Overview
The AD8065ART-REEL, produced by Analog Devices Inc., is a high-performance operational amplifier (op amp) that belongs to the FastFET™ family. This single amplifier is part of the AD8065 series, which is known for its voltage feedback architecture and FET inputs. Developed using Analog Devices' proprietary XFCB process, the AD8065 offers exceptional low noise operation, high input impedance, and a wide supply voltage range from 5 V to 24 V. It is designed to operate on single supplies and features rail-to-rail outputs, making it versatile for various applications. Despite its low cost, the AD8065 provides excellent overall performance, including high bandwidth, low differential gain and phase errors, and a high slew rate, making it ideal for video and other high-speed applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Bandwidth (–3 dB) | G = +1, VO = 0.2 V p-p | 100 | 145 | MHz | |
| Bandwidth for 0.1 dB Flatness | G = +2, VO = 0.2 V p-p | 7 | MHz | ||
| Slew Rate | G = +2, VO = 4 V step | 130 | 180 | V/μs | |
| Input Voltage Noise | f = 10 kHz | 7 | nV/√Hz | ||
| Input Current Noise | f = 10 kHz | 0.6 | fA/√Hz | ||
| Differential Gain Error (NTSC) | G = +2, RL = 150 Ω | 0.02% | |||
| Differential Phase Error (NTSC) | G = +2, RL = 150 Ω | 0.02° | |||
| Input Offset Voltage | VCM = 0 V, SOIC package | 0.4 | 1.5 | mV | |
| Supply Voltage Range | 5 | 24 | V | ||
| Quiescent Current per Amplifier | 6.4 | 7.2 | mA |
Key Features
- High Bandwidth: Up to 145 MHz bandwidth, making it suitable for high-speed applications.
- Low Noise Operation: Exceptionally low input voltage noise (7.0 nV/√Hz) and input current noise (0.6 fA/√Hz).
- High Input Impedance: Very high common-mode input impedance.
- Wide Supply Voltage Range: Operates from 5 V to 24 V, including single supply operation.
- Rail-to-Rail Outputs: Provides full output swing, enhancing versatility.
- High Slew Rate: Up to 180 V/μs, ensuring fast response times.
- Low Differential Gain and Phase Errors: 0.02% and 0.02° respectively, ideal for video applications.
- Excellent Distortion Performance: Spurious Free Dynamic Range (SFDR) of −88 dBc @ 1 MHz.
Applications
- Video Applications: Ideal due to its low differential gain and phase errors, and 0.1 dB flatness out to 7 MHz.
- High-Speed Signal Processing: Suitable for applications requiring high bandwidth and low noise.
- Professional Audio and Video Equipment: High slew rate and low distortion make it suitable for professional audio and video systems.
- Medical Imaging and Diagnostic Equipment: High performance and low noise are beneficial in medical imaging applications.
- Industrial Control Systems: Can be used in various industrial control systems requiring high accuracy and speed.
Q & A
- What is the bandwidth of the AD8065?
The AD8065 has a bandwidth of up to 145 MHz for a gain of +1 and 0.2 V p-p output voltage.
- What is the input voltage noise of the AD8065?
The input voltage noise is 7.0 nV/√Hz at 10 kHz.
- What is the slew rate of the AD8065?
The slew rate is up to 180 V/μs for a gain of +2 and a 4 V step output voltage.
- What is the differential gain error of the AD8065?
The differential gain error is 0.02% for NTSC, with a gain of +2 and a load resistance of 150 Ω.
- What is the supply voltage range of the AD8065?
The AD8065 operates from 5 V to 24 V, including single supply operation.
- What are the typical applications of the AD8065?
The AD8065 is ideal for video applications, high-speed signal processing, professional audio and video equipment, medical imaging, and industrial control systems.
- What is the quiescent current per amplifier for the AD8065?
The quiescent current per amplifier is typically 6.4 mA to 7.2 mA.
- Does the AD8065 have rail-to-rail outputs?
Yes, the AD8065 features rail-to-rail outputs, providing full output swing.
- What is the input current noise of the AD8065?
The input current noise is 0.6 fA/√Hz at 10 kHz.
- What is the common-mode input impedance of the AD8065?
The common-mode input impedance is very high, typically 1000 GΩ || 2.1 pF.
