SD Video Filter Amplifiers with Output Short-to-Battery Protection Data Sheet ADA4432-1/ADA4433-1 FEATURES FUNCTIONAL BLOCK DIAGRAMS STB Qualified for automotive applications ENA +V (LFCSP ONLY) S Output overvoltage (short-to-battery) protection up to 18 V Short-to-battery output flag for wire diagnostics ADA4432-1 Output short-to-ground protection Fifth-order, low-pass video filter 0.1 dB flatness to 3 MHz IN 1 STB OUT 2 SD 3 dB bandwidth of 10 MHz 45 dB rejection at 27 MHz OFFSET Ultralow power-down current: 13.5 A typical Low quiescent current 7.6 mA typical (ADA4432-1) GND 13.2 mA typical (ADA4433-1) Figure 1. Low supply voltage: 2.6 V to 3.6 V ENA +V STB S Small packaging ADA4433-1 8-lead, 3 mm 3 mm LFCSP 2R 6-lead SOT-23 (ADA4432-1 only) +IN 1 Wide operating temperature range: 40C to +125C SD R + OUT STB APPLICATIONS R STB +OUT Automotive rearview cameras IN 1 2R Automotive video electronic control units (ECUs) SD Surveillance video systems GND Figure 2. GENERAL DESCRIPTION The ADA4432-1 (single-ended output) and ADA4433-1 The short-to-battery protection integrated into the ADA4432-1 (differential output) are fully integrated video reconstruction and ADA4433-1 protects against both dc and transient filters that combine overvoltage protection (short-to-battery STB overvoltage events, caused by an accidental short to a battery protection) and short-to-ground (STG) protection on the outputs, voltage up to 18 V. The Analog Devices, Inc., short-to-battery with excellent video specifications and low power consumption. protection eliminates the need for large output coupling capacitors The combination of STB protection and robust ESD tolerance and other complicated circuits used to protect standard video amplifiers, saving space and cost. allows the ADA4432-1 and the ADA4433-1 to provide superior protection in the hostile automotive environment. The ADA4432-1 and ADA4433-1 feature a high-order filter with The ADA4432-1 is a single-ended input/single-ended output 3 dB cutoff frequency response at 10 MHz and 45 dB of rejection video filter capable of driving long back-terminated cables. at 27 MHz. The ADA4432-1 and ADA4433-1 feature an internally fixed gain of 2 V/V. This makes the ADA4432-1 and ADA4433-1 The ADA4433-1 is a fully differential video filter that can be ideal for SD video applications, including NTSC and PAL. used as a fully differential input to a differential output or as a single-ended input to a differential output, allowing it to easily The ADA4432-1 and ADA4433-1 operate on single supplies as connect to both differential and single-ended sources. It is low as 2.6 V and as high as 3.6 V while providing the dynamic range required by the most demanding video systems. capable of driving twisted pair or coaxial cable with minimal line attenuation. Differential signal processing reduces the effects The ADA4432-1 and ADA4433-1 are offered in an 8-lead, 3 mm of ground noise, which can plague ground referenced systems. 3 mm LFCSP package. The ADA4432-1 is also available in a The ADA4433-1 is ideal for differential signal processing (gain 6-lead SOT-23 package. All are rated for operation over the and filtering) throughout the signal chain, simplifying the wide automotive temperature range of 40C to +125C. conversion between single-ended and differential components. Rev. E 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 20122017 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. 10597-001 10597-002ADA4432-1/ADA4433-1 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Overvoltage (Short-to-Battery) Protection ................................ 15 Applications ....................................................................................... 1 Short-to-Battery Output Flag ................................................... 15 General Description ......................................................................... 1 ESD Protection ........................................................................... 16 Functional Block Diagrams ............................................................. 1 Enable/Disable Modes (ENA Pin) ........................................... 16 Revision History ............................................................................... 2 Operating Supply Voltage Range .............................................. 16 Specifications ..................................................................................... 3 Applications Information .............................................................. 17 ADA4432-1 Specifications .......................................................... 3 Methods of Transmission .......................................................... 17 ADA4433-1 Specifications .......................................................... 4 Printed Circuit Board (PCB) Layout ....................................... 17 Absolute Maximum Ratings ............................................................ 6 Configuring the ADA4433-1 for Single-Ended Input Signals ....................................................................................................... 18 Thermal Resistance ...................................................................... 6 Pin-Compatible ADA4432-1 and ADA4433-1 ...................... 19 Maximum Power Dissipation ..................................................... 6 Typical Application Circuits ..................................................... 20 ESD Caution .................................................................................. 6 Fully DC-Coupled Transmission Line .................................... 22 Pin Configurations and Function Descriptions ........................... 7 Low Power Considerations ....................................................... 23 Typical Performance Characteristics ............................................. 9 Outline Dimensions ....................................................................... 24 ADA4432-1 Typical Performance Characteristics ................... 9 Ordering Guide .......................................................................... 25 ADA4433-1 Typical Performance Characteristics ................. 12 Automotive Products ................................................................. 25 Theory of Operation ...................................................................... 15 Short Circuit (Short-to-Ground) Protection .............................. 15 REVISION HISTORY 5/2017Rev. D to Rev. E Changes to Table 2 ............................................................................. 4 Changed CP-8-11 to CP-8-21 ...................................... Throughout Added Figure 4, Figure 5, Table 5, and Table 6 ............................. 7 Deleted Figure 59 Renumbered Sequentially ............................ 24 Added Figure 7 to Figure 24 ............................................................ 9 Changes to Figure 58 Caption ...................................................... 24 Changes to Operating Supply Voltage Range Section ............... 16 Added Methods of Transmission Section, Pseudo Differential 8/2015Rev. C to Rev. D Mode (Unbalanced Source Termination) Section, Figure 43, Updated Outline Dimensions ....................................................... 24 Pseudo Differential Mode (Balanced Source Impedance) Section and Figure 44 .................................................................... 17 Added Figure 59 Renumbered Sequentially .............................. 24 Changes to Ordering Guide .......................................................... 25 Changed Fully Differential Transmission Mode Section to Fully Differential Mode Section ............................................................. 17 8/2014Rev. B to Rev. C Added Pin-Compatible ADA4432-1 and ADA4433-1 Section, Changes to Ordering Guide .......................................................... 25 Example Configuration for Package-Compatible PCB Section, and Figure 48 to Figure 51 ............................................................ 19 4/2014Rev. A to Rev. B Added Figure 52 ............................................................................. 20 Change to Theory of Operation Section ..................................... 15 Added Figure 54 ............................................................................. 22 Updated Outline Dimensions ....................................................... 24 Added Low Power Consideration, Figure 56, and Figure 57 ... 23 Changes to Ordering Guide .......................................................... 25 Updated Outline Dimensions ....................................................... 24 Changes to Ordering Guide .......................................................... 25 5/2012Rev. 0 to Rev. A Added ADA4432-1 and 6-Lead SOT-23 ......................... Universal 4/2012Revision 0: Initial Version Added Figure 1 Renumbered Sequentially .................................. 1 Added Table 1 Renumbered Sequentially .................................... 3 Rev. E Page 2 of 25