ad5262-eval Analog Devices, Inc., ad5262-eval Datasheet
ad5262-eval
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ad5262-eval Summary of contents
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... The AD5260 contains an 8-bit serial register while the AD5262 contains a 9-bit serial register. Each bit is clocked into the register on the positive edge of the CLK. The AD5262 address bit determines the corresponding VR latch to be loaded with the last 8 bits of the data word during the positive edging of CS strobe ...
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... W RDAC Making Full-Scale Code Change (AD5262 only 0V Measure V with p kHz kW/200 kW (AD5262 only N_WB kHz –2– or – < +85 C unless otherwise noted Min ...
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... Reset Pulsewidth CLK Fall to CS Rise Hold Time CS Rise to Clock Rise Setup NOTES The AD5260/AD5262 contains 1,968 transistors. Die Size: 89 mil. × 105 mil. 9,345 sq. mil. 1 Typicals represent average readings at 25°C and V 2 Resistor position nonlinearity error R-INL is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper positions. ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD5260/AD5262 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
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... Figure 2a. AD5260 Timing Diagram 1 SDI CLK 0 1 RDAC REGISTER LOAD OUT 0 Figure 2b. AD5262 Timing Diagram REV. 0 Table II. AD5262 9-Bit Serial-Data Word Format ADDR LSB MSB SDI (DATA IN) ...
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... No Connect (Users should not connect anything other than dummy pad on this pin) 14 SDO Serial Data Output, Open Drain transistor requires pull-up resistor. SDO GND PR CS AD5262 PIN FUNCTION DESCRIPTIONS Pin Number £ ...
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... RDAC register when the CS line returns to logic high. For the AD5262 the last 9 bits of the data word entered into the serial register are held when CS returns high. Any extra bits are ignored ...
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... The RDAC contains a string of equal resistor segments, with an will be clamped by the array of analog switches, that act as the wiper connection. The number of positions is the resolution of the device. The AD5260/ AD5262 have 256 connection points allowing it to provide better V DD than 0.4% set-ability resolution. Figure 11 shows an equivalent ...
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... W and B in this state to no more than avoid degradation or possible destruction of the internal switches. Like the mechanical potentiometer the RDAC replaces, the AD5260/AD5262 parts are totally symmetrical. The resistance between the wiper W and terminal A also produces a digitally controlled complementary resistance R symmetrical programmability of the various terminal connections ...
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... AD5260/AD5262 —Typical Performance Characteristics 0.8 0.7 5V 0.6 0.5 0.4 0.3 12V 0.2 5V 0.1 0 –0.1 15V –0 128 160 192 224 256 CODE – Decimal TPC 1. R-INL vs. Code vs. Supply Voltages 0.5 0 0.1 0 –0.1 –0.2 –0 125 C A –0.4 –0 128 160 192 224 256 CODE – ...
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... Digital Input LOGIC Voltage –6 –12 –18 –24 –30 –36 –42 –48 –54 96 128 160 192 224 256 1k CODE – Decimal TPC 17. Gain vs. Frequency vs. Code, R –11– AD5260/AD5262 LOGIC 0 15V/ 0. 0.001 100 – ...
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... AD5260/AD5262 CODE = – – – – – – – –48 –54 1k 10k 100k 1M FREQUENCY – Hz TPC 18. Gain vs. Frequency vs. Code = CODE = 20k ...
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... Test Circuit 7. Common-Mode Leakage Current –13– AD5260/AD5262 40 CODE SET TO MID-SCALE T = 150 LOTS SAMPLE SIZE = 135 –0.50 –0.40 –0.30 –0.20 –0.10 500 CHANNEL-TO-CHANNEL R AB TPC 29. Channel-to-Channel Resistance Matching (AD5262 10 PSRR (dB LOG PSS (%/%) = ...
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... WA WB drift reduces to 5 ppm/∞C. APPLICATIONS Bipolar Operation from Dual Supplies The AD5260/AD5262 can be operated from dual supplies enabling control of ground referenced AC signals or bipolar operation. The AC signal, as high can be applied directly across DD SS terminals A– ...
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... ADR292, and AD1584 can be applied at the input of the digital potentiometer. Programmable 4-to-20 mA Current Source A programmable 4-to-20 mA current source can be implemented with the circuit shown in Figure 19. REF191 is a unique low supply headroom and high current handling precision reference –15– AD5260/AD5262 ˆ Ê ˆ ...
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... A R1 AD5260 150k W OP2177 B A1 –5V –15V Figure 20. Programmable Bidirectional Current Source Programmable Low-Pass Filter . Digital potentiometer AD5262 can be used to construct a second S order Sallen Key Low-Pass Filter (see Figure 21). The design equations are: ( ...
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... For users who need lower resistance and still maintain the numbers of step adjustment, they can parallel multiple devices. For example, Figure 23 shows a simple scheme of paralleling both channels of the AD5262. To adjust half of the resistance linearly per step, users need to program both channels coherently with the same settings. ...
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... UP/DOWN AD8402 2 5.5 3-Wire ± 3, 5.5 AD5207 2 3-Wire ± 2.75, 5.5 AD5232 2 3-Wire ± 2.75, 5.5 2 AD5235 2 3-Wire ± 3, 5.5 AD5242 2 2-Wire ± AD5262 2 3-Wire AD5203 4 5.5 3-Wire ± 2.75, 5.5 AD5233 4 3-Wire ± 3, 5.5 AD5204 4 3-Wire AD8403 4 5.5 3-Wire ± 3, 5.5 AD5206 6 3-Wire 1 For the most current information on digital potentiometers, check the website at: 2 Future product, consult factory for latest status ...
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... MAX 0.002 (0.05) 8 0.0256 0.0118 (0.30) 0 0.0079 (0.20) (0.65) 0.0075 (0.19) PLANE 0.0035 (0.090) BSC 16-Lead TSSOP (RU-16) 0.201 (5.10) 0.193 (4.90 0.177 (4.50) 0.169 (4.30) 0.256 (6.50) 0.246 (6.25 PIN 1 0.006 (0.15) 0.0433 (1.10) MAX 0.002 (0.05 0.0256 (0.65) 0.0118 (0.30) 0.0079 (0.20) BSC 0.0075 (0.19) PLANE 0.0035 (0.090) –19– AD5260/AD5262 0.028 (0.70) 0.020 (0.50) 0.028 (0.70) 0.020 (0.50) ...
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