270 MHz, 400 A Current Feedback Amplifier Data Sheet AD8005 FEATURES FUNCTIONAL BLOCK DIAGRAMS Ultralow power 1 8 NC NC AD8005 400 A power supply current (4 mW on 5 V ) IN 2 7 +V S S +IN 3 6 OUT Specified for single supply operation V 4 5 NC S High speed TOP VIEW 270 MHz, 3 dB bandwidth (G = +1) (Not to Scale) 170 MHz, 3 dB bandwidth (G = +2) NC = NO CONNECT 280 V/s slew rate (G = +2) Figure 1. 8-Lead PDIP and SOIC N 28 ns settling time to 0.1%, 2 V step (G = +2) AD8005 Low distortion/noise OUT 1 5 +V 63 dBc at 1 MHz, V = 2 V p-p S O 50 dBc at 10 MHz, V = 2 V p-p V 2 O S 4.0 nV/Hz input voltage noise at 10 MHz +IN 3 4 IN Good video specifications (R = 1 k, G = +2) L TOP VIEW Gain flatness 0.1 dB to 30 MHz (Not to Scale) 0.11% differential gain error Figure 2. 5-Lead SOT-23 0.4 differential phase error 3 G = +2 V = 200mV p-p OUT APPLICATIONS 2 R = 1k L Signal conditioning 1 A/D buffer 0 Power sensitive, high speed systems 1 Battery powered equipment V = 5V S 2 Loop/remote power systems Communication or video test systems 3 Portable medical instruments 4 V = +5V S GENERAL DESCRIPTION 5 The AD8005 is an ultralow power, high speed amplifier with a 6 0.1 1 10 100 500 wide signal bandwidth of 170 MHz and slew rate of 280 V/s. FREQUENCY (MHz) This performance is achieved while consuming only 400 A of Figure 3. Frequency Response G = 2, V = +5 V or 5 V S quiescent supply current. These features increase the operating 40 G = +2 time of high speed battery powered systems without reducing V = 2V p-p OUT dynamic performance. R = 1k L 50 THIRD HARMONIC The current feedback design results in gain flatness of 0.1 dB to 60 30 MHz while offering differential gain and phase errors of 0.11% and 0.4. Harmonic distortion is low over a wide bandwidth with 70 THDs of 63 dBc at 1 MHz and 50 dBc at 10 MHz. Ideal features SECOND HARMONIC for a signal conditioning amplifier or buffer to a high speed A-to-D 80 converter in portable video, medical or communication systems. The AD8005 is characterized for +5 V and 5 V supplies and 90 operates over the industrial temperature range of 40C to +85C. The amplifier is supplied in 8-lead PDIP, 8-lead SOIC N, 100 11020 and 5-lead SOT-23 packages. FREQUENCY (MHz) Figure 4. Distortion vs. Frequency V = 5 V S Rev. B 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 19962014 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. NORMALIZED GAIN (dB) DISTORTION (dBc) 12146-003 12146-002 12146-004 12146-001AD8005 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 ESD Caution...................................................................................5 Applications ....................................................................................... 1 Typical Performance Characteristics ..............................................6 General Description ......................................................................... 1 Applications ..................................................................................... 10 Functional Block Diagrams ............................................................. 1 Driving Capacitive Loads .......................................................... 10 Revision History ............................................................................... 2 Single-Supply Level Shifter ....................................................... 10 Specifications ..................................................................................... 3 Single-Ended-to-Differential Conversion ............................... 10 5 V Supplies ................................................................................ 3 Layout Considerations ............................................................... 11 +5 V Supply ................................................................................... 4 Increasing Feedback Resistors .................................................. 11 Absolute Maximum Ratings ............................................................ 5 Outline Dimensions ....................................................................... 12 Thermal Resistance ...................................................................... 5 Ordering Guide .......................................................................... 13 Maximum Power Dissipation ..................................................... 5 REVISION HISTORY 3/14Rev. A to Rev. B Updated Format .................................................................. Universal Deleted Operating Temperature Range Parameter, Table 1 ........ 3 Changes to Table 3 ............................................................................ 5 Change to Figure 11 ......................................................................... 6 Changes to Ordering Guide .......................................................... 13 8/99Rev. 0 to Rev. A Rev. B Page 2 of 16