Low Cost, 80 MHz FastFET Op Amps AD8033/AD8034 FEATURES CONNECTION DIAGRAMS FET input amplifier NC 1 8 NC AD8033 AD8033 1 pA typical input bias current V 1 5 +V OUT S IN 2 7 +V S Very low cost +IN 3 6 V OUT V 2 S High speed V 4 5 NC S +IN 3 4 IN 80 MHz, 3 dB bandwidth (G = +1) NC = NO CONNECT 80 V/s slew rate (G = +2) Figure 1. 8-Lead SOIC (R) Figure 2. 5-Lead SC70 (KS) Low noise 11 nV/Hz (f = 100 kHz) V 1 8 +V OUT1 S 0.7 fA/Hz (f = 100 kHz) IN1 2 7 V OUT2 +IN1 3 6 IN2 Wide supply voltage range: 5 V to 24 V V 4 5 +IN2 S Low offset voltage: 1 mV typical AD8034 Single-supply and rail-to-rail output Figure 3. 8-Lead SOIC (R) and 8-Lead SOT-23 (RJ) High common-mode rejection ratio: 100 dB Low power: 3.3 mA/amplifier typical supply current 24 No phase reversal V = 200mV p-p OUT G = +10 21 Small packaging: 8-lead SOIC, 8-lead SOT-23, and 5-lead SC70 18 G = +5 15 APPLICATIONS 12 Instrumentation 9 G = +2 Filters 6 Level shifting 3 Buffering G = +1 0 3 G = 1 GENERAL DESCRIPTION 6 The AD8033/AD8034 FastFET amplifiers are voltage feedback 9 0.1 1 10 100 1000 amplifiers with FET inputs, offering ease of use and excellent FREQUENCY (MHz) performance. The AD8033 is a single amplifier and the AD8034 Figure 4. Small Signal Frequency Response is a dual amplifier. The AD8033/AD8034 FastFET op amps in Analog Devices, Inc., proprietary XFCB process offer significant The AD8033/AD8034 amplifiers only draw 3.3 mA/amplifier of performance improvements over other low cost FET amps, such quiescent current while having the capability of delivering up to as low noise (11 nV/Hz and 0.7 fA/Hz) and high speed (80 MHz 40 mA of load current. bandwidth and 80 V/s slew rate). The AD8033 is available in a small package 8-lead SOIC and a With a wide supply voltage range from 5 V to 24 V and fully small package 5-lead SC70. The AD8034 is also available in a operational on a single supply, the AD8033/AD8034 amplifiers small package 8-lead SOIC and a small package 8-lead SOT-23. work in more applications than similarly priced FET input They are rated to work over the industrial temperature range of amplifiers. In addition, the AD8033/AD8034 have rail-to-rail 40C to +85C without a premium over commercial grade outputs for added versatility. products. Despite their low cost, the amplifiers provide excellent overall performance. They offer a high common-mode rejection of 100 dB, low input offset voltage of 2 mV maximum, and low noise of 11 nV/Hz. Rev. D 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 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 20022008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. GAIN (dB) 02924-001 02924-003 02924-004 02924-002AD8033/AD8034 TABLE OF CONTENTS Features .............................................................................................. 1 Input Overdrive .......................................................................... 16 Applications ....................................................................................... 1 Input Impedance ........................................................................ 16 General Description ......................................................................... 1 Thermal Considerations ............................................................ 16 Connection Diagrams ...................................................................... 1 Layout, Grounding, and Bypassing Considerations .................. 18 Revision History ............................................................................... 2 Bypassing ..................................................................................... 18 Specif icat ions ..................................................................................... 3 Grounding ................................................................................... 18 Absolute Maximum Ratings ............................................................ 6 Leakage Currents ........................................................................ 18 Maximum Power Dissipation ..................................................... 6 Input Capacitance ...................................................................... 18 Output Short Circuit .................................................................... 6 Applications Information .............................................................. 19 ESD Caution .................................................................................. 6 High Speed Peak Detector ........................................................ 19 Typical Performance Characteristics ............................................. 7 Active Filters ............................................................................... 20 Test Circuits ..................................................................................... 14 Wideband Photodiode Preamp ................................................ 21 Theory of Operation ...................................................................... 16 Outline Dimensions ....................................................................... 23 Output Stage Drive and Capacitive Load Drive ..................... 16 Ordering Guide .......................................................................... 24 8/02Rev. 0 to Rev. A REVISION HISTORY Added AD8033 ................................................................... Universal 9/08Rev. C to Rev. D VOUT = 2 V p-p Deleted from Default Conditions ......... Universal Deleted Usable Input Range Parameter, Table 1 ........................... 3 Added SOIC-8 (R) and SC70 (KS) .................................................. 1 Deleted Usable Input Range Parameter, Table 2 ........................... 4 Edits to General Description Section ............................................. 1 Deleted Usable Input Range Parameter, Table 3 ........................... 5 Changes to Specifications ................................................................. 2 New Figure 2 ...................................................................................... 5 Edits to Maximum Power Dissipation Section .............................. 5 4/08Rev. B to Rev. C Changes to Format ............................................................. Universal Changes to Ordering Guide ............................................................. 5 Changes to Features and General Description ............................. 1 Change to TPC 3 ............................................................................... 6 Changes to Figure 13 Caption and Figure 14 Caption ................ 8 Change to TPC 6 ............................................................................... 6 Changes to Figure 22 and Figure 23 ............................................... 9 Change to TPC 9 ............................................................................... 7 Changes to Figure 25 and Figure 28 ............................................. 10 New TPC 16 ....................................................................................... 8 Changes to Input Capacitance Section ........................................ 18 New TPC 17 ....................................................................................... 8 New TPC 31 .................................................................................... 11 Changes to Active Filters Section ................................................. 21 New TPC 35 .................................................................................... 11 Changes to Outline Dimensions ................................................... 23 Changes to Ordering Guide .......................................................... 24 New Test Circuit 9 .......................................................................... 13 SC70 (KS) Package Added ............................................................ 19 2/03Rev. A to Rev. B Changes to Features .......................................................................... 1 Changes to Connection Diagrams ................................................. 1 Changes to Specifications ................................................................ 2 Changes to Absolute Maximum Ratings ....................................... 4 Replaced TPC 31............................................................................. 11 Changes to TPC 35 ......................................................................... 11 Changes to Test Circuit 3 ............................................................... 12 Updated Outline Dimensions ....................................................... 19 Rev. D Page 2 of 24