The OPA2134UA/2K5 is an operational amplifier (op-amp) integrated circuit (IC) produced by Texas Instruments. It is designed for precision applications and features low noise, low offset, and high precision.
The OPA2134UA/2K5 comes in a dual op-amp configuration and uses the SOIC-8 package (Small Outline Integrated Circuit with 8 pins). Here is a detailed explanation of the pin function specifications, pinout, and FAQs.
Pin Function Specifications
The OPA2134UA/2K5 is an 8-pin op-amp IC with the following pinout configuration:
Pin Number Pin Name Description 1 V+ Positive supply voltage pin. This pin connects to the positive power supply. 2 Inverting Input (A) Inverting input of the first op-amp (A). This pin receives the input signal through an inverting configuration. 3 Non-Inverting Input (A) Non-inverting input of the first op-amp (A). This pin receives the input signal through a non-inverting configuration. 4 V- Negative supply voltage pin. This pin connects to the negative power supply. 5 Non-Inverting Input (B) Non-inverting input of the second op-amp (B). This pin receives the input signal through a non-inverting configuration. 6 Inverting Input (B) Inverting input of the second op-amp (B). This pin receives the input signal through an inverting configuration. 7 Output (A) Output of the first op-amp (A). This pin provides the amplified signal from the first op-amp. 8 Output (B) Output of the second op-amp (B). This pin provides the amplified signal from the second op-amp.Pinout Details and Instructions for Usage
The OPA2134UA/2K5 has the following specifications for each pin:
V+ (Pin 1): Connect to the positive voltage supply (typically between +2.7V and +36V depending on your circuit configuration). Inverting Input (A) (Pin 2): This is the inverting input for the first op-amp (A). When used in an inverting configuration, this pin will receive the input signal, and the output will be inverted. Non-Inverting Input (A) (Pin 3): This is the non-inverting input for the first op-amp (A). It is where the input signal is fed when the op-amp is used in a non-inverting configuration. V- (Pin 4): Connect to the negative voltage supply (typically between -2.7V and -36V, or ground if single-supply). Non-Inverting Input (B) (Pin 5): This is the non-inverting input for the second op-amp (B). It will receive the input signal for the second op-amp when used in a non-inverting configuration. Inverting Input (B) (Pin 6): This is the inverting input for the second op-amp (B). Similar to the first op-amp, this pin is where the input signal will be inverted. Output (A) (Pin 7): This is the output of the first op-amp (A). The amplified signal from the first op-amp will appear here. Output (B) (Pin 8): This is the output of the second op-amp (B). The amplified signal from the second op-amp will appear here.Circuit Principle and Usage:
The OPA2134UA/2K5 is a precision op-amp commonly used in applications requiring high accuracy, low offset, and low noise, such as audio systems, instrumentation, and sensor interface s.
In an inverting configuration, the input signal is fed into the inverting input (Pin 2 or Pin 6) through a resistor, while the non-inverting input (Pin 3 or Pin 5) is usually grounded. The output from Pin 7 or Pin 8 will be an amplified version of the input signal but inverted. In a non-inverting configuration, the input signal is fed into the non-inverting input (Pin 3 or Pin 5), and the inverting input (Pin 2 or Pin 6) is connected to the feedback network, which controls the gain.20 FAQ for OPA2134UA/2K5
Q: What is the supply voltage range for the OPA2134UA/2K5? A: The supply voltage range for the OPA2134UA/2K5 is between 2.7V and 36V (dual supply) or ±1.35V to ±18V (single supply).
Q: What is the purpose of the V+ and V- pins (Pin 1 and Pin 4)? A: The V+ and V- pins are used to connect the positive and negative supply voltages to the op-amp.
Q: What is the gain-bandwidth product of the OPA2134UA/2K5? A: The gain-bandwidth product is 8 MHz for the OPA2134UA/2K5.
Q: Can I use the OPA2134UA/2K5 with a single power supply? A: Yes, the OPA2134UA/2K5 can be used with a single power supply. The V- pin can be connected to ground in such cases.
Q: What is the input offset voltage of the OPA2134UA/2K5? A: The input offset voltage of the OPA2134UA/2K5 is typically 25 µV and a maximum of 50 µV.
Q: What is the typical noise performance of the OPA2134UA/2K5? A: The OPA2134UA/2K5 offers low noise performance with a typical voltage noise density of 2.5 nV/√Hz at 1 kHz.
Q: What is the current consumption of the OPA2134UA/2K5? A: The typical current consumption of the OPA2134UA/2K5 is 1.4 mA per channel.
Q: How do I connect the OPA2134UA/2K5 in a differential amplifier configuration? A: In a differential amplifier configuration, connect the two input signals to the non-inverting input (Pin 3) and the inverting input (Pin 2) with appropriate resistors. The output will provide the difference between the two signals.
Q: What is the output drive capability of the OPA2134UA/2K5? A: The OPA2134UA/2K5 can drive loads down to 10 kΩ with minimal distortion and can output up to 10 mA of current.
Q: How should I use the OPA2134UA/2K5 in an audio application? A: In audio applications, you can use the OPA2134UA/2K5 in a voltage follower or a buffer configuration to ensure high fidelity and low distortion in the signal.
Q: Can the OPA2134UA/2K5 operate in rail-to-rail mode? A: Yes, the OPA2134UA/2K5 is a rail-to-rail op-amp, which means the output can swing very close to the supply rails.
Q: What is the total harmonic distortion (THD) of the OPA2134UA/2K5? A: The total harmonic distortion (THD) is typically 0.00003% at 1 kHz.
Q: What is the recommended operating temperature range for the OPA2134UA/2K5? A: The operating temperature range is -40°C to +125°C.
Q: Can I use the OPA2134UA/2K5 in a high-speed application? A: While the OPA2134UA/2K5 is precise, it is not designed for very high-speed applications. For faster op-amps, consider models with higher gain-bandwidth.
Q: Is the OPA2134UA/2K5 available in different package types? A: Yes, the OPA2134UA/2K5 is available in multiple package types, including SOIC-8, PDIP, and others.
Q: How should I handle the OPA2134UA/2K5 in an ESD-sensitive environment? A: Always follow proper electrostatic discharge (ESD) precautions, including using antistatic wrist straps and placing the IC in an ESD-safe environment.
Q: Can I use the OPA2134UA/2K5 in a voltage follower (buffer) configuration? A: Yes, the OPA2134UA/2K5 is commonly used as a voltage follower in buffer applications due to its high precision and low offset.
Q: How do I calculate the gain in a non-inverting configuration using the OPA2134UA/2K5? A: The gain in a non-inverting configuration is calculated as ( 1 + \frac{Rf}{R{in}} ), where ( Rf ) is the feedback resistor, and ( R{in} ) is the input resistor.
Q: Can the OPA2134UA/2K5 be used for precision voltage reference circuits? A: Yes, the OPA2134UA/2K5 is ideal for precision voltage reference circuits due to its low offset voltage and high accuracy.
Q: What is the lifespan of the OPA2134UA/2K5 under normal operating conditions? A: The OPA2134UA/2K5 is designed for long-term reliability with a typical lifespan of over 10 years when operated within the recommended parameters.
This explanation provides a thorough understanding of the OPA2134UA/2K5 operational amplifier, including detailed pin functionality, circuit principles, and common FAQs.