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5962-9313101 Series

High Performance Video Op Amp

Manufacturer: Analog Devices

Catalog

High Performance Video Op Amp

Key Features

• High speed140 MHz bandwidth (3 dB, G = +1)120 MHz bandwidth (3 dB, G = +2)35 MHz bandwidth (0.1 dB, G = + 2)2500 V/µs slew rate25 ns settling time to 0.1% (for a 2 V step)65 ns settling time to 0.01% (for a 10 V step)
• Excellent dc precision3 mV max input offfset voltage
• Low distortion: THD = -74 dB @ 10 MHz
• Excellent video performance (RL= 150 Ω)0.01% differential gain, 0.01° differential phaseVoltage noise of 1.9 nV/√Hz
• Flexible OperationSpecified for ±5 V and ±15 V operation±2.3 V output swing into a 75 Ω Load(VS= ±5 V)

Description

AI
A wideband current feedback operational amplifier, the AD811 is optimized for broadcast-quality video systems. The -3 dB bandwidth of 120 MHz at a gain of +2 and differential gain and phase of 0.01% and 0.01° (RL= 150W) make the AD811 an excellent choice for all video systems. The AD811 is designed to meet a stringent 0.1 dB gain flatness specification to a bandwidth of 35 MHz (G = +2) in addition to the low differential gain and phase errors. This performance is achieved whether driving one or two back terminated 75Wcables, with a low power supply current of 16.5 mA. Furthermore, the AD811 is specified over a power supply range of ±4.5 V to ±18 V.The AD811 is also excellent for pulsed applications where transient response is crititcal. It can achieve a maximum slew rate of greater than 2500 V/µs with a settling time of less than 25 ns to 0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step.The AD811 is ideal as an ADC or DAC buffer in data acquisition systems due to its low distortion up to 10 MHz and its wide unity gain bandwidth. Because the AD811 is a current feedback amplifier, this bandwidth can be maintained over a wide range of gains. The AD811 also offers low voltage and current noise of 1.9nV/√Hz and 20 pA/√Hz, respectively, and excellent dc accuracy for wide dynamic range applications.