Overview
The AD8056AR, produced by Analog Devices Inc., is a low-cost, dual voltage feedback amplifier that offers high performance typically found in current feedback amplifiers. This amplifier is known for its ease of use and excellent overall performance despite its low cost. It features a wide bandwidth of 300 MHz, a high slew rate of 1400 V/µs, and a fast settling time of 20 ns to 0.1%. These characteristics make it suitable for a variety of high-speed applications, including video processing and portable electronics.
Key Specifications
| Parameter | Value |
|---|---|
| Bandwidth | 300 MHz (−3 dB, G = +1) |
| Slew Rate | 1400 V/µs |
| Settling Time | 20 ns to 0.1% |
| Differential Gain Error | 0.01% (NTSC, G = +2, RL = 150 Ω), 0.02% (NTSC, G = +2, RL = 37.5 Ω) |
| Differential Phase Error | 0.02° (NTSC, G = +2, RL = 150 Ω), 0.1° (NTSC, G = +2, RL = 37.5 Ω) |
| Input Offset Voltage | 3 mV (max) |
| Input Bias Current | 0.4 µA to 1.2 µA |
| Supply Current | 5 mA typ/amplifier |
| Output Current | Over 60 mA |
| Supply Voltage | Dual ±5 V or single +12 V |
| Operating Temperature Range | −40°C to +125°C |
| Package | 8-lead PDIP, 8-lead SOIC, 8-lead MSOP |
Key Features
- High bandwidth and slew rate, making it suitable for high-speed applications.
- Low differential gain and phase error, ideal for video applications.
- Low power consumption with a supply current of 5 mA per amplifier.
- High output drive current of over 60 mA.
- Compact packaging options including 8-lead PDIP, SOIC, and MSOP.
- Wide operating temperature range of −40°C to +125°C.
- Low noise and distortion, with 6 nV/√Hz input voltage noise and −72 dBc total harmonic distortion at 10 MHz.
Applications
- Video line drivers and video switchers.
- Professional cameras and imaging systems.
- Photodiode preamps.
- Differential line drivers.
- Active filters and special effects in video processing.
- A-to-D drivers.
- Portable and battery-powered electronics where size and power are critical.
Q & A
- What is the bandwidth of the AD8056AR amplifier?
The AD8056AR has a bandwidth of 300 MHz (−3 dB, G = +1).
- What is the slew rate of the AD8056AR?
The slew rate of the AD8056AR is 1400 V/µs.
- What is the settling time of the AD8056AR?
The settling time of the AD8056AR is 20 ns to 0.1%.
- What are the differential gain and phase errors of the AD8056AR in video applications?
The differential gain error is 0.01% (NTSC, G = +2, RL = 150 Ω) and 0.02% (NTSC, G = +2, RL = 37.5 Ω), while the differential phase error is 0.02° (NTSC, G = +2, RL = 150 Ω) and 0.1° (NTSC, G = +2, RL = 37.5 Ω).
- What is the input offset voltage of the AD8056AR?
The input offset voltage is 3 mV (max).
- What is the supply current of the AD8056AR?
The supply current is 5 mA per amplifier.
- What is the output current capability of the AD8056AR?
The AD8056AR can deliver over 60 mA of load current.
- What are the available package options for the AD8056AR?
The AD8056AR is available in 8-lead PDIP, 8-lead SOIC, and 8-lead MSOP packages.
- What is the operating temperature range of the AD8056AR?
The operating temperature range is −40°C to +125°C.
- What are some typical applications of the AD8056AR?
Typical applications include video line drivers, professional cameras, photodiode preamps, differential line drivers, active filters, and portable electronics.
