ad811an

Product Summary

The ad811an is a wideband current-feedback operational amplifier, 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 = 150 W) make the ad811an an excellent choice for all video systems. The ad811an 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 75 W cables, with a low power supply current of 16.5 mA. Furthermore, the ad811an is specified over a power supply range of ±4.5 V to ±18 V. The applications of the ad811an include Video Crosspoint Switchers, Multimedia Broadcast Systems, HDTV Compatible Systems, Video Line Drivers, Distribution Amplifiers, ADC/DAC Buffers, DC Restoration Circuits, Medical—Ultrasound, PET, Gamma and Counter Applications.

Parametrics

ad811an absolute maximum ratings: (1)Supply Voltage: ±18 V; (2)Internal Power Dissipation: Observe Derating Curves; (3)Output Short Circuit Duration: Observe Derating Curves; (4)Common-Mode Input Voltage: ±VS; (5)Differential Input Voltage: ±6 V; (6)Storage Temperature Range (Q, E): –65℃ to +150℃; (7)Storage Temperature Range (N, R): –65℃ to +125℃; (8)Operating Temperature Range: –40℃ to +85℃; (9)Lead Temperature Range (Soldering 60 sec): +300℃.

Features

ad811an features: (1)High Speed: 140 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 Rate, 25 ns Settling Time to 0.1% (For a 2 V Step), 65 ns Settling Time to 0.01° (For a 10 V Step); (2)Excellent Video Performance (RL =150 Ω): 0.01% Differential Gain, 0.018 Differential Phase, Voltage Noise of 1.9 nV√Hz; (3)Low Distortion: THD = ±4 dB @ 10 MHz; (4)Excellent DC Precision: 3 mV max Input Offset Voltage; (5)Flexible Operation: Specified for ±5 V and ±15 V Operation, ±2.3 V Output Swing into a 75 Ω Load (VS = ±5 V).

Diagrams