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AD5425YRMZ-REEL Folha de dados(PDF) 8 Page - Analog Devices |
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AD5425YRMZ-REEL Folha de dados(HTML) 8 Page - Analog Devices |
8 / 25 page Data Sheet AD5425 Rev. C | Page 7 of 24 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Figure 3. Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Function 1 I OUT1 DAC Current Output. 2 I OUT2 DAC Analog Ground. This pin should normally be tied to the analog ground of the system. 3 GND Digital Ground Pin. 4 SCLK Serial Clock Input. Data is clocked into the input shift register on each falling edge of the serial clock input. This device can accommodate clock rates of up to 50 MHz. 5 SDIN Serial Data Input. Data is clocked into the 8-bit input register on each falling edge of the serial clock input. 6 SYNC Active Low Control Input. This is the frame synchronization signal for the input data. When SYNC goes low, it powers on the SCLK and DIN buffers and the input shift register is enabled. Data is transferred on each falling edge of the following 8 clocks. 7 LDAC Load DAC Input. Updates the DAC output. The DAC is updated when this signal goes low or alternatively; if this line is held permanently low, an automatic update mode is selected whereby the DAC is updated after 8 SCLK falling edges with SYNC low. 8 V DD Positive Power Supply Input. This part can be operated from a supply of 2.5 V to 5.5 V. 9 V REF DAC Reference Voltage Input Terminal. 10 R FB DAC Feedback Resistor Pin. Establishes voltage output for the DAC by connecting to external amplifier output. IOUT1 1 IOUT2 2 GND 3 SCLK 4 SDIN 5 RFB 10 VREF 9 VDD 8 LDAC 7 SYNC 6 AD5425 TOP VIEW (Not to Scale) |
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