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ADG3308BRUZ-REEL7 Datasheet(PDF) 1 Page - Analog Devices |
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ADG3308BRUZ-REEL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translators ADG3308/ADG3308-1 Rev. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2005–2007 Analog Devices, Inc. All rights reserved. FEATURES Bidirectional logic level translation Operates from 1.15 V to 5.5 V Low quiescent current < 1 μA No direction pin APPLICATIONS Low voltage ASIC level translation Smart card readers Cell phones and cell phone cradles Portable communication devices Telecommunications equipment Network switches and routers Storage systems (SAN/NAS) Computing/server applications GPS Portable POS systems Low cost serial interfaces FUNCTIONAL BLOCK DIAGRAM A1 Y1 GND VCCY VCCA A8 Y8 A7 Y7 A6 Y6 A5 Y5 A4 Y4 A3 Y3 A2 Y2 EN ADG3308/ADG3308-1/ ADG3308-2 Figure 1. GENERAL DESCRIPTION The ADG3308/ADG3308-1/ADG3308-2 are bidirectional level translators containing eight bidirectional channels. They can be used in multivoltage digital system applications, such as a data transfer between a low voltage DSP controller and a higher voltage device. The internal architecture allows the device to perform bidirectional level translation without an additional signal to set the direction in which the translation takes place. The voltage applied to VCCA sets the logic levels on the A side of the device, and VCCY sets the levels on the Y side. For proper operation, VCCA must always be less than VCCY. The VCCA compatible logic signals applied to the A side of the device appear as VCCY compatible levels on the Y side. Similarly, VCCY compatible logic levels applied to the Y side of the device appear as VCCA compatible logic levels on the A side. The enable pin (EN) provides three-state operation on both the 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. The ADG3308 is available in a compact 20-lead TSSOP and a 20-lead LFCSP, the ADG3308-1 is available in a 20-ball WLCSP, and the ADG3308-2 is available in a backside-coated 20-ball WLCSP. The EN pin is referred to the VCCY supply voltage for the ADG3308 and to the VCCA supply voltage for the ADG3308-1 and ADG3308-2. The ADG3308/ADG3308-1/ADG3308-2 are guaranteed to operate over the 1.15 V to 5.5 V supply voltage range and the extended −40°C to +85°C temperature range. PRODUCT HIGHLIGHTS 1. Bidirectional logic level translation. 2. Fully guaranteed over the 1.15 V to 5.5 V supply range. 3. No direction pin. 4. Packages: 20-lead TSSOP and 20-lead LFCSP (ADG3308), 20-ball WLCSP (ADG3308-1), and backside-coated 20-ball WLCSP (ADG3308-2). |
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