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AD5686R датащи(PDF) 3 Page - Analog Devices |
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AD5686R датащи(HTML) 3 Page - Analog Devices |
3 / 6 page Circuit Note CN-0229 Rev. 0 | Page 3 of 6 –0.3 –0.2 –0.1 0 0.1 0.2 0.3 DAC CODE Use the external 54 V, 600 W transient voltage suppressors (TVSs) as the first stage of enhanced ESD protection. Place power Schottky diodes in series with a 1 kΩ, 0.5 W resistor on the VSENSE+ and VSENSE− pins of the AD5750-2, and place a 50 mA, 30 V polyswitch on the VOUT and IOUT pins. These protective circuits are included in the EVAL-CN0229-SDPZ circuit board to provide 50 V overvoltage protection and 50 mA overcurrent protection. The optional external protection circuits are not shown in the simplified schematic of Figure 1 but can be found in the detailed schematic (EVAL-CN0229-SDPZ-PADSSchematic pdf file) in the CN0229 Design Support package: http://www.analog.com/CN0229-DesignSupport. Construct the circuit on a multilayer printed circuit board (PCB) board with a large area ground plane. Use proper layout, grounding, and decoupling techniques to achieve optimum system performance and low EMI (see Tutorial MT-031, Grounding Data Converters and Solving the Mystery of "AGND" and "DGND," and Tutorial MT-101, Decoupling Techniques). Figure 3. DNL for 0 V to 5 V Output Range –0.01 0 0.01 0.02 DAC CODE Measurements Integral nonlinearity (INL), differential nonlinearity (DNL), and output error are the most important specifications for PLC, DCS, and other process control systems. The AD5750-2 has highly flexible and configurable output ranges that can be tailored to meet the needs of the application. Measurements of INL, DNL, and output error for the circuit are shown in Figure 2, Figure 3, and Figure 4, respectively. This data was taken at 25°C in the voltage output mode. The AD5750-2 range was set for 0 V to 5 V. The test results for all the other ranges are listed in Table 1. –1.0 –0.5 0.0 0 1.0 1.5 DAC CODE Figure 4. Output Error for 0 V to 5 V Output Range Figure 2. INL for 0 V to 5 V Output Range |
Аналогичный номер детали - AD5686R |
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Аналогичное описание - AD5686R |
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