The model you mentioned, OPA197IDBVR, is a precision operational amplifier from Texas Instruments. The "OPA" in the part number refers to its category as an operational amplifier, and the "197" indicates the specific model within the OPA series. The OPA197 is a low-power, low-offset, precision op-amp that features a rail-to-rail output and is widely used in applications requiring high precision and low power consumption.
Packaging and Pin Configuration
The OPA197IDBVR is provided in a SOIC-8 (Small Outline Integrated Circuit) package, with 8 pins in total. This package is commonly used for devices with low to moderate pin counts and allows for compact integration into a variety of electronic circuits.
Pin Function Details (8-pin SOIC-8 Package)
Below is the detailed pin function description for the OPA197IDBVR. The functionality of each pin is crucial for correct circuit design and usage:
Pin Number Pin Name Pin Function 1 V+ Positive supply voltage input for the operational amplifier. Typically connects to a positive voltage source. 2 -IN Inverting input terminal. This is where the negative input signal is applied in an op-amp circuit. 3 +IN Non-inverting input terminal. This is where the positive input signal is applied. 4 NC No connection. This pin is not internally connected to the chip and can be left unconnected. 5 Output Output terminal. The op-amp’s amplified signal is available here. 6 V- Negative supply voltage input for the operational amplifier. Typically connects to a negative voltage source. 7 NC No connection. This pin is not internally connected to the chip and can be left unconnected. 8 NC No connection. This pin is not internally connected to the chip and can be left unconnected.Circuit Principle Instructions
The OPA197 operational amplifier is designed to operate with a single or dual power supply. The V+ and V- pins are used to supply the op-amp with the required voltage levels. The +IN and -IN are the input pins where the signals to be amplified are connected. The amplified signal is then outputted through the Output pin. The op-amp is designed with a very low input offset voltage, high gain, and low quiescent current.
FAQ – 20 Common Questions about the OPA197IDBVR
Q: What is the supply voltage range for the OPA197IDBVR? A: The OPA197IDBVR can operate with a supply voltage range from 2.7V to 36V or ±1.35V to ±18V.
Q: Can I use the OPA197IDBVR with a single supply voltage? A: Yes, the OPA197IDBVR is designed to operate with a single or dual supply voltage.
Q: What is the maximum output voltage swing of the OPA197IDBVR? A: The output voltage swing of the OPA197IDBVR is typically within 0.05V to V+ - 0.05V, depending on the load.
Q: What is the input bias current of the OPA197IDBVR? A: The input bias current of the OPA197IDBVR is typically 1pA (at 25°C).
Q: What is the common-mode rejection ratio (CMRR) of the OPA197IDBVR? A: The CMRR of the OPA197IDBVR is typically 120dB.
Q: How do I properly connect the power supply pins (V+ and V-)? A: Connect the V+ pin to the positive power supply and the V- pin to the negative power supply or ground, depending on whether you're using single or dual supplies.
Q: Can I use the OPA197IDBVR for high-speed applications? A: The OPA197IDBVR is a precision op-amp designed for low-speed applications and may not be suitable for very high-speed applications.
Q: What is the typical input offset voltage of the OPA197IDBVR? A: The typical input offset voltage of the OPA197IDBVR is 25µV.
Q: What is the package type for the OPA197IDBVR? A: The OPA197IDBVR is in an SOIC-8 package.
Q: How can I reduce power consumption when using the OPA197IDBVR? A: The OPA197IDBVR has low quiescent current. Ensure that you operate it within the recommended supply voltage range to maintain low power consumption.
Q: Can I leave the NC pins unconnected? A: Yes, the NC pins are not internally connected and can be left unconnected.
Q: What is the gain bandwidth product of the OPA197IDBVR? A: The gain bandwidth product is typically 1.3 MHz.
Q: What is the recommended load impedance for the OPA197IDBVR? A: The recommended load impedance is greater than 10kΩ for optimal performance.
Q: What is the output current limit of the OPA197IDBVR? A: The output current limit is typically 10mA.
Q: What is the thermal shutdown feature of the OPA197IDBVR? A: The OPA197IDBVR includes thermal shutdown protection to prevent overheating under extreme conditions.
Q: Can I use the OPA197IDBVR in automotive applications? A: The OPA197IDBVR is rated for industrial temperature ranges and may be used in automotive applications depending on the requirements.
Q: Does the OPA197IDBVR require external compensation? A: No, the OPA197IDBVR does not require external compensation; it is internally compensated for stability.
Q: How do I minimize noise in the OPA197IDBVR circuit? A: Proper PCB layout with decoupling capacitor s on the power supply pins and short signal traces can help minimize noise.
Q: What is the input impedance of the OPA197IDBVR? A: The input impedance of the OPA197IDBVR is typically 1012Ω.
Q: How do I connect the +IN and -IN pins in a non-inverting amplifier configuration? A: In a non-inverting configuration, the +IN pin is connected to the input signal, and the -IN pin is connected to a resistor network that sets the gain.
These details provide comprehensive insight into the OPA197IDBVR and its application.
