Fully Differential, 10 GHz ADC Driver with 10 dB Gain Data Sheet ADL5580 FEATURES FUNCTIONAL BLOCK DIAGRAM 5V 3 dB bandwidth: 10.0 GHz Preset 10 dB gain, can be reduced by adding external ADL5580 resistors VINP 2 14 VOUTP Differential or single-ended input to differential output Z = 100 DIFFERENTIAL A = 10dB Z = 50 DIFFERENTIAL Internally dc-coupled inputs and outputs IN V OUT 4 12 VINN VOUTN Input voltage noise (NSD, RTI): 2.25 nV/Hz at 100 MHz Low noise input stage: 11.3 dB noise figure at 1 GHz Low distortion with +5.0 V and 1.8 V supplies and 1.4 V p-p 1.8V output differential with a 50 1 pF load differential Figure 1. 2 GHz: 59.4 dBc (HD2), 54.3 dBc (HD3), 68.2 dBc (IMD3) 6 GHz: 66 dBc (HD2), 88.1 dBc (HD3), 48.3 dBc (IMD3) 276 mA positive supply current at 5.0 V typical 224 mA negative supply current at 1.8 V typical Power disable APPLICATIONS Instrumentation and defense applications GENERAL DESCRIPTION The ADL5580 is a high performance, single-ended or differential Operating from a +5 V and 1.8 V supply, the positive and amplifier with 10 dB of voltage gain, optimized for applications negative supply current of the ADL5580 is typically +276 mA spanning from dc to 10.0 GHz. The amplifier offers a low referred and 224 mA, respectively. The device has a power disable to input (RTI) noise spectral density (NSD) of 2.24 nV/Hz (at feature, and when disabled, the amplifier consumes 2 mA. 1000 MHz) and is optimized for distortion performance over a The ADL5580 is optimized for wideband, low distortion, and wide frequency range, making the device an ideal driver for low noise operation at the dc to 10.0 GHz frequency range. high speed 12-bit to 16-bit analog-to-digital converters (ADCs). These attributes, together with its adjustable gain capability, The ADL5580 is suited for use in high performance, zero make this device an optimal choice for driving a wide variety of intermediate frequency (IF), and complex IF receiver designs. ADCs, mixers, pin diode attenuators, surface acoustic wave In addition, this device has low distortion for single-ended (SAW) filters, and a multiplicity of discrete RF devices. input driver applications. Fabricated on an Analog Devices, Inc., high speed silicon By using two external series resistors, the gain selection from germanium (SiGe) process, the ADL5580 is supplied in a 10 dB for a differential input can be modified to a lower gain. compact 4 mm 4 mm, 20-terminal land grid array (LGA) The device maintains low distortion through its output package and operates over the 40C to +85C temperature common-mode voltage (V ) of 0.5 V, providing a flexible CM range. capability for driving ADCs with full-scale levels up to 1.4 V p-p. Rev. 0 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. Tel: 781.329.4700 2020 Analog Devices, Inc. All rights reserved. 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Technical Support www.analog.com 17004-001ADL5580 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 RF Input and Output with Common-Mode Network .......... 15 Applications ...................................................................................... 1 RF Signal Chain .......................................................................... 15 Functional Block Diagram .............................................................. 1 Programmability Guide............................................................. 15 General Description ......................................................................... 1 SPI ................................................................................................ 15 Revision History ............................................................................... 2 Applications Information ............................................................. 16 Specifications .................................................................................... 3 Basic Connections ...................................................................... 16 Digital Logic Timing .................................................................... 6 Input and Output Interfacing ................................................... 17 Absolute Maximum Ratings ........................................................... 8 Layout .......................................................................................... 17 Thermal Resistance ...................................................................... 8 Register Summary .......................................................................... 18 ESD Caution.................................................................................. 8 Register Details ............................................................................... 19 Pin Configuration and Function Descriptions ............................ 9 Outline Dimensions ....................................................................... 22 Typical Performance Characteristics ........................................... 10 Ordering Guide .......................................................................... 22 Theory of Operation ...................................................................... 15 REVISION HISTORY 12/2020Revision 0: Initial Version Rev. 0 Page 2 of 22