Overview
The AD812AR from Analog Devices Inc. is a low-power, single-supply, dual video amplifier designed for high-speed applications. This device features two video amplifiers in a compact 8-lead SOIC package, making it ideal for space-constrained installations. The AD812AR is optimized for driving cables in video systems and offers excellent video specifications, including gain flatness, differential gain error, and differential phase error. It operates on a single +3 V supply with low power consumption, making it suitable for portable and battery-powered applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Channels | 2 | |
| Output Current per Channel | 50 mA | |
| Input Offset Voltage (Vos) | 2 mV | |
| Supply Voltage Range | 2.4 V to 36 V, ±1.2 V to ±18 V | V |
| Operating Supply Current | 4.5 mA | |
| Minimum Operating Temperature | -40°C | °C |
| Maximum Operating Temperature | +85°C | °C |
| -3 dB Bandwidth | 145 MHz | |
| Slew Rate | 1600 V/µs | |
| Common Mode Rejection Ratio (CMRR) | 58 dB | |
| Mounting Style | SMD/SMT | |
| Amplifier Type | Current Feedback |
Key Features
- Two video amplifiers in one 8-lead SOIC package, optimized for driving cables in video systems.
- Excellent video specifications: gain flatness of 0.1 dB to 40 MHz, differential gain error of 0.02%, and differential phase error of 0.02°.
- Low power operation: can run on a single +3 V supply with a maximum power supply current of 5.5 mA per amplifier.
- High speed: 145 MHz unity gain bandwidth and 1600 V/µs slew rate.
- Output current of 50 mA per channel, with output swing to within one volt of either supply rail.
- Ideal for professional video electronics such as cameras and video switchers.
- Compact surface-mount package, suitable for modern PCB design and reduced board space requirements.
Applications
- Video line drivers
- Professional cameras
- Video switchers
- Special effects equipment
- Portable and battery-powered applications where size and power are critical.
- General-purpose high-speed applications requiring single or dual power supplies.
Q & A
- What is the AD812AR?
The AD812AR is a low-power, single-supply, dual video amplifier from Analog Devices Inc.
- How many amplifiers are in the AD812AR package?
The AD812AR contains two video amplifiers in a single 8-lead SOIC package.
- What is the typical supply voltage for the AD812AR?
The AD812AR can operate on a single +3 V supply and also supports dual supplies up to ±15 V.
- What is the output current per channel of the AD812AR?
Each amplifier in the AD812AR has an output current of 50 mA.
- What are the key video specifications of the AD812AR?
The AD812AR features gain flatness of 0.1 dB to 40 MHz, differential gain error of 0.02%, and differential phase error of 0.02°.
- What is the slew rate of the AD812AR?
The slew rate of the AD812AR is 1600 V/µs.
- What are the typical applications of the AD812AR?
The AD812AR is used in video line drivers, professional cameras, video switchers, special effects equipment, and other high-speed video applications.
- What is the operating temperature range of the AD812AR?
The AD812AR operates in the temperature range of -40°C to +85°C.
- Is the AD812AR suitable for battery-powered devices?
Yes, the AD812AR is suitable for battery-powered devices due to its low power consumption.
- What is the package type of the AD812AR?
The AD812AR comes in an 8-lead SOIC package.
