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AD5440 bảng dữ liệu(PDF) 8 Page - Analog Devices |
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AD5440 bảng dữ liệu(HTML) 8 Page - Analog Devices |
8 / 33 page Data Sheet AD5428/AD5440/AD5447 Rev. C | Page 7 of 32 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS R/W CS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 IOUTA RFBA VREFA DB7 DAC A/B DGND AGND RFBB VREFB VDD DB0 (LSB) DB4 DB5 DB6 DB3 DB2 DB1 IOUTB AD5428 TOP VIEW (Not to Scale) Figure 4. Pin Configuration 20-Lead TSSOP (RU-20) Table 4. AD5428 Pin Function Descriptions Pin No. Mnemonic Description 1 AGND DAC Ground Pin. This pin should typically be tied to the analog ground of the system, but can be biased to achieve single-supply operation. 2, 20 IOUTA, IOUTB DAC Current Outputs. 3, 19 RFBA, RFBB DAC Feedback Resistor Pins. These pins establish voltage output for the DAC by connecting to an external amplifier output. 4, 18 VREFA, VREFB DAC Reference Voltage Input Terminals. 5 DGND Digital Ground Pin. 6 DAC A/B Selects DAC A or DAC B. Low selects DAC A; high selects DAC B. 7 to14 DB7 to DB0 Parallel Data Bits 7 Through 0. 15 CS Chip Select Input. Active low. Used in conjunction with R/W to load parallel data to the input latch or to read data from the DAC register. 16 R/W Read/Write. When low, used in conjunction with CS to load parallel data. When high, used in conjunction with CS to read back contents of the DAC register. 17 VDD Positive Power Supply Input. This part can be operated from a supply of 2.5 V to 5.5 V. |
Số phần tương tự - AD5440_15 |
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Mô tả tương tự - AD5440_15 |
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