Low Noise, 1 GHz FastFET Op Amps Data Sheet ADA4817-1/ADA4817-2 FEATURES CONNECTION DIAGRAMS ADA4817-1 High speed TOP VIEW (Not to Scale) 3 dB bandwidth (G = 1, RL = 100 ): 1050 MHz PD 1 8 +V Slew rate: 870 V/s S FB 2 7 OUT 0.1% settling time: 9 ns IN 3 6 NIC Input bias current: 2 pA typical +IN 4 5 V S Input capacitance Common-mode capacitance: 1.3 pF typical NOTES 1. NIC = NO INTERNAL CONNECTION. Differential mode capacitance: 0.1 pF typical Low input noise Figure 1. 8-Lead LFCSP (CP-8-13) Voltage noise: 4 nV/Hz at 100 kHz ADA4817-1 TOP VIEW Current noise: 2.5 fA/Hz at 100 kHz (Not to Scale) Low distortion: 90 dBc at 10 MHz (G = 1, RL = 1 k) FB 1 8 PD Linear output current: 40 mA IN 2 7 +V S Supply quiescent current per amplifier: 19 mA typical +IN 3 6 OUT Powered down supply quiescent current per amplifier: V 4 5 NIC S 1.5 mA typical NOTES 1. NIC = NO INTERNAL CONNECTION. APPLICATIONS Figure 2. 8-Lead SOIC (RD-8-1) Photodiode amplifiers ADA4817-2 Data acquisition front ends TOP VIEW Instrumentation (Not to Scale) Filters ADC drivers Output buffers IN1 1 12 V S1 +IN1 2 11 NIC 10 NIC 3 +IN2 V 4 9 IN2 S2 NOTES 1. NIC = NO INTERNAL CONNECTION. Figure 3. 16-Lead LFCSP (CP-16-20) 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 20082019 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 OUT2 FB1 +V PD1 S2 +V PD2 S1 FB2 OUT1 07756-001 07756-002 07756-003 5 16 6 15 7 14 8 13ADA4817-1/ADA4817-2 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Driving Capacitive Loads .......................................................... 20 Applications ....................................................................................... 1 Thermal Considerations ............................................................ 20 Connection Diagrams ...................................................................... 1 Power-Down Operation ............................................................ 21 Revision History ............................................................................... 2 Capacitive Feedback................................................................... 21 General Description ......................................................................... 4 Higher Frequency Attenuation ................................................. 22 Specifications ..................................................................................... 5 Layout, Grounding, and Bypassing Considerations .................. 23 5 V Operation ............................................................................. 5 Signal Routing ............................................................................. 23 5 V Operation................................................................................ 6 Power Supply Bypassing ............................................................ 23 Absolute Maximum Ratings ............................................................ 8 Grounding ................................................................................... 23 Thermal Resistance ...................................................................... 8 Exposed Pad ................................................................................ 23 Maximum Safe Power Dissipation ............................................. 8 Leakage Currents ........................................................................ 24 ESD Caution .................................................................................. 8 Input Capacitance ...................................................................... 24 Pin Configurations and Function Descriptions ........................... 9 Input-to-Input/Output Coupling ............................................. 24 Typical Performance Characteristics ........................................... 11 Applications Information .............................................................. 25 Test Circuits ..................................................................................... 18 Low Distortion Pinout ............................................................... 25 Theory of Operation ...................................................................... 19 Wideband Photodiode Preamp ................................................ 25 Closed-Loop Frequency Response ........................................... 19 High Speed JFET Input Instrumentation Amplifier .............. 27 Noninverting Closed-Loop Frequency Response .................. 19 Active Low-Pass Filter (LPF) .................................................... 28 Inverting Closed-Loop Frequency Response ............................. 19 Outline Dimensions ....................................................................... 30 Wideband Operation ................................................................. 20 Ordering Guide .......................................................................... 31 REVISION HISTORY 4/2019Rev. F to Rev. G Added Figure 44 and Figure 45 .................................................... 17 Changes to Noninverting Closed-Loop Frequency Response Changes to Features Section............................................................ 1 Updated Outline Dimensions ....................................................... 32 Section, Inverting Closed-Loop Frequency Response Section, and Figure 54 Caption ................................................................... 19 6/2018Rev. E to Rev. F Changes to Thermal Considerations Section ............................. 20 Changes to Input Common-Mode Voltage Range, Table 1 ........ 5 Added Figure 57 and Figure 58 .................................................... 21 Changes to Input Common-Mode Voltage Range, Table 2 ........ 7 Changes to Power-Down Operation Section and Table 8......... 21 Changed Exposed Paddle Section to Exposed Pad Section...... 23 1/2018Rev. D to Rev. E Changes to Wideband Photodiode Preamp Section .................. 25 Changes to Figure 57 ...................................................................... 21 Change to Table 9 ........................................................................... 26 10/2017Rev. C to Rev. D Changes to Active Low Pass Filter (LPF) Section ...................... 28 Changes to Features Section and Applications Section ....................... 1 Updated Outline Dimensions ....................................................... 30 Changes to Table 1 ............................................................................ 5 Changes to Ordering Guide .......................................................... 31 Changes to Table 2 ............................................................................ 6 5/2016Rev. B to Rev. C Changes to Thermal Resistance Section, Table 4, and Maximum Changed CP-8-2 to CP-8-13 ........................................ Throughout Safe Power Dissipation Section ....................................................... 8 Changes to Figure 1, Figure 2, and Figure 3 .................................. 1 Changes to Figure 5 .......................................................................... 9 Changes to Figure 5, Table 5, Figure 6, and Table 6 ...................... 6 Changes to Figure 7 ........................................................................ 10 Changes to Figure 7 and Table 7 ...................................................... 7 Reorganized Typical Performance Characteristics Layout ....... 11 Updated Outline Dimensions ....................................................... 24 Added Figure 32 through Figure 37 Renumbered Sequentially .... 15 Changes to Ordering Guide .......................................................... 25 Added Figure 38 through Figure 43 ............................................. 16 Rev. G Page 2 of 31