AD5231BRUZ10-REEL7 Analog Devices Inc, AD5231BRUZ10-REEL7 Datasheet
AD5231BRUZ10-REEL7
Specifications of AD5231BRUZ10-REEL7
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AD5231BRUZ10-REEL7 Summary of contents
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FEATURES 1024-position resolution Nonvolatile memory maintains wiper setting Power-on refresh with EEMEM setting EEMEM restore time: 140 μs typ Full monotonic operation 10 kΩ, 50 kΩ, and 100 kΩ terminal resistance Permanent memory write protection Wiper setting readback Predefined linear ...
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AD5231 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 Timing Characteristics—10 kΩ, 50 kΩ, 100 ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS ± 10 ± 10 Table 1. Parameter DC CHARACTERISTICS— RHEOSTAT MODE 2 Resistor Differential Nonlinearity 2 Resistor ...
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AD5231 Parameter POWER SUPPLIES Single-Supply Power Range Dual-Supply Power Range Positive Supply Current Negative Supply Current EEMEM Store Mode Current EEMEM Restore Mode Current 7 8 Power Dissipation 5 Power Supply Sensitivity 5, 9 DYNAMIC CHARACTERISTICS Bandwidth Total Harmonic Distortion ...
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TIMING CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS 5 and −40°C < Table 2. Parameter 2, 3 INTERFACE TIMING CHARACTERISTICS Clock Cycle Time (t ) CYC CS ...
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AD5231 Timing Diagrams CLK CPOL = 1 HIGH OR LOW SDI t 8 SDO B24 RDY * NOT DEFINED, BUT NORMALLY LSB OF CHARACTER PREVIOUSLY TRANSMITTED. THE CPOL = 1 MICROCONTROLLER COMMAND ALIGNS THE INCOMING ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameters V to GND GND GND A–B, A–W, B–W 1 ...
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AD5231 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 O1 Nonvolatile Digital Output 1. ADDR = 0x1, data bit position D0. For example, to store O1 high, the data bit format is 0x310001. ...
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TYPICAL PERFORMANCE CHARACTERISTICS 1 +85°C A 1.0 0 –40°C A –0.5 –1.0 0 128 256 384 512 640 CODE (Decimal) Figure 6. INL vs. Code −40°C, +25°C, +85°C Overlay ...
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AD5231 2.7V 25° 128 256 384 512 640 CODE (Decimal) Figure 12. Wiper On Resistance vs. Code ...
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CODE = 0x200 –10 0x100 0x80 –20 0x40 0x20 –30 0x10 0x08 –40 0x04 0x02 –50 0x01 –60 1k 10k 100k FREQUENCY (Hz) Figure 18. Gain vs. Frequency vs. Code kΩ (Figure 32 CODE ...
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AD5231 CS CLK SDI 2mA/DIV 4ms/DIV *SUPPLY CURRENT RETURNS TO MINIMUM POWER CONSUMPTION IF INSTRUCTION 0 (NOP) IS EXECUTED IMMEDIATELY AFTER INSTRUCTION 1 (READ EEMEM). Figure 24. I vs. Time when Restoring Data from EEMEM DD 100 ...
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TEST CIRCUITS Figure 26 to Figure 35 define the test conditions used in the specifications. NC DUT CONNECT Figure 26. Resistor Position Nonlinearity Error (Rheostat Operation; R-INL, R-DNL) DUT V+ ...
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AD5231 THEORY OF OPERATION The AD5231 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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DIGITAL INPUT/OUTPUT CONFIGURATION All digital inputs are ESD-protected, high input impedance that can be driven directly from most digital sources. Active at logic low, PR and WP must be tied they are not used internal ...
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AD5231 TERMINAL VOLTAGE OPERATION RANGE The AD5231’s positive V and negative V DD define the boundary conditions for proper 3-terminal digital potentiometer operation. Supply signals present on the A, B, and W terminals that exceed ...
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In Table 6, command bits are C0 to C3, address bits are A3 to A0, Data Bit D0 to Data Bit D9 are applicable to RDAC, and D0 to D15 are applicable to EEMEM. Table 6. AD5231 24-Bit Serial Data-Word ...
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AD5231 ADVANCED CONTROL MODES The AD5231 digital potentiometer includes a set of user programming features to address the wide number of applications for these universal adjustment devices. Key programming features include: • Scratchpad programming to any desirable values • Nonvolatile ...
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Using Additional Internal Nonvolatile EEMEM The AD5231 contains additional user EEMEM registers for storing any 16-bit data such as memory data for other compo- nents, look-up tables, or system identification information. Table 9 provides an address map of the internal ...
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AD5231 100 256 512 CODE (Decimal) Figure 44. R (D) and R (D) vs. Decimal Code WA WB The general equation that determines the programmed output resistance between W and ...
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PROGRAMMING EXAMPLES The following programming examples illustrate a typical sequence of events for various features of the AD5231. See Table 7 for the instructions and data-word format. The instruction numbers, addresses, and data appearing at SDI and SDO pins are ...
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AD5231 FLASH/EEMEM RELIABILITY The Flash/EE memory array on the AD5231 is fully qualified for two key Flash/EE memory characteristics, namely Flash/EE memory cycling endurance and Flash/EE memory data retention. Endurance quantifies the ability of the Flash/EE memory to be cycled ...
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APPLICATIONS BIPOLAR OPERATION FROM DUAL SUPPLIES The AD5231 can be operated from dual supplies ±2.5 V, which enables control of ground referenced ac signals or bipolar operation. AC signals as high across Terminal A to ...
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AD5231 U1 AD5231 W + OUT +5V +2.5VREF –2.5VREF TRIM GND V+ AD8552 ADR421 V– A1 –5V Figure 49. 10-Bit Bipolar DAC 10-BIT UNIPOLAR DAC Figure 50 shows a unipolar 10-bit DAC using ...
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PROGRAMMABLE BIDIRECTIONAL CURRENT SOURCE For applications that require bidirectional current control or higher voltage compliance, a Howland current pump can be a solution. If the resistors are matched, the load current R2A R2B R1 = × ...
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AD5231 RDAC CIRCUIT SIMULATION MODEL The internal parasitic capacitances and the external load dominates the ac characteristics of the RDACs. The −3 dB bandwidth of the AD5231BRU10 (10 kΩ resistor) measures 370 kHz at half scale when configured as a ...
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... OUTLINE DIMENSIONS 0.15 0.05 ORDERING GUIDE Model R (kΩ) AB AD5231BRU10 10 AD5231BRU10-REEL7 10 1 AD5231BRUZ10 10 1 AD5231BRUZ10-REEL7 10 AD5231BRU50 50 AD5231BRU50-REEL7 50 1 AD5231BRUZ50 50 1 AD5231BRUZ50-REEL7 50 AD5231BRU100 100 AD5231BRU100-RL7 100 AD5231BRUZ100 1 100 1 AD5231BRUZ100-RL7 100 Pb-free part. 5.10 5.00 4. 4.50 6.40 4.40 BSC 4. PIN 1 1.20 MAX 0.20 0.09 8° ...
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AD5231 NOTES Purchase of licensed components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I Rights to use these components system, ...