Overview
The AD8002AR from Analog Devices Inc. is a dual, low-power, high-speed current feedback amplifier designed to operate on ±5 V supplies. This device features unique transimpedance linearization circuitry, enabling it to drive video loads with excellent differential gain and phase performance while consuming only 50 mW of power per amplifier. The AD8002AR is ideal for professional video electronics, such as cameras and video switchers, as well as for buffering high-speed analog-to-digital converters (ADCs) due to its low distortion and fast settling time.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Circuits | 2 | |
| Amplifier Type | Current Feedback | |
| Slew Rate | 1200 V/µs | |
| -3 dB Bandwidth (G = +1) | 600 MHz | |
| -3 dB Bandwidth (G = +2) | 500 MHz | |
| Input Bias Current | 0.3 - 1.0 µA | |
| Input Offset Voltage | 2 mV | |
| Supply Current per Amplifier | 5.5 mA | |
| Output Current per Channel | 70 mA | |
| Supply Voltage Range | ±3.0 V to ±6.0 V | |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | 8-Lead SOIC, MSOP, and µSOIC |
Key Features
- Current Feedback Amplifier (CFA) architecture for high gain accuracy and stability
- Two independent amplification circuits in a single device
- Low noise floor and fast slew rate (1200 V/µs)
- Excellent video specifications: gain flatness of 0.1 dB to 60 MHz, differential gain error of 0.01%, and differential phase error of 0.02°
- Low power consumption: 5.5 mA per amplifier at ±5 V supplies
- High output drive: over 70 mA output current, capable of driving up to eight back-terminated 75 Ω loads
- Low distortion: THD at fC = 5 MHz of -65 dBc, third-order intercept at f1 = 10 MHz of 33 dBm, and SFDR at f = 5 MHz of -66 dB
- Compact packages: available in 8-lead SOIC, MSOP, and µSOIC
Applications
- Analog-to-digital drivers
- Video line drivers
- Differential line drivers
- Professional cameras
- Video switchers
- Special effects equipment
- RF receivers
- Data acquisition systems
- Medical devices
- Industrial control equipment
Q & A
- What is the AD8002AR amplifier's primary architecture?
The AD8002AR is a Current Feedback Amplifier (CFA).
- How many amplification circuits are included in the AD8002AR?
The AD8002AR includes two independent amplification circuits in a single device.
- What is the slew rate of the AD8002AR?
The slew rate of the AD8002AR is 1200 V/µs.
- What are the key video specifications of the AD8002AR?
The AD8002AR features gain flatness of 0.1 dB to 60 MHz, differential gain error of 0.01%, and differential phase error of 0.02°.
- What is the maximum output current of the AD8002AR?
The AD8002AR can deliver over 70 mA of output current per channel.
- What types of packages is the AD8002AR available in?
The AD8002AR is available in 8-lead SOIC, MSOP, and µSOIC packages.
- What is the operating temperature range of the AD8002AR?
The operating temperature range of the AD8002AR is -40°C to 85°C.
- What are some common applications of the AD8002AR?
- How much power does each amplifier in the AD8002AR consume?
Each amplifier in the AD8002AR consumes a maximum of 5.5 mA at ±5 V supplies.
- What is the bandwidth of the AD8002AR at a gain of +1?
The -3 dB bandwidth of the AD8002AR at a gain of +1 is 600 MHz.
