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AD5263BRUZ20-REEL7 Arkusz danych(PDF) 1 Page - Analog Devices |
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AD5263BRUZ20-REEL7 Arkusz danych(HTML) 1 Page - Analog Devices |
1 / 28 page Quad, 15 V, 256-Position, Digital Potentiometer with Pin-Selectable SPI/I2C Data Sheet AD5263 Rev. F Document Feedback 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 ©2003–2012 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES 256-position, 4-channel End-to-end resistance 20 kΩ, 50 kΩ, 200 kΩ Pin-selectable SPI®- or I2C®-compatible interface Power-on preset to midscale Two package address decode pins AD0 and AD1 Rheostat mode temperature coefficient 30 ppm/°C Voltage divider temperature coefficient 5 ppm/°C Wide operating temperature range –40°C to +125°C 10 V to 15 V single supply; ±5 V dual supply APPLICATIONS Mechanical potentiometer replacement Optical network adjustment Instrumentation: gain, offset adjustment Stereo channel audio level control Automotive electronics adjustment Programmable power supply Programmable filters, delays, time constants Line impedance matching Low resolution DAC/trimmer replacement Base station power amp biasing Sensor calibration FUNCTIONAL BLOCK DIAGRAM SERIAL INPUT REGISTER AD5263 ADDRESS DECODER SPI/I2C SELECT LOGIC GND A1 W1 B1 A2 W2 B2 A3 W3 B3 A4 W4 B4 CS/AD0 SDI/SDA CLK/SCL VL VDD VSS SHDN RES/AD1 DIS NC/O2 SDO/O1 RDAC 1 REGISTER RDAC 2 REGISTER RDAC 3 REGISTER RDAC 4 REGISTER 8 Figure 1. GENERAL DESCRIPTION The AD5263 is the industry’s first quad-channel, 256-position, digital potentiometer1 with a selectable digital interface. This device performs the same electronic adjustment function as mechanical potentiometers or variable resistors, with enhanced resolution, solid-state reliability, and superior low temperature coefficient performance. Each channel of the AD5263 offers a completely programmable value of resistance between the A terminal and the wiper or between the B terminal and the wiper. The fixed A-to-B terminal resistance of 20 kΩ, 50 kΩ, or 200 kΩ has a nominal temperature coefficient of ±30 ppm/°C and a ±1% channel-to- channel matching tolerance. Another key feature of this part is the ability to operate from +4.5 V to +15 V, or at ±5 V. Wiper position programming presets to midscale upon power- on. Once powered, the VR wiper position is programmed by either the 3-wire SPI or 2-wire I2C-compatible interface. In the I2C mode, additional programmable logic outputs enable users to drive digital loads, logic gates, and analog switches in their systems. The AD5263 is available in a narrow body, 24-lead TSSOP. All parts are guaranteed to operate over the automotive temperature range of –40°C to +125°C. For single- or dual-channel applications, refer to the AD5260/AD5280 or AD5262/AD5282 data sheets. 1 The terms digital potentiometer, VR, and RDAC are used interchangeably. |
Podobny numer części - AD5263BRUZ20-REEL7 |
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Podobny opis - AD5263BRUZ20-REEL7 |
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