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ADG729BRUZ Datasheet(PDF) 1 Page - Analog Devices |
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ADG729BRUZ Datasheet(HTML) 1 Page - Analog Devices |
1 / 13 page ADG728/ADG729 a 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 rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. CMOS, Low Voltage, 2-Wire Serially Controlled, Matrix Switches One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: © Analog Devices, Inc., FUNCTIONAL BLOCK DIAGRAMS S1 S8 SDA D SCL ADG728 S1A DA S4A S1B S4B DB ADG729 RESET INPUT SHIFT REGISTER INPUT SHIFT REGISTER A0 A1 SDA SCL A0 A1 GENERAL DESCRIPTION The ADG728 and ADG729 are CMOS analog matrix switches with a serially controlled 2-wire interface. The ADG728 is an 8-channel matrix switch, while the ADG729 is a dual 4-channel matrix switch. On resistance is closely matched between switches and very flat over the full signal range. These parts can operate equally well as either multiplexers, demultiplexers or switch arrays and the input signal range extends to the supplies. The ADG728 and ADG729 utilize a 2-wire serial interface that is compatible with the I 2C™ interface standard. Both have two external address pins (A0 and A1). This allows the 2 LSBs of the 7-bit slave address to be set by the user. Four of each of the devices can be connected to the one bus. The ADG728 also has a RESET pin that should be tied high if not in use. Each channel is controlled by one bit of an 8-bit word. This means that these devices may be used in a number of different configurations; all, any, or none of the channels may be on at any one time. On power-up of the device, all switches will be in the OFF con- dition and the internal shift register will contain all zeros. All channels exhibit break-before-make switching action pre- venting momentary shorting when switching channels. The ADG728 and ADG729 are available in 16-lead TSSOP packages. PRODUCT HIGHLIGHTS 1. 2-Wire Serial Interface. 2. Single Supply Operation. The ADG728 and ADG729 are fully specified and guaranteed with 3 V and 5 V supply rails. 3. Low On Resistance 2.5 Ω typical. 4. Any configuration of switches may be on at any one time. 5. Guaranteed Break-Before-Make Switching Action. 6. Small 16-Lead TSSOP Package. REV. C APPLICATIONS Data Acquisition Systems Communications Systems Relay Placement Audio and Video Switching Automatic Test Equipment FEATURES 2-Wire Serial Interface 2.7 V to 5.5 V Single Supply 2.5 Ω On Resistance 0.75 Ω On-Resistance Flatness 100 pA Leakage Currents Single 8-to-1 Matrix Switch ADG728 Dual 4-to-1 Matrix Switch ADG729 Power-On Reset Small 16-Lead TSSOP Package Qualified for Automotive Applications 2012 781/461-3113 |
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