AD5232EVAL10 Analog Devices Inc, AD5232EVAL10 Datasheet
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AD5232EVAL10
Specifications of AD5232EVAL10
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AD5232EVAL10 Summary of contents
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FEATURES Dual-channel, 256-position resolution 10 kΩ, 50 kΩ, and 100 kΩ nominal terminal resistance Nonvolatile memory maintenance of wiper settings Predefined linear increment/decrement instructions Predefined ±6 dB step log taper increment/decrement instructions SPI-compatible serial interface Wiper settings and EEMEM readback ...
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AD5232 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—10 kΩ, 50 kΩ, 100 kΩ Versions .. 3 Interface Timing Characteristics ................................................ ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS ± 10 ± 10% and Table 1. Parameter DC CHARACTERISTICS, RHEOSTAT MODE 2 Resistor Differential Nonlinearity Resistor Nonlinearity 2 Nominal Resistor ...
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AD5232 Parameter 5, 9 DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion V Settling Time W Resistor Noise Voltage Crosstalk ( Analog Crosstalk ( FLASH/EE MEMORY RELIABILITY 10 Endurance 11 Data Retention 1 Typical ...
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INTERFACE TIMING CHARACTERISTICS All input control voltages are specified with t characteristics are measured using both V Table Parameter Clock Cycle Time (t ) CYC CS Setup Time CLK Shutdown Time to CS Rise Input Clock Pulse ...
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AD5232 Timing Diagrams CLK CPOL = 1 HIGH OR LOW SDI t 8 SDO B16 RDY NOTES 1. B24 IS AN EXTRA BIT THAT IS NOT DEFINED, BUT IT IS USUALLY THE LSB OF THE ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to GND GND GND − ...
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AD5232 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic Description 1 CLK Serial Input Register Clock. Shifts in one bit at a time on positive clock edges. 2 SDI Serial Data Input. The MSB is ...
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TYPICAL PERFORMANCE CHARACTERISTICS 2. 2.7V 1. 1.50 SS 1.25 1.00 INL T = –40°C A INL T 0.75 0.50 0.25 0 –0.25 INL T = +85°C A –0.50 –0.75 –1.00 –1.25 –1.50 –1.75 –2.00 ...
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AD5232 5. 2. –50 –35 –20 – TEMPERATURE (°C) Figure 11. I vs. Temperature CH1 5.00V CH2 5.00V M 2.00ms CH3 5.00V ...
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+2. –2. – 100mV rms 25°C A –60 ...
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AD5232 TEST CIRCUITS Figure 22 to Figure 32 define the test conditions that are used in the Specifications section. NC DUT CONNECT Figure 22. Resistor Position Nonlinearity Error (Rheostat Operation; ...
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DUT W V GND CONNECT Figure 30. Common-Mode Leakage Current RDAC1 RDAC2 OUT ...
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AD5232 THEORY OF OPERATION The AD5232 digital potentiometer is designed to operate as a true variable resistor replacement device for analog signals that remain within the terminal voltage range of V The basic voltage range is limited ...
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SERIAL DATA INTERFACE The AD5232 contains a 4-wire SPI-compatible digital interface (SDI, SDO and CLK) and uses a 16-bit serial data-word that is loaded MSB first. The format of the SPI-compatible word is shown in Table 7. The ...
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AD5232 Command bits are identified as Cx, address bits are Ax, and data bits are Dx. The command instruction codes are defined in Table 8. The SDO output shifts out the last eight bits of data clocked into the serial ...
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ADVANCED CONTROL MODES The AD5232 digital potentiometer contains a set of user program- ming features to address the wide variety of applications avail- able to these universal adjustment devices. Key programming features include the following: • Independently programmable read and ...
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AD5232 USING ADDITIONAL INTERNAL, NONVOLATILE EEMEM The AD5232 contains additional internal user storage registers (EEMEM) for saving constants and other 8-bit data. Table 9 provides an address map of the internal nonvolatile storage registers, which are shown in the functional ...
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Table 11. Nominal Individual Segment Resistor Values (Ω) Segmented Resistor Size for R End-to-End Values AB Device 10 kΩ 50 kΩ Resolution Version Version 8-Bit 78.10 390.5 PROGRAMMING THE VARIABLE RESISTOR Rheostat Operation The nominal resistances of the RDACx between ...
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AD5232 PROGRAMMING THE POTENTIOMETER DIVIDER Voltage Output Operation The digital potentiometer easily generates an output voltage pro- portional to the input voltage applied to a given terminal. For example, connecting Terminal and Terminal B to GND ...
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Table 16 illustrates using the left shift-by-one to change circuit gain steps. Table 16. SDI SDO Action 0xC1XX 0xXXXX Moves Wiper W2 to double the present data value contained in the RDAC2 register in the direction of ...
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AD5232 OUTLINE DIMENSIONS 0.15 0.05 ORDERING GUIDE Number of Model Channels AD5232BRU10 2 AD5232BRU10-REEL7 2 2 AD5232BRUZ10 2 2 AD5232BRUZ10-REEL7 2 AD5232BRU50 2 AD5232BRU50-REEL7 2 2 AD5232BRUZ50 2 2 AD5232BRUZ50-REEL7 2 AD5232BRU100 2 AD5232BRU100-REEL7 2 2 AD5232BRUZ100 2 2 AD5232BRUZ100-REEL7 ...
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NOTES Rev Page AD5232 ...
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AD5232 NOTES ©2001–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D02618-0-10/09(A) Rev Page ...