3 nV/Hz, Ultralow Distortion, High Speed Op Amp Data Sheet AD8045 FEATURES CONNECTION DIAGRAMS AD8045 Ultralow distortion TOP VIEW (Not to Scale) SFDR 101 dBc at 5 MHz NIC 1 8 +V S 90 dBc at 20 MHz FEEDBACK 2 7 OUTPUT 63 dBc at 70 MHz IN 3 6 NIC Third-order intercept +IN 4 5 V S 43 dBm at 10 MHz NOTES 1. NIC = NO INTERNAL CONNECTION. Low noise Figure 1. 8-Lead AD8045 LFCSP (CP-8) 3 nV/Hz 3 pA/Hz AD8045 TOP VIEW High speed (Not to Scale) 1 GHz, 3 dB bandwidth (G = +1) FEEDBACK 1 8 NIC 1350 V/s slew rate IN 2 7 +V S 7.5 ns settling time to 0.1% +IN 3 6 OUTPUT Standard and low distortion pinout V 4 5 NIC S Supply current: 15 mA NOTES 1. NIC = NO INTERNAL CONNECTION. Offset voltage: 1.0 mV max Wide supply voltage range: 3.3 V to 12 V Figure 2. 8-Lead AD8045 SOIC/EP (RD-8) APPLICATIONS Instrumentation IF and baseband amplifiers Active filters ADC drivers DAC buffers GENERAL DESCRIPTION The AD8045 is a unity-gain stable voltage feedback amplifier paddle that provides a low thermal resistance path to the with ultralow distortion, low noise, and high slew rate. With a printed circuit board (PCB). This enables more efficient heat spurious-free dynamic range of 90 dBc at 20 MHz, the AD8045 is transfer and increases reliability. The AD8045 works over the an ideal solution in a variety of applications, including ultrasound, extended industrial temperature range (40C to +125C). automated test equipment (ATE), active filters, and analog-to- 20 G = +1 digital converter (ADC) drivers. The Analog Devices, Inc., V = 5V S 30 V = 2V p-p OUT proprietary next generation XFCB process and innovative R = 1k 40 L R = 100 S architecture enable such high performance amplifiers. 50 The AD8045 features a low distortion pinout for the LFCSP, 60 which improves second harmonic distortion and simplifies the 70 layout of the circuit board. 80 HD3 LFCSP The AD8045 has a 1 GHz bandwidth, a 1350 V/s slew rate, and 90 settles to 0.1% in 7.5 ns. With a wide supply voltage range (3.3 V HD2 LFCSP 100 to 12 V) and a low offset voltage (200 V), the AD8045 is an 110 ideal candidate for systems that require high dynamic range, 120 precision, and high speed. 0.1 1 10 100 FREQUENCY (MHz) The AD8045 amplifier is available in a 3 mm 3 mm LFCSP Figure 3. Harmonic Distortion vs. Frequency for Various Packages and the standard 8-lead SOIC. Both packages feature an exposed Rev. C 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 20042018 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 HARMONIC DISTORTION (dBc) 04814-0-002 04814-0-001 04814-0-079AD8045 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Frequency Response .................................................................. 17 Applications ....................................................................................... 1 DC Errors .................................................................................... 17 Connection Diagrams ...................................................................... 1 Output Noise ............................................................................... 18 General Description ......................................................................... 1 Applications Information .............................................................. 19 Revision History ............................................................................... 2 Low Distortion Pinout ............................................................... 19 Specifications with 5 V Supply ..................................................... 3 High Speed ADC Driver ........................................................... 19 Specifications with +5 V Supply ..................................................... 4 90 MHz Active Low-Pass Filter (LPF) ..................................... 20 Absolute Maximum Ratings ............................................................ 5 Printed Circuit Board Layout ....................................................... 22 Thermal Resistance ...................................................................... 5 Signal Routing ............................................................................. 22 ESD Caution .................................................................................. 5 Power Supply Bypassing ............................................................ 22 Pin Configurations and Function Descriptions ........................... 6 Grounding ................................................................................... 22 Typical Performance Characteristics ............................................. 7 Exposed Paddle........................................................................... 23 Circuit Configurations ................................................................... 16 Driving Capacitive Loads .......................................................... 23 Wideband Operation ................................................................. 16 Outline Dimensions ....................................................................... 24 Theory of Operation ...................................................................... 17 Ordering Guide .......................................................................... 24 REVISION HISTORY 12/2018Rev. B to Rev. C Changes to Table 2 ............................................................................ 4 Changes to Ordering Guide .......................................................... 24 5/2016Rev. A to Rev. B Changed CP-8-2 to CP-8-13 ........................................ Throughout Changes to Figure 1 and Figure 2 ................................................... 1 Changes to Figure 5, Figure 6, and Table 5 ................................... 6 Deleted Table 6 Renumbered Sequentially................................... 6 Updated Outline Dimensions ....................................................... 24 Changes to Ordering Guide .......................................................... 24 9/2004Rev. 0 to Rev. A Changes to Features Section............................................................ 1 Changes to Specifications Section .................................................. 4 Changes to Figure 58 ...................................................................... 15 Changes to Figure 63 ...................................................................... 17 Changes to Frequency Response Section .................................... 17 Changes to Figure 64 ...................................................................... 17 Changes to DC Errors Section ...................................................... 17 Changes to Figure 65 ...................................................................... 17 Changes to Figure 66 ...................................................................... 18 Changes to Output Noise Section ................................................ 18 Changes to Ordering Guide .......................................................... 24 7/2004Revision 0: Initial Version Rev. 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