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AD7492CB 数据表(PDF) 3 Page - Analog Devices |
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AD7492CB 数据表(HTML) 3 Page - Analog Devices |
3 / 14 page EVAL-AD7492CB REV. A –3– Continued on next page LK10 This link must be in position "A" if a bipolar AIN signal is being applied to the bipolar Vin socket, SK3. This link must be in position "B" if a unipolar AIN signal is being applied to the unipolar Vin socket, SK1. LK11 This link is used to connect in the impedence matching resistor, R5, for unipolar Vin. LK12 This link is used to connect in the impedence matching resistor, R7, for bipolar Vin. SET-UP CONDITIONS Care should be taken before applying power and signals to the evaluation board to ensure that all link positions are as per the required operating mode. Table I shows the position in which all the links are set when the evaluation board is sent out. All links are set for use with the EVAL-CONTROL BRD2. Table I. Initial Link and Switch Positions Link No. Position Function. LK1 B Provides DC bias voltage to the analog bias-up circuit using AD780 external reference. LK2 B The digital logic circuitry is powered from the EVAL-CONTROL BRD2. LK3 B Part goes into partial sleep mode if low power operation selected. LK4 A CONVST signal is provided by the EVAL-CONTROL BRD2 via J1. LK5 A RD signal is provided by the EVAL-CONTROL BRD2 via J1. LK6 A CS signal is provided by the EVAL-CONTROL BRD2 via J1. LK7 A AD7492 VDRIVE pin is connected to the AD7492 DVDD pin. LK8 B VDD is supplied by the EVAL-CONTROL BRD2 via J1. LK9 B VSS is supplied by the EVAL-CONTROL BRD2 via J1. LK10 A The AD7492 Vin pin is connected to the bipolar Vin. LK11 Inserted Unipolar Vin impedence matching resistor is connected into circuit. LK12 Inserted Bipolar Vin impedence matching resistor is connected into circuit. |
类似零件编号 - AD7492CB |
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类似说明 - AD7492CB |
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