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ADG731BCP-REEL7 Datasheet(PDF) 1 Page - Analog Devices |
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ADG731BCP-REEL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page REV. A a ADG725/ADG731 16-/32-Channel, Serially Controlled 4 1.8 V to 5.5 V, 2.5 V, Analog Multiplexers One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. 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 that may result from its use. No 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 companies. FEATURES 3-Wire SPI Compatible Serial Interface 1.8 V to 5.5 V Single Supply 2.5 V Dual-Supply Operation 4 On Resistance 0.5 On Resistance Flatness 7 mm x 7 mm 48-Lead Chip Scale Package (LFCSP) or 48-Lead TQFP Package Rail-to-Rail Operation Power-On Reset 42 ns Switching Times Single 32-to-1 Channel Multiplexer Dual/Differential 16-to-1 Channel Multiplexer TTL/CMOS Compatible Inputs For Functionally Equivalent Devices with Parallel Interface, See ADG726/ADG732 APPLICATIONS Optical Applications Data Acquisition Systems Communication Systems Relay Replacement Audio and Video Switching Battery-Powered Systems Medical Instrumentation Automatic Test Equipment FUNCTIONAL BLOCK DIAGRAM S1 S32 D ADG731 INPUT SHIFT REGISTER S1A DA S16A S1B S16B DB ADG725 INPUT SHIFT REGISTER SCLK DIN SYNC SCLK DIN SYNC GENERAL DESCRIPTION The ADG731/ADG725 are monolithic, CMOS, 32-channel/ dual 16-channel analog multiplexers with a serially controlled 3-wire interface. The ADG731 switches one of 32 inputs (S1–S32) to a common output, D. The ADG725 can be config- ured as a dual mux switching one of 16 inputs to one output, or a differential mux switching one of 16 inputs to a differential output. These mulitplexers utilize a 3-wire serial interface that is com- patible with SPI ®, QSPI™, MICROWIRE™, and some DSP interface standards. On power-up, the Internal Shift Register contains all zeros and all switches are in the OFF state. These multiplexers are designed on an enhanced submicron process that provides low power dissipation yet gives high switch- ing speed with very low on resistance and leakage currents. They operate from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply, making them ideally suited to a variety of applications. On resistance is in the region of a few ohms, is closely matched between switches, and is very flat over the full signal range. These parts can operate equally well as either multiplexers or demultiplexers and have an input signal range that extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels. The ADG731 and ADG725 are serially controlled 32-channel, and dual/differential 16-channel multiplexers, respectively. They are available in either a 48-lead LFCSP or TQFP package. PRODUCT HIGHLIGHTS 1. 3-Wire Serial Interface . 2. 1.8 V to 5.5 V Single-Supply or ±2.5 V Dual-Supply Operation. These parts are specified and guaranteed with 5 V ±10%, 3 V ±10% single-supply, and ±2.5 V ±10% dual-supply rails. 3. On Resistance of 4 W. 4. Guaranteed Break-Before-Make Switching Action. 5. 7 mm ¥ 7 mm 48-Lead Chip Scale Package (LFCSP) or 48-Lead TQFP Package. |
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