Low Power, High Speed, CCD Buffer Amplifier Known Good Die ADA4800-KGD FEATURES FUNCTIONAL BLOCK DIAGRAM Integrated active load and gain of 1 buffer ADA4800-KGD Very low buffer power consumption 1 IN 6 As low as 20 mW on chip ISF I ISF Power save feature to reduce active load current by GPO control I BUFF I AL High buffer speed I CC 400 MHz, 3 dB bandwidth 2 5 VEE VCC +1 415 V/s slew rate Fast settling time to 1%, 2 V step: 5 ns 3 OUT I IDRV Adjustable buffer bandwidth 4 IDRV Push-pull output stage Adjustable active load current Figure 1. Known Good Die (KGD): these die are fully guaranteed to data sheet specifications. APPLICATIONS CCD image sensor output buffer Digital still cameras Camcorders GENERAL DESCRIPTION The ADA4800-KGD is voltage buffer integrated with an active The ADA4800-KGD is ideal for driving the input of the Analog load. The buffer is a low power, high speed, low noise, high slew Devices, Inc., 12-bit and 14-bit high resolution analog front ends rate, fast settling, fixed gain of 1 monolithic amplifier for charge- (AFE), such as the AD9928, the AD9990, the AD9920A, the coupled device (CCD) applications. For CCD applications, the AD9923A, and the AD9970 to AD9979 family. active load current source (I ) can load the open source CCD AL The versatility of the ADA4800-KGD allows for seamless sensor outputs, and the buffer can drive the AFE load. The active interfacing with many CCD sensors from various manufacturers. current load can also be switched off to use the ADA4800-KGD The ADA4800-KGD operates at supply voltages as low as 4 V as a unity-gain buffer. The buffer consumes only 20 mW of static and up to 17 V. power. In applications where power savings is critical, the ADA4800-KGD features a power save mode that further reduces Additional application and technical information can be found the total current consumption. The bandwidth of the ADA4800- in the ADA4800 data sheet. KGD buffer is also fully adjustable through the IDRV pin. The buffer of the ADA4800-KGD employs a push-pull output stage architecture, providing drive current and maximum slew capability for both rising and falling signal transitions. At a 4.7 mA quiescent current setting, it provides 400 MHz, 3 dB bandwidth, which makes this buffer well suited for CCD sensors from machine vision to digital still camera applications. 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. No Tel: 781.329.4700 2017 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. 15621-001ADA4800-KGD Known Good Die TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................4 Applications ....................................................................................... 1 ESD Caution...................................................................................4 Functional Block Diagram .............................................................. 1 Pin Configuration and Function Descriptions ..............................5 General Description ......................................................................... 1 Test Circuit .........................................................................................6 Revision History ............................................................................... 2 Outline Dimensions ..........................................................................7 Specifications ..................................................................................... 3 Die Specifications and Assembly Recommendations ..............7 Buffer Electrical Characteristics ................................................. 3 Ordering Guide .............................................................................7 Active Current Load Electrical Characteristics ........................ 3 REVISION HISTORY 4/2017Revision 0: Initial Version Rev. 0 Page 2 of 7