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AD7401A Datasheet(PDF) 9 Page - Analog Devices |
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AD7401A Datasheet(HTML) 9 Page - Analog Devices |
9 / 20 page AD7401A Rev. 0 | Page 9 of 20 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS VDD1 1 VIN+ 2 VIN– 3 NC 4 GND2 16 NC 15 VDD2 14 MCLKIN 13 NC 5 NC 12 NC 6 MDAT 11 VDD1 7 NC 10 GND1 8 GND2 9 NC = NO CONNECT AD7401A TOP VIEW (Not to Scale) Figure 5. Pin Configuration Table 8. Pin Function Descriptions Pin No. Mnemonic Description 1, 7 VDD1 Supply Voltage, 4.5 V to 5.5 V. This is the supply voltage for the isolated side of the AD7401A and is relative to GND1. 2 VIN+ Positive Analog Input. Specified range of ±250 mV. 3 VIN− Negative Analog Input. Normally connected to GND1. 4 to 6, 10, 12, 15 NC No Connect. 8 GND1 Ground 1. This is the ground reference point for all circuitry on the isolated side. 9, 16 GND2 Ground 2. This is the ground reference point for all circuitry on the nonisolated side. 11 MDAT Serial Data Output. The single bit modulator output is supplied to this pin as a serial data stream. The bits are clocked out on the rising edge of the MCLKIN input and valid on the following MCLKIN rising edge. 13 MCLKIN Master Clock Logic Input. 20 MHz maximum. The bit stream from the modulator is valid on the rising edge of MCLKIN. 14 VDD2 Supply Voltage. 3 V to 5.5 V. This is the supply voltage for the nonisolated side and is relative to GND2. |
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