Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators Data Sheet ADG3308/ADG3308-1 FEATURES FUNCTIONAL BLOCK DIAGRAM V V CCA CCY Bidirectional logic level translation Operates from 1.15 V to 5.5 V ADG3308/ADG3308-1 Low quiescent current < 1 A No direction pin A1 Y1 A2 Y2 APPLICATIONS Low voltage ASIC level translation A3 Y3 Smart card readers A4 Y4 Cell phones and cell phone cradles Portable communication devices A5 Y5 Telecommunications equipment Network switches and routers A6 Y6 Storage systems (SAN/NAS) A7 Y7 Computing/server applications GPS Y8 A8 Portable POS systems Low cost serial interfaces EN GND Figure 1. GENERAL DESCRIPTION The ADG3308/ADG3308-1 are bidirectional level translators The ADG3308 is available in a compact 20-lead TSSOP and containing eight bidirectional channels. They can be used in a 20-lead LFCSP. The ADG3308-1 is available in a 20-ball multivoltage digital system applications, such as a data transfer WLCSP. The EN pin is referred to the VCCY supply voltage between a low voltage DSP controller and a higher voltage device. for the ADG3308 and to the VCCA supply voltage for the The internal architecture allows the device to perform ADG3308-1. bidirectional level translation without an additional signal to set The ADG3308/ADG3308-1 are guaranteed to operate over the the direction in which the translation takes place. 1.15 V to 5.5 V supply voltage range and the extended 40C to The voltage applied to V sets the logic levels on the A side +85C temperature range. CCA of the device, and VCCY sets the levels on the Y side. For proper PRODUCT HIGHLIGHTS operation, VCCA must always be less than VCCY. The VCCA 1. Bidirectional logic level translation. compatible logic signals applied to the A side of the device appear as V compatible levels on the Y side. Similarly, V 2. Fully guaranteed over the 1.15 V to 5.5 V supply range. CCY CCY compatible logic levels applied to the Y side of the device appear 3. No direction pin. as V compatible logic levels on the A side. CCA 4. Packages: 20-lead TSSOP and 20-lead LFCSP (ADG3308) The enable pin (EN) provides three-state operation on both the and 20-ball WLCSP (ADG3308-1). A side and the Y side pins. When the EN pin is pulled low, the terminals on both sides of the device are in the high impedance state. For normal operation, EN should be driven high. 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 20052016 Analog Devices, Inc. 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Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 04865-001ADG3308/ADG3308-1 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 16 Applications ....................................................................................... 1 Level Translator Architecture ................................................... 16 Functional Block Diagram .............................................................. 1 Input Driving Requirements ..................................................... 16 General Description ......................................................................... 1 Output Load Requirements ...................................................... 16 Product Highlights ........................................................................... 1 Enable Operation ....................................................................... 16 Revision History ............................................................................... 2 Power Supplies ............................................................................ 16 Specif icat ions ..................................................................................... 3 Data Rate ..................................................................................... 17 Absolute Maximum Ratings ............................................................ 6 Applicat ions ..................................................................................... 18 ESD Caution .................................................................................. 6 Layout Guidelines....................................................................... 18 Pin Configurations and Function Descriptions ........................... 7 Outline Dimensions ....................................................................... 19 Typical Performance Characteristics ............................................. 8 Ordering Guide .......................................................................... 20 Test Circuits ..................................................................................... 12 Terminology .................................................................................... 15 REVISION HISTORY 3/16Rev. D to Rev. E Changed CP-20-1 to CP-20-6 ...................................... Throughout Changes to Figure 3 .......................................................................... 7 Updated Outline Dimensions ....................................................... 19 Changes to Ordering Guide .......................................................... 20 10/13Rev. C to Rev. D Removed ADG3308-2 (Throughout) ............................................ 1 Updated Outline Dimensions ....................................................... 19 Changes to Ordering Guide .......................................................... 20 9/07Rev. B to Rev. C Updated Outline Dimensions ....................................................... 19 7/07Rev. A to Rev. B Added Backside-Coated WLCSP Package ...................... Universal Changes to Input Driving Requirements Section ...................... 16 Updated Outline Dimensions ....................................................... 19 Changes to Ordering Guide .......................................................... 20 7/06Rev. 0 to Rev. A Added WLCSP Package..Universal Added Figure 4......7 Updated Outline Dimensions.19 Changes to Ordering Guide....19 1/05Revision 0: Initial Version Rev. E Page 2 of 20