Overview
The OPA2131UA/2K5 is a dual, general-purpose, FET-input operational amplifier produced by Texas Instruments. This device is part of the OPAx131 series, known for its high performance at a low cost. The OPA2131UA/2K5 is particularly suited for applications requiring low noise, low power consumption, and high accuracy.
It features a dual amplifier configuration in an 8-pin SOIC package, making it versatile for various electronic circuits. The device is widely used in audio applications, such as improving tone control, due to its low noise and high fidelity characteristics.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (Dual Supply) | ±4.5 | ±15 | ±18 | V |
| Supply Voltage (Single Supply) | 9 | 30 | 36 | V |
| Input Offset Voltage (VOS) | ±0.2 | - | ±1.5 | mV |
| Input Offset Voltage Drift (dVOS/dT) | ±2 | - | ±10 | μV/°C |
| Power-Supply Rejection Ratio (PSRR) | ±50 | - | ±200 | μV/V |
| Input Bias Current (IB) | ±5 | - | ±50 | pA |
| Bandwidth | - | - | 4 MHz | - |
| Slew Rate | - | - | 10 V/μs | - |
| Operating Temperature | -55 | - | 125 | °C |
| Storage Temperature | -55 | - | 125 | °C |
Key Features
- Low Noise: The OPA2131UA/2K5 is designed with low noise characteristics, making it suitable for high-fidelity audio applications.
- Low Power Consumption: The device operates with a low power consumption of approximately 750 μA per amplifier, which is beneficial for battery-powered devices.
- FET-Input: The FET-input stage provides high input impedance and low input bias current, typically around ±50 pA.
- Rail-to-Rail Output Swing: The amplifier can drive loads to within a few millivolts of the supply rails, enhancing its versatility in various circuit designs.
- High Bandwidth and Slew Rate: With a bandwidth of 4 MHz and a slew rate of 10 V/μs, the OPA2131UA/2K5 is capable of handling high-frequency signals efficiently.
- Compact Packaging: The device is available in an 8-pin SOIC package, making it suitable for space-constrained designs.
Applications
- Audio Equipment: The OPA2131UA/2K5 is often used in audio circuits to improve tone control and provide high-fidelity signal amplification.
- Medical Devices: Its low noise and high accuracy make it suitable for medical equipment such as ECG and EEG machines.
- Industrial Control Systems: The device can be used in various industrial control systems where precision and reliability are crucial.
- Test and Measurement Equipment: It is used in test and measurement instruments due to its high performance and stability.
- Battery-Powered Devices: The low power consumption of the OPA2131UA/2K5 makes it an excellent choice for battery-powered devices.
Q & A
- What is the supply voltage range for the OPA2131UA/2K5?
The supply voltage range for the OPA2131UA/2K5 is ±4.5V to ±18V for dual supply and 9V to 36V for single supply.
- What is the typical input bias current of the OPA2131UA/2K5?
The typical input bias current is around ±50 pA.
- What is the bandwidth of the OPA2131UA/2K5?
The bandwidth of the OPA2131UA/2K5 is 4 MHz.
- What is the slew rate of the OPA2131UA/2K5?
The slew rate of the OPA2131UA/2K5 is 10 V/μs.
- What is the operating temperature range for the OPA2131UA/2K5?
The operating temperature range is from -55°C to 125°C.
- What type of package does the OPA2131UA/2K5 come in?
The OPA2131UA/2K5 comes in an 8-pin SOIC package.
- Is the OPA2131UA/2K5 RoHS compliant?
- What are some common applications of the OPA2131UA/2K5?
- What is the input offset voltage of the OPA2131UA/2K5?
- How much power does the OPA2131UA/2K5 consume?
