Overview
The AD8055ARZ, produced by Analog Devices Inc., is a single, low-cost, 300 MHz voltage feedback amplifier. It offers high performance characteristics typically found in current feedback amplifiers, such as wide bandwidth and high slew rate, but with the ease of use and cost-effectiveness of a voltage feedback amplifier. This amplifier is particularly suited for high-speed applications, including video and imaging, due to its excellent differential gain and phase error, low noise, and high output drive capability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Bandwidth | - | 300 | - | MHz |
| Slew Rate | - | 1400 | - | V/μs |
| Settling Time | - | 20 | - | ns |
| Differential Gain Error (NTSC, G = +2, RL = 150 Ω) | - | 0.01% | - | % |
| Differential Phase Error (NTSC, G = +2, RL = 150 Ω) | - | 0.02° | - | ° |
| Input Offset Voltage | 3 | 5 | 10 | mV |
| Input Bias Current | 0.4 | 1.2 | 1 | μA |
| Open-Loop Gain (VO = ±2.5 V) | 64 | 66-71 | - | dB |
| Input Resistance | - | 10 | - | MΩ |
| Input Capacitance | - | 2 | - | pF |
| Output Voltage Swing (RL = 150 Ω) | 2.9 | 3.1 | - | V |
| Output Current (VO = ±2.0 V) | 55 | 60 | - | mA |
| Short-Circuit Current | - | 110 | - | mA |
| Quiescent Current | 5.4 | 6.5 | 7.6 | mA |
| Power Supply Range | ±4.0 | ±5.0 | ±6.0 | V |
| Operating Temperature Range | -40 | - | 125 | °C |
Key Features
- Low cost and high performance, offering bandwidth and slew rate typically found in current feedback amplifiers.
- Excellent differential gain and phase error: 0.01% and 0.02° into a 150 Ω load, and 0.02% and 0.1° while driving four video loads (37.5 Ω).
- Wide bandwidth out to 300 MHz and high slew rate of 1400 V/μs.
- Low power consumption: 5 mA typical supply current per amplifier.
- Operates on dual ±5 V or single +12 V power supply, capable of delivering over 60 mA of load current.
- Available in small packages: 8-lead PDIP, 8-lead SOIC, and 5-lead SOT-23.
- Ideal for portable and battery-powered applications due to its small size and low power requirements.
- Extended temperature range: -40°C to +125°C for certain packages.
Applications
- Video line drivers and video switchers.
- Professional cameras and imaging systems.
- Photodiode preamps.
- Differential line drivers.
- Active filters and A-to-D drivers.
- Special effects in video processing.
Q & A
- What is the bandwidth of the AD8055ARZ amplifier?
The AD8055ARZ has a bandwidth of 300 MHz. - What is the slew rate of the AD8055ARZ?
The slew rate of the AD8055ARZ is 1400 V/μs. - What are the differential gain and phase errors of the AD8055ARZ for video applications?
The differential gain error is 0.01% and the differential phase error is 0.02° into a 150 Ω load. For four video loads (37.5 Ω), the differential gain error is 0.02% and the differential phase error is 0.1°. - What is the typical supply current of the AD8055ARZ?
The typical supply current of the AD8055ARZ is 5 mA per amplifier. - What power supply options are available for the AD8055ARZ?
The AD8055ARZ can operate on dual ±5 V or a single +12 V power supply. - What is the maximum output current of the AD8055ARZ?
The AD8055ARZ can deliver over 60 mA of load current. - In what packages is the AD8055ARZ available?
The AD8055ARZ is available in 8-lead PDIP, 8-lead SOIC, and 5-lead SOT-23 packages. - What is the operating temperature range of the AD8055ARZ?
The operating temperature range of the AD8055ARZ is -40°C to +125°C for certain packages. - Is the AD8055ARZ suitable for portable and battery-powered applications?
Yes, the AD8055ARZ is ideal for portable and battery-powered applications due to its low power consumption and small package size. - What are some common applications of the AD8055ARZ?
The AD8055ARZ is commonly used in video line drivers, professional cameras, photodiode preamps, differential line drivers, active filters, and A-to-D drivers.
