AD8023 Triple Video Amplifier with High Current Output Data Sheet

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High Current Output, Triple Video Amplifier AD8023

FEATURES PIN CONFIGURATION Drives 13 V Output

14-Lead SOIC

Drives Unlimited Capacitive Load High Current Output Drive: 70 m A

DISABLE 1 OUT 2

Excellent Video Specifications (RL = 150
)

Gain Flatness 0.1 d B to 10 MHz DISABLE 2 –IN 2

0.06% Differential Gain Error DISABLE 3 +IN 2 0.02 Differential Phase Error

+VS AD8023 –VS

Power

+IN 3+IN 1

Operates on 2.5 V to 7.5 V Supply

10.0 m A/Amplifier Max Power Supply Current –IN 1 –IN 3

High Speed OUT 1 OUT 3 250 MHz Unity Gain Bandwidth (3 d B) 1200 V/s Slew Rate Fast Settling Time of 35 ns (0.1%) High Speed Disable Function

The AD8023 uses maximum supply current of 10.0 m A per

Turn-Off Time 30 ns

amplifier and runs on ±2.5 V to ±7.5 V power supply. The

Easy to Use

outputs of each amplifier swing to within one volt of either

200 m A Short Circuit Current

supply rail to easily accommodate video signals. The AD8023

Output Swing to 1 V of Rails

is unique among current feedback op amps by virtue of its large

APPLICATIONS capacitive load drive with a small series resistor, while still LCD Displays achieving rapid settling time. For instance, it can settle to 0.1% in Video Line Driver 35 ns while driving 300 p F capacitance. Broadcast and Professional Video

The bandwidth of 250 MHz along with a 1200 V/µs slew rate

Computer Video Plug-In Boards

make the AD8023 useful in high speed applications requiring

Consumer Video

a single +5 V or dual power supplies up to ±7.5 V. Further-

RGB Amplifier in Component Systems

more, the AD8023 contains a high speed disable function for each amplifier in order to power down the amplifier or high

PRODUCT DESCRIPTION

impedance the output. This can then be used in video multi-

The AD8023 is a high current output drive, high voltage output

plexing applications. The AD8023 is available in the indus-

drive, triple video amplifier. Each amplifier has 70 m A of output

trial temperature range of –40°C to +85°C.

current and is optimized for driving large capacitive loads. The amplifiers are current feedback amplifiers and feature gain flatness of 0.1 d B to 10 MHz while offering differential gain and phase error of 0.06% and 0.02°.

VIN VIN

Figure 1. Pulse Response Driving a Large Load Capacitor, Figure 2. Output Swing Voltage,

CL = 300 p F, G = +3, RF = 750 Ω, RS = 16.9 Ω, RL = 10 kΩ RL = 150 Ω; VS = ±7.5 V, G = +10

REV. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its

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use, nor for any infringements of patents or other rights of third parties

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