Overview
The AD8047ARZ, produced by Analog Devices Inc., is a high-speed, wide bandwidth voltage feedback operational amplifier. This device is unity gain stable and combines the best characteristics of both current feedback and voltage feedback amplifiers. It is designed to meet the requirements of various high-speed applications, including those that previously relied on current feedback amplifiers. The AD8047ARZ is known for its fast and accurate pulse response, extremely wide small and large signal bandwidths, and low distortion, making it an ideal choice for a range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth (Small Signal) | 250 MHz | |
| Bandwidth (Large Signal) | 130 MHz (2 V p-p) | |
| Supply Current | 5.8 mA (typical) | |
| Supply Voltage | ±3 V to ±6 V | |
| Input Offset Voltage | 1 mV | |
| Input Bias Current | 1 µA | |
| Slew Rate | 750 V/µs | |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | 8-Lead SOIC | |
| Distortion (SFDR) | -54 dBc at 20 MHz | |
| Input Voltage Noise | 5.2 nV/√Hz at f = 100 kHz | |
| Settling Time | 30 ns to 0.01% (2 V step) |
Key Features
- High-speed and wide bandwidth operation, making it suitable for applications requiring fast signal processing.
- Unity gain stable, allowing for flexible use in various circuit configurations.
- Low distortion and high signal-to-noise ratio, achieving -54 dBc distortion at 20 MHz.
- Fast settling time of 30 ns to 0.01% for a 2 V step, ensuring rapid response to input changes.
- Ability to drive capacitive loads up to 50 pF.
- High slew rate of 750 V/µs, enabling the amplifier to handle high-frequency signals efficiently.
- Low power consumption with a typical supply current of 5.8 mA.
- Operating temperature range from -40°C to 85°C, suitable for industrial applications.
Applications
- Low power ADC input drivers: Ideal for driving high-speed analog-to-digital converters (ADCs) due to its low distortion and fast settling time.
- Differential amplifiers: Suitable for applications requiring high accuracy and low noise.
- IF/RF amplifiers: Used in intermediate frequency and radio frequency amplification due to its high bandwidth and low distortion.
- Pulse amplifiers: Effective in amplifying high-speed pulse signals with minimal distortion.
- Professional video: Used in video processing and transmission systems requiring high bandwidth and low distortion.
- DAC current to voltage conversion: Ideal for converting digital-to-analog converter (DAC) outputs to analog signals.
- Baseband and video communications: Suitable for various communication systems requiring high-speed signal processing.
- Pin diode receivers: Used in optical communication systems for amplifying signals from photodiodes.
- Active filters/integrators: Effective in designing active filters and integrators due to its high bandwidth and low noise characteristics.
Q & A
- What is the bandwidth of the AD8047ARZ operational amplifier?
The AD8047ARZ has a small signal bandwidth of 250 MHz and a large signal bandwidth of 130 MHz (2 V p-p).
- What is the typical supply current of the AD8047ARZ?
The typical supply current of the AD8047ARZ is 5.8 mA.
- What is the slew rate of the AD8047ARZ?
The slew rate of the AD8047ARZ is 750 V/µs.
- What is the operating temperature range of the AD8047ARZ?
The operating temperature range of the AD8047ARZ is from -40°C to 85°C.
- What type of package is the AD8047ARZ available in?
The AD8047ARZ is available in an 8-Lead SOIC package.
- What is the input offset voltage of the AD8047ARZ?
The input offset voltage of the AD8047ARZ is 1 mV.
- Can the AD8047ARZ drive capacitive loads?
Yes, the AD8047ARZ can drive capacitive loads up to 50 pF.
- What are some typical applications of the AD8047ARZ?
Typical applications include low power ADC input drivers, differential amplifiers, IF/RF amplifiers, pulse amplifiers, professional video, DAC current to voltage conversion, baseband and video communications, pin diode receivers, and active filters/integrators.
- What is the distortion performance of the AD8047ARZ?
The AD8047ARZ achieves -54 dBc distortion at 20 MHz and has a low harmonic distortion profile.
- How long does the AD8047ARZ take to settle to 0.01% accuracy?
The AD8047ARZ has a settling time of 30 ns to 0.01% for a 2 V step.
