Overview
The AD811JR, produced by Analog Devices Inc., is a wideband current feedback operational amplifier optimized for broadcast-quality video systems. It is designed to provide high-speed performance, making it an excellent choice for various video and high-frequency applications. The amplifier is characterized by its high bandwidth, low distortion, and excellent dc precision, making it suitable for a range of applications including video crosspoint switchers, multimedia broadcast systems, and data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Bandwidth (−3 dB, G = +1) | 140 MHz |
| Bandwidth (−3 dB, G = +2) | 120 MHz |
| Bandwidth (0.1 dB, G = +2) | 35 MHz |
| Slew Rate | 2500 V/µs |
| Settling Time (to 0.1% on a 2 V step) | 25 ns |
| Settling Time (to 0.01% on a 10 V step) | 65 ns |
| Differential Gain and Phase (RL = 150 Ω) | 0.01%, 0.01° |
| Voltage Noise | 1.9 nV/√Hz |
| Input Offset Voltage | 3 mV max |
| Supply Voltage Range | ±4.5 V to ±18 V |
| Output Swing (into a 75 Ω load, VS = ±5 V) | ±2.3 V |
| Quiescent Current (±5 V) | 14.5 mA to 16.0 mA |
| Quiescent Current (±15 V) | 16.5 mA to 18.0 mA |
| Output Current | 100 mA |
| Package | 8-SOIC |
Key Features
- High-speed performance with a bandwidth of 140 MHz at a gain of +1 and 120 MHz at a gain of +2.
- Low distortion: THD = −74 dB at 10 MHz.
- Excellent video performance: 0.01% differential gain and 0.01° differential phase.
- Low voltage and current noise: 1.9 nV/√Hz and 20 pA/√Hz, respectively.
- Flexible operation: Specified for ±5 V and ±15 V power supplies.
- High slew rate: Greater than 2500 V/µs.
- Fast settling times: Less than 25 ns to 0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step.
Applications
- Video crosspoint switchers and multimedia broadcast systems.
- HDTV compatible systems and video line drivers.
- Distribution amplifiers and ADC/DAC buffers in data acquisition systems.
- DC restoration circuits and medical ultrasound applications.
- PET and Gamma Counter applications.
Q & A
- What is the primary application of the AD811JR? The AD811JR is primarily used in broadcast-quality video systems and high-frequency applications.
- What is the bandwidth of the AD811JR at a gain of +2? The bandwidth is 120 MHz at a gain of +2.
- What is the slew rate of the AD811JR? The slew rate is greater than 2500 V/µs.
- What are the settling times for the AD811JR? The settling times are less than 25 ns to 0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step.
- What is the differential gain and phase of the AD811JR? The differential gain and phase are 0.01% and 0.01°, respectively.
- What is the voltage noise of the AD811JR? The voltage noise is 1.9 nV/√Hz.
- What are the power supply voltage ranges for the AD811JR? The power supply voltage ranges are ±4.5 V to ±18 V.
- What is the output swing of the AD811JR into a 75 Ω load? The output swing is ±2.3 V when VS = ±5 V.
- What are some common applications of the AD811JR? Common applications include video crosspoint switchers, multimedia broadcast systems, HDTV compatible systems, and data acquisition systems.
- Is the AD811JR suitable for medical applications? Yes, it is suitable for medical ultrasound and other medical applications.
