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AD7376ARWZ100 Datasheet(PDF) 1 Page - Analog Devices |
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AD7376ARWZ100 Datasheet(HTML) 1 Page - Analog Devices |
1 / 20 page +30 V/±15 V Operation 128-Position Digital Potentiometer AD7376 FEATURES 128 positions 10 kΩ, 50 kΩ, 100 kΩ 20 V to 30 V single-supply operation ±10 V to ±15 V dual-supply operation 3-wire SPI®-compatible serial interface THD 0.006% typical Programmable preset Power shutdown: less than 1 µA i CMOS™ process technology APPLICATIONS High voltage DAC Programmable power supply Programmable gain and offset adjustment Programmable filters, delays Actuator control Audio volume control Mechanical potentiometer replacement FUNCTIONAL BLOCK DIAGRAM VDD A W B VSS SDI CLK CS SDO 7 7 R 7-BIT LATCH 7-BIT SERIAL REGISTER Q D CK AD7376 SHDN SHDN RS GND Figure 1. GENERAL DESCRIPTION The AD73761 is one of the few high voltage, high performance digital potentiometers2 on the market. This device can be used as a programmable resistor or resistor divider. The AD7376 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers with enhanced resolution, solid-state reliability, and programmability. With digital rather than manual control, the AD7376 provides layout flexibility and allows closed-loop dynamic controllability. The AD7376 features sleep-mode programmability in shutdown that can be used to program the preset before device activation, thus providing an alternative to costly EEPROM solutions. The AD7376 is available in 14-lead TSSOP and 16-lead wide body SOIC packages in 10 kΩ, 50 kΩ, and 100 kΩ options. All parts are guaranteed to operate over the −40°C to +85°C extended industrial temperature range. 1 Patent number: 54952455. 2 The terms digital potentiometer and RDAC are used interchangeably. Rev. D Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother 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 ©1997–2011 Analog Devices, Inc. All rights reserved. |
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