OPA188AIDGKR

The OPA188AIDGKR is a precision operational amplifier (op-amp) manufactured by Texas Instruments. It is designed for high-performance applications requiring low noise, low offset voltage, and high precision. Here’s a detailed description of its key features and specifications:

General Characteristics:

• Type: Precision Operational Amplifier
• Package: The OPA188AIDGKR comes in a small, surface-mount package known as the VSSOP (Very Thin Shrink Small Outline Package), which is designed for space-constrained applications.
• Pin Count: It typically has 8 pins, allowing for easy integration into various circuit designs.

Electrical Specifications:

• Supply Voltage: The op-amp can operate with a dual supply voltage ranging from ±2.5V to ±18V, or a single supply voltage from 5V to 36V, making it versatile for different applications.
• Input Offset Voltage: The OPA188 features an ultra-low input offset voltage, typically around 0.1 mV, which is crucial for precision applications.
• Input Bias Current: It has a very low input bias current, typically around 10 pA, which minimizes errors in high-impedance circuits.
• Common-Mode Rejection Ratio (CMRR): The CMRR is exceptionally high, typically around 130 dB, ensuring that variations in common-mode voltage do not affect the output significantly.
• Power Supply Rejection Ratio (PSRR): The PSRR is also high, typically around 120 dB, which helps maintain stable performance despite variations in supply voltage.

Performance Features:

• Gain Bandwidth Product: The OPA188 has a gain bandwidth product of approximately 1 MHz, allowing it to handle a variety of signal frequencies while maintaining stability.
• Slew Rate: The slew rate is around 0.1 V/µs, which is adequate for many precision applications but may limit performance in very high-speed scenarios.
• Output Drive Capability: It can drive loads of up to 10 kΩ, making it suitable for interfacing with various components in a circuit.

Applications:

The OPA188 is ideal for applications such as:

• Precision data acquisition systems
• Medical instrumentation
• Industrial process control
• High-accuracy signal conditioning
• Sensor signal amplification

Thermal Characteristics:

• Operating Temperature Range: The device operates over a wide temperature range, typically from -40°C to +125°C, making it suitable for both commercial and industrial applications.
• Thermal Resistance: The thermal resistance of the package is designed to ensure efficient heat dissipation, contributing to the reliability of the device in various operating conditions.

Conclusion:

The OPA188AIDGKR from Texas Instruments is a high-precision operational amplifier that combines low noise, low offset voltage, and high stability, making it an excellent choice for demanding applications in various fields, including medical, industrial, and consumer electronics. Its compact VSSOP package and robust electrical characteristics make it a versatile component for engineers looking to enhance the performance of their designs.