Datenblatt-Suchmaschine für elektronische Bauteile |
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AD5684R Datenblatt(PDF) 3 Page - Analog Devices |
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AD5684R Datenblatt(HTML) 3 Page - Analog Devices |
3 / 12 page Evaluation Board User Guide UG-459 Rev. 0 | Page 3 of 12 EVALUATION BOARD HARDWARE POWER SUPPLIES To use the evaluation board with the SDP board, a 6 V power supply is required, which is connected to Connector J3. The evaluation board can be used without the SDP board. In this case, the J1 and J2 connectors are used as the power supply inputs. Both AGND and DGND inputs are provided on the board. The AGND and DGND planes are connected at one location close to the AD568x(R). It is recommended that AGND and DGND not be connected elsewhere in the system to avoid ground loop problems. All supplies are decoupled to ground with 10 µF tantalum and 0.1 µF ceramic capacitors. Table 1. Power Supply Connectors Connector Number Voltage J1 External, V LOGIC supply J2 Analog power supply, V DD J3 6 V board positive power supply LINK OPTIONS A number of link options are incorporated in the evaluation board and must be set for the required operating conditions before using the board. The functions of these link options are described in detail in Table 3. Table 2 lists the positions of the different links controlled by PC, via the USB port, and the SDP board in single-supply mode is required. Table 2. Link Options Setup for SDP Control (Default) Link Number Option LK1 A LK2 A LK3 C LK4 B LK5 A LK6 B Table 3. Link Functions Link Number Option LK1 This link selects the DAC analog voltage source. Position A selects the internal voltage source (INT_VDD) from the ADP3331. Position B selects an external supply voltage (EXT_VDD). LK2 This link selects the DAC digital voltage source. Position A selects the digital voltage source from the SDP board (V_IO). Position B selects an external digital supply voltage (EXT_VLOGIC). LK3 This link selects the reference source. Position A selects the on-board 2.5 V reference as the reference source. Do not use this option with the AD5686R/AD5684R. Position B selects the on-board 5 V reference as the reference source. Do not use this option with the AD5686R/AD5684R. Position C selects the internal reference of the AD5686R/AD5684R as the reference source for the AD5686/AD5684. Position D selects an off board voltage reference via the EXT_REF connector. LK4 This link selects the gain setting of the AD5686/AD5684 (not populated). Position A selects gain of 2. Position B selects gain of 1. LK5 This link selects the gain setting of the AD5686R/AD5684R. Position A selects gain of 2. Position B selects gain of 1. LK6 This link selects whether the AD5686R/AD5684R or AD5686/AD5684 is accessed by the software. Position A selects the AD5686/AD5684. Position B selects the AD5686R/AD5684R. |
Ähnliche Teilenummer - AD5684R |
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Ähnliche Beschreibung - AD5684R |
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