Overview
The OPA602AU/2K5G4, produced by Texas Instruments, is a high-speed precision Difet® operational amplifier. This monolithic Difet (dielectrically isolated FET) construction provides a unique combination of high-speed and accuracy, making it suitable for a variety of precision applications. The OPA602 is known for its wide bandwidth, high slew rate, and fast settling time, which are crucial for accurate signal processing in pulse and data conversion applications. Its laser-trimmed input circuitry ensures low offset voltage and drift performance, comparable to precision bipolar op amps.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage | ±5 | ±15 | ±18 | VDC |
| Internal Power Dissipation | 1000 | mW | ||
| Differential Input Voltage | ±10.2 | V | ||
| Input Offset Voltage | 0.5 | 1 | 1 | mV |
| Input Bias Current | ±1 | ±2 | pA | |
| Slew Rate | 20 | 35 | V/µs | |
| Settling Time (0.01% to 10V step) | 1.0 | µs | ||
| Gain Bandwidth Product | 3.5 | 6.5 | MHz | |
| Common-Mode Rejection Ratio | 75 | 100 | dB | |
| Operating Temperature Range | –25 | +85 | °C |
Key Features
- Wide bandwidth: 6.5 MHz, ensuring minimal dynamic errors.
- High slew rate: 35 V/µs, allowing for accurate signal processing in pulse and data conversion applications.
- Fast settling time: 1 µs to 0.01% for a 10V step, enhancing performance in transient response scenarios.
- Low offset voltage: ±250 µV max, and low drift performance, comparable to precision bipolar op amps.
- Extremely low input bias current: ±1 pA max, without compromising input voltage noise.
- Unity-gain stable and capable of driving capacitive loads up to 1500 pF.
- High common-mode rejection ratio: 88 dB to 100 dB, ensuring robust performance against common-mode noise.
Applications
- Precision instrumentation: Suitable for high-accuracy measurement and control systems.
- Optoelectronics: Ideal for applications involving light detection and conversion.
- Sonar and ultrasound: Used in high-frequency signal processing for sonar and ultrasound equipment.
- Professional audio equipment: Provides high fidelity and low distortion necessary for professional audio applications.
- Medical equipment: Used in medical devices requiring high precision and reliability.
- Data conversion: Effective in analog-to-digital and digital-to-analog converters due to its fast settling time and high slew rate.
Q & A
- What is the typical gain bandwidth product of the OPA602AU?
The typical gain bandwidth product of the OPA602AU is 6.5 MHz.
- What is the maximum input bias current of the OPA602AU?
The maximum input bias current of the OPA602AU is ±1 pA.
- What is the slew rate of the OPA602AU?
The slew rate of the OPA602AU is 35 V/µs.
- What is the settling time for a 10V step to 0.01% accuracy?
The settling time for a 10V step to 0.01% accuracy is 1 µs.
- What is the common-mode rejection ratio of the OPA602AU?
The common-mode rejection ratio of the OPA602AU is 88 dB to 100 dB.
- What is the maximum operating temperature range for the OPA602AU?
The maximum operating temperature range for the OPA602AU is –25°C to +85°C.
- Can the OPA602AU drive capacitive loads?
Yes, the OPA602AU is unity-gain stable and can drive capacitive loads up to 1500 pF.
- What are some typical applications of the OPA602AU?
Typical applications include precision instrumentation, optoelectronics, sonar and ultrasound, professional audio equipment, medical equipment, and data conversion.
- How should the OPA602AU be handled to avoid ESD damage?
The OPA602AU should be handled with appropriate ESD precautions to avoid damage. This includes using proper handling and installation procedures.
- What is the recommended circuit layout for optimal performance of the OPA602AU?
For optimal performance, careful circuit layout is necessary. Make short, direct interconnections and avoid stray wiring capacitance, especially at the inverting input pin. Power supplies should be bypassed with good high-frequency capacitors positioned close to the op amp pins.
