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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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DAC7750IPWPR bảng dữ liệu(PDF) 36 Page - Texas Instruments |
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DAC7750IPWPR bảng dữ liệu(HTML) 36 Page - Texas Instruments |
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36 / 53 page  ISO7631 DACX750 IOUT Current Output 0-20mA, 4-20mA, 0-24mA +24V 100nF 15 Ÿ REFIN REFOUT GND HART-IN HART Signal FSK 1200-2200Hz AVDD DVDD DVDD-EN +24V 0.1PF 0.1PF 22PF 100pF 0.1PF SCLK DIN SDO LATCH CLR ALARM 10 NŸ INC OUTA OUTB VCC2 GND2 0.1PF 0.1PF ISO7631 INC OUTA OUTB VCC2 GND2 VCC1 GND1 OUTC INA INB VCC1 GND1 OUTC INA INB Digital Controller GND VDD 0.1PF 0.1PF 0.1PF SCLK MOSI MISO /CS GPIO GPIO Isolation Barrier +24V Field Supply Input Field GND Field Connections +24V Unidirectional TVS Diode Pair Copyright © 2016, Texas Instruments Incorporated 36 DAC7750, DAC8750 SBAS538B – DECEMBER 2013 – REVISED JUNE 2016 www.ti.com Product Folder Links: DAC7750 DAC8750 Submit Documentation Feedback Copyright © 2013–2016, Texas Instruments Incorporated 9.2 Typical Application 9.2.1 Voltage and Current Output Driver for Factory Automation AND Control, EMC/EMI Protected Figure 62. DACx750 in an Analog Output (AO) Module 9.2.1.1 Design Requirements Analog I/O modules are used by programmable logic controllers (PLCs) and distributed control systems (DCSs) to interface to sensors, actuators, and other field instruments. These modules must meet stringent electrical specifications for both performance as well as protection. These outputs are typically current loops based on the 4-mA to 20-mA range. Common error budgets accommodate 0.1% full-scale range total unadjusted error (% FSR TUE) at room temperature. Designs which desire stronger accuracy over temperature frequently implement calibration. Often times the PLC back-plane provides access to a 12-V to 36-V analog supply from which a majority of supply voltages are derived. 9.2.1.2 Detailed Design Procedure Figure 63 illustrates a common generic solution for realizing these desired voltage and current output spans. |
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