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ADG731BSU Datasheet(PDF) 1 Page - Analog Devices |
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ADG731BSU Datasheet(HTML) 1 Page - Analog Devices |
1 / 15 page ADG725/ADG731 = REV. PrD May 2002 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. 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 Analog Devices, Inc., 2002 16-/32- Channel, Serially Controlled 4 Ω Ω Ω Ω Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexers Preliminary Technical Data PRELIMINARY TECHNICAL DATA FEATURES 3-Wire SPI Serial Interface 1.8 V to 5.5 V Single Supply ±2.5 V Dual Supply Operation 4 Ω Ω Ω Ω Ω On Resistance 0.5 Ω Ω Ω Ω Ω On Resistance Flatness 7mm x 7mm 48 lead Chip Scale Package (CSP) or 48 lead TQFP package. Rail to Rail Operation Power On Reset Fast 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 GENERAL DESCRIPTION The ADG725/ADG731 are monolithic CMOS 32 channel/dual 16 channel analog multiplexers with a serially controlled 3-wire interface. The ADG732 switches one of thirty-two inputs (S1-S32) to a common output, D. The ADG725 can be configured as a dual mux switching one of sixteen inputs to one output or a differential mux switching one of sixteen inputs to a differential output. These mulitplexers utilize a 3-wire serial interface that is compatible with SPI TM, QSPITM, MICROWIRETM and some DSP interface standards. On power-up, the internal shift register contains all zeros and all switch are in the OFF state. These multiplexers are designed on an enhanced submi- cron process that provides low power dissipation yet gives high switching speed, very low on resistance and leakage currents. They operate from single supply of 1.8V to 5.5V and ±2.5 V dual supply, making them ideally suited to a variety of applications. On resistance is in the region of a few Ohms and is closely matched between switches and very flat over the full signal range. These parts can operate equally well as either Multiplexers or De-Multiplexers PRODUCT HIGHLIGHTS 1. 3-Wire Serial Interface. 2. +1.8 V to +5.5 V Single 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 Ω. 4. Guaranteed Break-Before-Make Switching Action. 5. 7mm x 7mm 48 lead Chip Scale Package (CSP) or 48 lead TQFP package. FUNCTIONAL BLOCK DIAGRAMS S1 S32 SCLK DIN SYNC D ADG731 INPUT SHIFT REGISTER S1A DA S16A S1B S16B DB ADG725 INPUT SHIFT REGISTER SCLK DIN SYNC and have an input signal range which extends to the sup- plies. 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. They are available in either 48 lead CSP or TQFP package. |
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