Overview
The AD811AN, produced by Analog Devices Inc., is a high-performance, wideband current feedback operational amplifier. It is specifically optimized for broadcast-quality video systems, offering exceptional performance in terms of bandwidth, differential gain and phase, and transient response. This amplifier is designed to meet stringent specifications, making it an excellent choice for various video and data acquisition applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| -3 dB Bandwidth | 120 MHz | G = +2 |
| -3 dB Bandwidth | 140 MHz | G = +1 |
| 0.1 dB Gain Flatness Bandwidth | 35 MHz | G = +2 |
| Slew Rate | > 2500 V/µs | |
| Settling Time (0.1% on a 2 V step) | < 25 ns | |
| Settling Time (0.01% on a 10 V step) | < 65 ns | |
| Differential Gain and Phase | 0.01%, 0.01° | RL = 150 Ω |
| Voltage Noise | 1.9 nV/√Hz | |
| Current Noise | 20 pA/√Hz | |
| Input Offset Voltage | 3 mV max | |
| Power Supply Range | ±4.5 V to ±18 V | |
| Power Supply Current | 16.5 mA |
Key Features
- High speed with a -3 dB bandwidth of up to 140 MHz at a gain of +1 and 120 MHz at a gain of +2.
- Excellent video performance with differential gain and phase errors of 0.01% and 0.01°, respectively.
- Low distortion, with a total harmonic distortion (THD) of -74 dB at 10 MHz.
- Fast settling times, with less than 25 ns to 0.1% on a 2 V step and less than 65 ns to 0.01% on a 10 V step.
- Low voltage and current noise, ensuring high signal integrity.
- Flexible operation over a wide range of supply voltages (±4.5 V to ±18 V).
- Ideal for ADC or DAC buffering in data acquisition systems due to its wide unity gain bandwidth and low distortion.
Applications
- Video crosspoint switchers and multimedia broadcast systems.
- HDTV compatible systems, video line drivers, and distribution amplifiers.
- ADC/DAC buffers in data acquisition systems.
- DC restoration circuits.
- Medical applications such as ultrasound and PET gamma counter systems.
Q & A
- What is the primary application of the AD811AN operational amplifier?
The AD811AN is primarily used in broadcast-quality video systems and high-performance data acquisition applications.
- What is the -3 dB bandwidth of the AD811AN at a gain of +2?
The -3 dB bandwidth of the AD811AN at a gain of +2 is 120 MHz.
- What are the differential gain and phase errors of the AD811AN?
The differential gain and phase errors are 0.01% and 0.01°, respectively, at a load resistance of 150 Ω.
- What is the slew rate of the AD811AN?
The slew rate of the AD811AN is greater than 2500 V/µs.
- How long does it take for the AD811AN to settle to 0.1% on a 2 V step?
The settling time to 0.1% on a 2 V step is less than 25 ns.
- What is the input offset voltage of the AD811AN?
The input offset voltage is 3 mV maximum.
- What is the power supply range for the AD811AN?
The AD811AN can operate over a power supply range of ±4.5 V to ±18 V.
- What is the typical power supply current of the AD811AN?
The typical power supply current is 16.5 mA.
- Is the AD811AN suitable for ADC or DAC buffering in data acquisition systems?
Yes, the AD811AN is ideal for ADC or DAC buffering due to its low distortion and wide unity gain bandwidth.
- What are some of the medical applications of the AD811AN?
The AD811AN is used in medical applications such as ultrasound and PET gamma counter systems.
