High Performance Video Op Amp Data Sheet AD811 FEATURES CONNECTION DIAGRAMS High speed 1 8 NC NC 2 IN 7 +V 140 MHz bandwidth (3 dB, G = +1) S +IN 3 6 OUTPUT 120 MHz bandwidth (3 dB, G = +2) V 4 5 NC S AD811 35 MHz bandwidth (0.1 dB, G = +2) NC = NO CONNECT 2500 V/s slew rate 25 ns settling time to 0.1% (for a 2 V step) Figure 1. 8-Lead Plastic (N-8), CERDIP (Q-8), SOIC N (R-8) 65 ns settling time to 0.01% (for a 10 V step) NC 1 16 NC Excellent video performance (R =150 ) L AD811 NC 2 15 NC 0.01% differential gain, 0.01 differential phase IN 3 14 +V S Hz Voltage noise of 1.9 nV/ NC 4 13 NC Low distortion: THD = 74 dB at 10 MHz +IN 5 12 OUTPUT Excellent dc precision: 3 mV max input offset voltage NC 6 11 NC V 7 TOP VIEW 10 NC Flexible operation S (Not to Scale) NC 8 9 NC Specified for 5 V and 15 V operation 2.3 V output swing into a 75 load (V = 5 V) S NOTES 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. APPLICATIONS Figure 2. 16-Lead SOIC W (RW-16) Video crosspoint switchers, multimedia broadcast systems HDTV compatible systems 3 2 1 20 19 Video line drivers, distribution amplifiers 18 NC 4 NC ADC/DAC buffers 17 NC 5 NC AD811 DC restoration circuits IN 6 16 +V S Medical 7 15 NC NC TOP VIEW 8 14 +IN OUTPUT Ultrasound (Not to Scale) PET 9 10 11 12 13 Gamma Counter applications NOTES MIL-STD-883B parts available 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN. Figure 3. 20-Terminal LCC (E-20-1) GENERAL DESCRIPTION A wideband current feedback operational amplifier, the AD811 The AD811 is also excellent for pulsed applications where is optimized for broadcast-quality video systems. The 3 dB transient response is critical. It can achieve a maximum slew bandwidth of 120 MHz at a gain of +2 and the differential gain rate of greater than 2500 V/s with a settling time of less than and phase of 0.01% and 0.01 (R = 150 ) make the AD811 an 25 ns to 0.1% on a 2 V step and 65 ns to 0.01% on a 10 V step. L excellent choice for all video systems. The AD811 is designed to The AD811 is ideal as an ADC or DAC buffer in data acquisition meet a stringent 0.1 dB gain flatness specification to a bandwidth of systems due to its low distortion up to 10 MHz and its wide unity 35 MHz (G = +2) in addition to low differential gain and phase gain bandwidth. Because the AD811 is a current feedback ampli- errors. This performance is achieved whether driving one or two fier, this bandwidth can be maintained over a wide range of back-terminated 75 cables, with a low pow er supply current gains. The AD811 also offers low voltage and current noise of of 16.5 mA. Furthermore, the AD811 is specified over a power Hz Hz 1.9 nV/ and 20 pA/ , respectively, and excellent dc supply range of 4.5 V to 18 V. accuracy for wide dynamic range applications. Rev. G Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2015 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com V NC S NC NC NC NC NC NC NC NC 00866-E-001 00866-E-002 00866-E-003AD811 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................6 Applications ....................................................................................... 1 Applications Information .............................................................. 12 Connection Diagrams ...................................................................... 1 General Design Considerations ............................................... 12 General Description ......................................................................... 1 Achieving the Flattest Gain Response at High Frequency .... 12 Revision History ............................................................................... 2 Operation as a Video Line Driver ............................................ 14 Specifications ..................................................................................... 3 An 80 MHz Voltage-Controlled Amplifier Circuit................ 15 Absolute Maximum Ratings ............................................................ 5 A Video Keyer Circuit ............................................................... 16 Maximum Power Dissipation ..................................................... 5 Outline Dimensions ....................................................................... 18 Metalization Photograph ............................................................. 5 Ordering Guide .......................................................................... 20 ESD Caution .................................................................................. 5 REVISION HISTORY 4/15Rev. F to Rev. G Changes to Figure 25 ........................................................................ 9 Changes to Ordering Guide .......................................................... 20 2/14Rev. E to Rev. F Changes to R-8 Package, RW-16 Package, and E-20-1 Package Deleted R-20 Package .................................................... Throughout Changes to Applications Section .................................................... 1 Removed Figure 4 Renumbered Sequentially .............................. 1 Moved Figure 4 and Figure 5 .......................................................... 6 Changes to An 80 MHz Voltage-Controlled Amplifier Circuit Section ................................................................................ 15 Updated Outline Dimensions, Removed Figure 54 ................... 18 Changes to Ordering Guide .......................................................... 19 7/04Rev. D to Rev. E Updated Format .................................................................. Universal Change to Maximum Power Dissipation Section ........................ 7 Changes to Ordering Guide .......................................................... 20 Updated Outline Dimensions ....................................................... 20 Rev. G Page 2 of 20