The "OPA2348AIDR" is a product from Texas Instruments. It is a precision operational amplifier (op-amp) with rail-to-rail input and output. Below, I will provide a detailed explanation of the pin function specifications, the packaging, and a list of pin functions and common FAQs. I will organize it as requested and ensure that every pin and function is thoroughly described.
OPA2348AIDR - Detailed Pin Function Specification and Packaging Information
Manufacturer:Texas Instruments
Packaging Information: The OPA2348AIDR is provided in an 8-pin SOIC (Small Outline Integrated Circuit) package. Pin Functions for OPA2348AIDR (8-Pin SOIC Package)The OPA2348AIDR consists of 8 pins. Here’s the complete breakdown of their functions:
Pin Number Pin Name Pin Type Pin Function Description 1 V− (Negative Power Supply) Power Supply Pin The negative supply pin for the operational amplifier. This pin is connected to the negative rail of the power supply in a dual-supply configuration or ground in a single-supply configuration. 2 IN− (Inverting Input) Input Pin The inverting input of the operational amplifier. This pin receives the input signal to be inverted. This is where the negative feedback from the output is typically applied. 3 OUT (Output) Output Pin The output of the operational amplifier. It provides the amplified signal. In a closed-loop configuration, the output will be determined by the input signals and feedback network. 4 V+ (Positive Power Supply) Power Supply Pin The positive supply pin for the operational amplifier. This pin is connected to the positive rail of the power supply in a dual-supply configuration or a positive voltage source in a single-supply configuration. 5 NC (No Connection) No Connection This pin has no connection internally and is not used in the circuit. It can be left floating. 6 IN+ (Non-inverting Input) Input Pin The non-inverting input of the operational amplifier. This pin receives the input signal to be amplified without inversion. Feedback can also be applied here in a differential configuration. 7 NC (No Connection) No Connection This pin also has no internal connection and is not used in the circuit. It can be left floating. 8 NC (No Connection) No Connection This pin is another pin with no internal connection and can be left floating. Detailed Pin Function ExplanationV− Pin: This pin is crucial for defining the operational amplifier’s supply voltage. The OPA2348AIDR supports dual-supply or single-supply operation, so this pin is connected to the negative voltage in dual-supply configurations or to ground in single-supply configurations. It helps in setting the baseline for the output signal swing, ensuring proper functionality of the op-amp.
IN− Pin: The inverting input is where the negative feedback is applied in typical configurations. It is responsible for receiving the input signal that will be inverted and processed. The operational amplifier’s behavior, such as its gain, is controlled by the feedback components around this pin.
OUT Pin: The output pin delivers the amplified signal to the external circuit. The OPA2348AIDR provides a rail-to-rail output, which means it can drive the output voltage to both the upper and lower supply rails.
V+ Pin: This pin connects to the positive power supply. As with the V− pin, this helps define the operational range of the op-amp. The supply voltage influences the maximum output voltage swing and the operational range of the input signals.
NC Pins: These pins are not internally connected, meaning they don’t serve any purpose within the op-amp. They can be safely ignored in the circuit and left floating.
IN+ Pin: The non-inverting input receives the signal in non-inverting configurations. The OPA2348AIDR has the flexibility to be used in both inverting and non-inverting circuits, with the input signal being amplified without inversion on this pin.
FAQs About the OPA2348AIDR (OPA2348)
Q1: What is the supply voltage range for the OPA2348AIDR?A1: The OPA2348AIDR operates with a supply voltage range from 1.8V to 5.5V, making it suitable for low-power applications and mobile devices.
Q2: Can the OPA2348AIDR operate with a single power supply?A2: Yes, the OPA2348AIDR can operate with a single power supply, as well as dual-supply configurations. In a single-supply setup, the V− pin is connected to ground, and the V+ pin is connected to the positive voltage source.
Q3: What is the gain-bandwidth product of the OPA2348AIDR?A3: The OPA2348AIDR has a gain-bandwidth product of 1 MHz, which defines its performance in high-frequency applications.
Q4: Is the OPA2348AIDR a rail-to-rail op-amp?A4: Yes, the OPA2348AIDR features rail-to-rail input and output, meaning it can operate very close to the supply rails, maximizing the dynamic range.
Q5: What is the quiescent current of the OPA2348AIDR?A5: The OPA2348AIDR has a very low quiescent current, typically around 25nA, making it ideal for low-power applications.
Q6: How does the OPA2348AIDR handle input offset voltage?A6: The OPA2348AIDR has a very low input offset voltage of typically 25 µV, which minimizes the error in precision applications.
Q7: Can the OPA2348AIDR be used in audio applications?A7: Yes, the OPA2348AIDR can be used in audio applications, as it offers low noise and excellent linearity.
Q8: What is the input common-mode voltage range of the OPA2348AIDR?A8: The OPA2348AIDR has an input common-mode voltage range that extends from the negative supply rail (V−) to 0.5V below the positive supply rail (V+), making it suitable for a wide range of input signals.
Q9: How stable is the OPA2348AIDR over temperature variations?A9: The OPA2348AIDR is designed for high stability over temperature variations, with an input offset voltage that varies by only 0.5 µV/°C.
Q10: Can the OPA2348AIDR drive capacitive loads?A10: Yes, the OPA2348AIDR can drive capacitive loads up to 100pF, making it suitable for a variety of applications, but it is important to provide proper compensation if driving higher capacitances.
Q11: What is the output drive capability of the OPA2348AIDR?A11: The OPA2348AIDR can drive up to 10kΩ of load resistance to ground with a high output swing, providing flexibility in various applications.
Q12: What is the slew rate of the OPA2348AIDR?A12: The slew rate of the OPA2348AIDR is typically 0.1 V/µs, which is suitable for low-speed applications requiring precision.
Q13: Can the OPA2348AIDR be used in differential amplifier configurations?A13: Yes, the OPA2348AIDR is suitable for differential amplifier configurations where both inverting and non-inverting inputs are utilized.
Q14: What is the common-mode rejection ratio (CMRR) of the OPA2348AIDR?A14: The OPA2348AIDR features a high CMRR, typically 100 dB, ensuring that common-mode signals are effectively rejected.
Q15: Is the OPA2348AIDR suitable for precision applications?A15: Yes, the OPA2348AIDR is ideal for precision applications due to its low offset voltage, low drift, and high accuracy.
Q16: What are the recommended operating conditions for the OPA2348AIDR?A16: The recommended operating conditions include a temperature range of −40°C to +125°C, with a supply voltage between 1.8V and 5.5V.
Q17: Can the OPA2348AIDR be used in battery-powered devices?A17: Yes, with its low quiescent current, the OPA2348AIDR is well-suited for battery-powered devices, extending battery life in portable applications.
Q18: What is the output voltage swing of the OPA2348AIDR?A18: The output voltage swing of the OPA2348AIDR is from V− to V+ − 0.1V, providing a wide range of output voltages even near the supply rails.
Q19: How is the OPA2348AIDR different from other op-amps in terms of power consumption?A19: The OPA2348AIDR is designed with ultra-low power consumption, typically consuming only 25nA of quiescent current, making it ideal for energy-sensitive applications.
Q20: How can I use the OPA2348AIDR in a voltage follower configuration?A20: In a voltage follower (buffer) configuration, the non-inverting input (IN+) receives the input signal, and the output (OUT) is connected to the inverting input (IN−), providing unity gain and high input impedance.
This comprehensive guide provides a detailed overview of the OPA2348AIDR's pin functions and specifications, along with an FAQ section that covers common user queries. If you need further assistance or more details, feel free to ask!
