2 I C CMOS 8 12 Unbuffered Analog Switch Array With Dual/Single Supplies Data Sheet ADG2128 FEATURES 2 GENERAL DESCRIPTION I C-compatible interface 2 3.4 MHz high speed I C option The ADG2128 is an analog cross point switch with an 32-lead LFCSP VQ (5 mm 5 mm) array size of 8 12. The switch array is arranged so that Double-buffered input logic there are eight columns by 12 rows, for a total of 96 switch Simultaneous update of multiple switches channels. The array is bidirectional, and the rows and columns Up to 300 MHz bandwidth can be configured as either inputs or outputs. Each of the 96 2 Fully specified at dual 5 V/single +12 V operation switches can be addressed and configured through the I C- On resistance 35 max imum compatible interface. Standard, full speed, and high speed Low quiescent current < 20 A 2 (3.4 MHz) I C interfaces are supported. Any simultaneous Qualified for automotive applications switch combination is allowed. An additional feature of the ADG2128 is that switches can be updated simultaneously, APPLICATIONS RESET using the LDSW command. In addition, a option AV switching in TV allows all of the switch channels to be reset/off. At power-on, Automotive infotainment all switches are in the off condition. The device is packaged AV receivers in a 32-lead, 5 mm 5 mm LFCSP VQ. CCTV Ultrasound applications KVM switching Telecom applications Test equipment/instrumentation PBX systems FUNCTIONAL BLOCK DIAGRAM V V V DD SS L ADG2128 1 1 INPUT SCL REGISTER AND LATCHES 8 12 SWITCH ARRAY X0 TO X11 (I/O) SDA 7 TO 96 DECODER 96 96 LDSW LDSW A2 A1 A0 GND Y0 TO Y7 (I/O) Figure 1. Rev. D 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 20062012 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 05464-001ADG2128 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Load Switch (LDSW) ................................................................. 18 Applications ....................................................................................... 1 Readback ..................................................................................... 18 General Description ......................................................................... 1 Serial Interface ................................................................................ 19 2 Functional Block Diagram .............................................................. 1 High Speed I C Interface ........................................................... 19 Revision History ............................................................................... 2 Serial Bus Address ...................................................................... 19 Specifications ..................................................................................... 3 Writing to the ADG2128 ............................................................... 20 2 I C Timing Specifications ............................................................ 7 Input Shift Register .................................................................... 20 Timing Diagram ........................................................................... 8 Write Operation.......................................................................... 22 Absolute Maximum Ratings ............................................................ 9 Read Operation........................................................................... 22 ESD Caution .................................................................................. 9 Evaluation Board ............................................................................ 24 Pin Configuration and Function Descriptions ........................... 10 Using the ADG2128 Evaluation Board ................................... 24 Typical Performance Characteristics ........................................... 11 Power Supply ............................................................................... 24 Test Circuits ..................................................................................... 15 Schematics ................................................................................... 25 Terminology .................................................................................... 17 Outline Dimensions ....................................................................... 27 Theory of Operation ...................................................................... 18 Ordering Guide .......................................................................... 27 Automotive Products ................................................................. 27 RESET/Power-On Reset ............................................................ 18 REVISION HISTORY 10/12Rev. C to Rev. D 5/06Rev. 0 to Rev. A 2 Changes to Ordering Guide .......................................................... 27 Added I C Information ...................................................... Universal Changes to Table 1 ............................................................................. 3 8/12Rev. B to Rev. C Changes to Table 2 ............................................................................. 5 Updated Outline Dimensions (Changed CP-32-1 to CP-32-7) ...... 27 Changes to Table 4 ............................................................................. 9 Changes to Ordering Guide .......................................................... 27 Changes to Figure 24 ...................................................................... 14 Changes to Terminology Section ................................................. 17 11/11Rev. A to Rev. B Changes to Figure 35 ...................................................................... 23 Changes to Features Section ........................................................... 1 Changes to the Ordering Guide ................................................... 27 Changes to Schematics Section .................................................... 25 Updated Outline Dimensions ....................................................... 27 1/06Revision 0: Initial Version Changes to the Ordering Guide .................................................... 27 Added Automotive Products Section........................................... 27 Rev. D Page 2 of 28