Datasheet AD811 (Analog Devices)

High Performance Video Op Amp Data Sheet AD811 FEATURES CONNECTION DIAGRAMS High speed 1 8 NC NC 140 MHz bandwidth (3 dB, G = +1) –IN 2 7 +VS 120 MHz bandwidth (3 dB, G = +2) +IN 3 6 OUTPUT –VS 4 5 NC 35 MHz bandwidth (0.1 dB, G = +2) AD811 2500 V/µs slew rate NC = NO CONNECT
00866-E-001
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) Excellent video performance (R NC 1 16 NC L =150 Ω) AD811 0.01% differential gain, 0.01° differential phase NC 2 15 NC –IN 14 +V Voltage noise of 1.9 nV/√Hz 3 S 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 Flexible operation –V TOP VIEW S 7 10 NC
-002
(Not to Scale)
E
Specified for ±5 V and ±15 V operation NC 8 9 NC
00866-
±2.3 V output swing into a 75 Ω load (VS = ±5 V) NOTES APPLICATIONS 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
Figure 2. 16-Lead SOIC_W (RW-16)
Video crosspoint switchers, multimedia broadcast systems HDTV compatible systems NC NC NC NC NC 3 2 1 20 19 Video line drivers, distribution amplifiers ADC/DAC buffers NC 4 18 NC NC 5 17 NC DC restoration circuits AD811 –IN 6 16 +VS Medical NC 7 15 NC Ultrasound TOP VIEW +IN 8 14 OUTPUT
-003
(Not to Scale)
E
PET
00866-
Gamma 9 10 11 12 13 S Counter applications NC NC NC NC –V MIL-STD-883B parts available NOTES 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/µs with a settling time of less than and phase of 0.01% and 0.01° (RL = 150 Ω) 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. excellent choice for al 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 Ω cables, with a low power 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 1.9 nV/√Hz and 20 pA/√Hz, 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 rights of third parties that may result from its use. Specifications subject to change without notice. No One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 ©2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com
Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAMS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS MAXIMUM POWER DISSIPATION METALIZATION PHOTOGRAPH ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION GENERAL DESIGN CONSIDERATIONS ACHIEVING THE FLATTEST GAIN RESPONSE AT HIGH FREQUENCY Choice of Feedback and Gain Resistors Printed Circuit Board Layout Considerations Quality of Coaxial Cable Power Supply Bypassing Driving Capacitive Loads OPERATION AS A VIDEO LINE DRIVER AN 80 MHZ VOLTAGE-CONTROLLED AMPLIFIER CIRCUIT A VIDEO KEYER CIRCUIT OUTLINE DIMENSIONS ORDERING GUIDE