OPA1604AIDR

The OPA1604AIDR is a precision operational amplifier (op-amp) manufactured by Texas Instruments. It is designed for high-performance applications requiring low noise, low distortion, and high bandwidth. Here’s a detailed description of its key features and specifications:

General Overview:

• Type: Precision Operational Amplifier
• Manufacturer: Texas Instruments
• Package Type: The OPA1604AIDR is available in a small, surface-mount package (SOT-23-5), which is ideal for space-constrained applications.

Key Features:

1. Low Noise: The OPA1604 boasts a low input voltage noise density of approximately 1.1 nV/√Hz at 1 kHz, making it suitable for applications where signal integrity is critical.

2. Low Distortion: It features low total harmonic distortion (THD) and intermodulation distortion (IMD), ensuring high fidelity in audio and other sensitive signal processing applications.

3. Wide Bandwidth: The op-amp has a gain bandwidth product of 10 MHz, allowing it to handle a wide range of frequencies effectively.

4. High Slew Rate: With a slew rate of 27 V/µs, the OPA1604 can respond quickly to rapid changes in input signals, making it suitable for fast signal processing.

5. Rail-to-Rail Output: The output stage is designed to swing close to the power supply rails, maximizing the output voltage range and making it versatile for various applications.

6. Low Supply Current: The device operates with a low supply current of around 1.5 mA per channel, which is beneficial for battery-powered and energy-efficient designs.

7. Wide Supply Voltage Range: It can operate on a dual supply voltage ranging from ±2.5 V to ±18 V, or a single supply from 5 V to 36 V, providing flexibility in design.

8. Input Common-Mode Voltage Range: The input common-mode voltage range extends from the negative supply rail to within 1.5 V of the positive supply rail, allowing for a wide range of input signal levels.

Applications:

The OPA1604 is suitable for a variety of applications, including:

• Audio signal processing
• Data acquisition systems
• Active filters
• Instrumentation amplifiers
• Medical devices
• High-precision measurement systems

Thermal and Electrical Characteristics:

• Operating Temperature Range: The device is rated for operation over a temperature range of -40°C to +125°C, making it suitable for industrial and automotive applications.
• Input Offset Voltage: The input offset voltage is typically around 50 µV, contributing to its precision performance.

Conclusion:

The OPA1604AIDR from Texas Instruments is a high-performance operational amplifier that combines low noise, low distortion, and a wide bandwidth in a compact package. Its versatility and precision make it an excellent choice for a wide range of applications, particularly in audio and instrumentation fields.