Overview
The AD810AN, produced by Analog Devices Inc., is a composite and HDTV-compatible, current feedback, video operational amplifier. It is designed for high-performance video and data acquisition systems, making it ideal for applications such as multimedia, digital tape recorders, and video cameras. The AD810AN offers a high bandwidth of 80 MHz at unity gain and maintains this bandwidth over a wide range of gains, making it suitable for various video processing tasks.
Key Specifications
| Parameter | Conditions | Typical | Units |
|---|---|---|---|
| -3 dB Bandwidth (G = +1) | TA = 25°C, VS = ±15 V dc, RL = 150 Ω | 80 MHz | MHz |
| -3 dB Bandwidth (G = +2) | TA = 25°C, VS = ±15 V dc, RL = 150 Ω | 30 MHz | MHz |
| Differential Gain | NTSC, G = +2, RL = 150 Ω | 0.02% | % |
| Differential Phase | NTSC, G = +2, RL = 150 Ω | 0.04° | ° |
| Input Voltage Noise | TA = 25°C | 2.9 nV/√Hz | nV/√Hz |
| Inverting Input Current Noise | TA = 25°C | 13 pA/√Hz | pA/√Hz |
| Supply Current | VS = ±15 V dc | 8.0 mA (max) | mA |
| Supply Current (Power-Down Mode) | VS = ±15 V dc | 2.1 mA | mA |
| Output Voltage Swing | VS = ±5 V, RL = 150 Ω | ±2.9 V | V |
| Disable Time | VS = ±5 V, using complementary output CMOS | 100 ns | ns |
| Enable Time | VS = ±5 V, using complementary output CMOS | 750 ns (max) | ns |
Key Features
- High-speed operation with a typical -3 dB bandwidth of 80 MHz at unity gain and 30 MHz at a gain of +2.
- Low differential gain and phase errors (0.02% and 0.04° respectively) for high-quality video signals.
- Low noise of 2.9 nV/√Hz, suitable for wide dynamic range applications.
- Low power supply current of 8.0 mA maximum and 2.1 mA in power-down mode, ideal for power-sensitive applications.
- Flexible operation over a power supply range of ±5 V to ±15 V.
- High performance disable function with a turn-off time of 100 ns and an enable time of up to 750 ns.
- Input to output isolation of 64 dB in the disabled state.
- Ability to drive capacitive loads exceeding 1000 pF directly without oscillation.
Applications
- Professional video cameras and multimedia systems.
- Digital tape recorders and other video recording devices.
- NTSC, PAL, and SECAM compatible systems.
- Video line drivers and ADC/DAC buffers in video systems.
- DC restoration circuits and other high-speed signal processing applications.
Q & A
- What is the typical -3 dB bandwidth of the AD810AN at unity gain?
The typical -3 dB bandwidth of the AD810AN at unity gain is 80 MHz.
- What are the differential gain and phase errors of the AD810AN?
The differential gain and phase errors are 0.02% and 0.04° respectively.
- What is the input voltage noise of the AD810AN?
The input voltage noise is 2.9 nV/√Hz.
- What is the maximum supply current of the AD810AN?
The maximum supply current is 8.0 mA.
- What is the supply current in power-down mode?
The supply current in power-down mode is 2.1 mA.
- What is the output voltage swing of the AD810AN into a 150 Ω load?
The output voltage swing is ±2.9 V when the supply voltage is ±5 V.
- How long does it take for the AD810AN to disable?
The disable time is approximately 100 ns using complementary output CMOS logic.
- What is the input to output isolation in the disabled state?
The input to output isolation is 64 dB in the disabled state.
- Can the AD810AN drive capacitive loads directly?
Yes, the AD810AN can drive capacitive loads exceeding 1000 pF directly without oscillation.
- In what power supply range can the AD810AN operate?
The AD810AN can operate over a power supply range of ±5 V to ±15 V.
