Overview
The AD811ANZ, 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 with a −3 dB bandwidth of 120 MHz at a gain of +2 and excellent differential gain and phase accuracy of 0.01% and 0.01°, respectively, when driving a 150 Ω load. This amplifier is suitable for various high-performance video and data acquisition applications due to its low distortion, wide unity gain bandwidth, and excellent dc precision.
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 (0.1%, 2 V step) | 25 ns |
| Settling Time (0.01%, 10 V step) | 65 ns |
| 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 |
| Output Swing (into 75 Ω load, VS = ±5 V) | ±2.3 V |
| Package Types | 8-Lead PDIP, 8-Lead SOIC, 16-Lead SOIC Wide, 20-Terminal LCC |
Key Features
- High-speed operation with a bandwidth of up to 140 MHz at a gain of +1.
- Low differential gain and phase errors (0.01% and 0.01° at RL = 150 Ω).
- High slew rate of 2500 V/µs and fast settling times.
- Low distortion up to 10 MHz and wide unity gain bandwidth.
- Excellent dc precision with a maximum input offset voltage of 3 mV.
- Flexible operation over a wide power supply range (±4.5 V to ±18 V).
- Low power supply current of 16.5 mA.
Applications
- Video crosspoint switchers and multimedia broadcast systems.
- HDTV compatible systems and video line drivers.
- Video 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 AD811ANZ?
The AD811ANZ is primarily used in broadcast-quality video systems and high-performance video applications. - What is the bandwidth of the AD811ANZ at a gain of +2?
The bandwidth is 120 MHz at a gain of +2. - What is the slew rate of the AD811ANZ?
The slew rate is greater than 2500 V/µs. - What is the settling time for a 2 V step to 0.1% accuracy?
The settling time is less than 25 ns. - What is the input offset voltage of the AD811ANZ?
The maximum input offset voltage is 3 mV. - What are the typical power supply voltages for the AD811ANZ?
The AD811ANZ is specified over a power supply range of ±4.5 V to ±18 V. - What are some common package types for the AD811ANZ?
Common package types include 8-Lead PDIP, 8-Lead SOIC, 16-Lead SOIC Wide, and 20-Terminal LCC. - Is the AD811ANZ suitable for medical applications?
Yes, it is suitable for medical ultrasound and other medical applications due to its high performance and low noise characteristics. - Can the AD811ANZ be used in data acquisition systems?
Yes, it is ideal as an ADC or DAC buffer in data acquisition systems due to its low distortion and wide unity gain bandwidth. - What is the differential gain and phase accuracy of the AD811ANZ?
The differential gain and phase accuracy are 0.01% and 0.01°, respectively, at RL = 150 Ω.
