA/3K be used in audio applications?
A: Yes, the OPA340NA/3K can be used in audio applications due to its low noise and high precision, making it suitable for signal conditioning in audio systems.Q: Is the OPA340NA/3K suitable for precision measurement applications?
A: Yes, the OPA340NA/3K is ideal for precision measurement applications, offering low offset voltage, low noise, and a high degree of accuracy.This detailed pin function and FAQ guide is designed to provide thorough information on the OPA340NA/3K operational amplifier.
