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resources:eval:ad8479r-ebz [06 Jul 2015 09:36] – [General Description] Emmanuel Adradosresources:eval:ad8479r-ebz [07 Jul 2015 03:26] (current) – Emmanuel Adrados
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 The AD8479R-EBZ is specifically designed to aid the evaluation of the AD8479, a very high common-mode voltage precision difference amplifier. The design of this board emphasizes simplicity and ease of use. This board comes with connection options for the input and output terminals (SMA and Vector pins) and a predefined configuration with the reference pins both tied to ground. The AD8479R-EBZ is specifically designed to aid the evaluation of the AD8479, a very high common-mode voltage precision difference amplifier. The design of this board emphasizes simplicity and ease of use. This board comes with connection options for the input and output terminals (SMA and Vector pins) and a predefined configuration with the reference pins both tied to ground.
  
-The AD8479 datasheet covers the details of the device’s operation. It also shows the basic connections for operating the device with a single or dual supply. It is recommended to consult the datasheet in conjunction with this evaluation board user guide especially during powering up for the first time. +The AD8479 datasheet covers the details of the device’s operation. It also shows the basic connections for operating the device with a single or dual supply. It is recommended to consult the datasheet in conjunction with this evaluation board user guide especially when powering up for the first time. 
  
 ==== AD8479 Evaluation Board Photograph ====  ==== AD8479 Evaluation Board Photograph ==== 
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   * An oscilloscope    * An oscilloscope 
   * A SMA termination   * A SMA termination
-  * Two cables of BNC-to-SMA or BNC-to-Grabber to connect the signal source and oscilloscope to the AD8479 evaluation board +  * Two BNC-to-SMA or BNC-to-Grabber cables to connect the signal source and oscilloscope to the AD8479 evaluation board 
-  * Three cables of Banana-to-Grabber to connect the power supply to the AD8479 evaluation board+  * Three Banana-to-Grabber cables to connect the power supply to the AD8479 evaluation board
  
 <WRAP centeralign>{{ :resources:eval:ad8479_minimal_requirement_for_quick_start_operation.jpg?300 |}}</WRAP> <WRAP centeralign>{{ :resources:eval:ad8479_minimal_requirement_for_quick_start_operation.jpg?300 |}}</WRAP>
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 To start the initial board configuration, do the following steps:  To start the initial board configuration, do the following steps: 
  
-1. Ensure that the power supply is off. Connect the supply leads to the vector pins labelled with +Vs, Gnd1 and –Vs as shown in Figure 4.+1. Ensure that the power supply is off. Connect the supply leads to the vector pins labelled +Vs, Gnd1 and –Vs as shown in Figure 4.
 <WRAP centeralign>{{ :resources:eval:ad8479_power_connections.jpg?300 |}}</WRAP> <WRAP centeralign>{{ :resources:eval:ad8479_power_connections.jpg?300 |}}</WRAP>
 <WRAP centeralign>//Figure 4. AD8479 Evaluation Board with the Basic Power Connections//</WRAP> <WRAP centeralign>//Figure 4. AD8479 Evaluation Board with the Basic Power Connections//</WRAP>
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 <WRAP centeralign>//Figure 5. AD8479 Evaluation Board with Source Signal Connected//</WRAP> <WRAP centeralign>//Figure 5. AD8479 Evaluation Board with Source Signal Connected//</WRAP>
  
-3. Lastly, connect the oscilloscope to the SMA connector (J4) using the BNC to SMA Cable as shown on figure 6.+3. Connect the oscilloscope to the SMA connector (J4) using the BNC to SMA cable as shown on figure 6.
 <WRAP centeralign>{{ :resources:eval:ad8479_completed_connections.jpg?300 |}}</WRAP> <WRAP centeralign>{{ :resources:eval:ad8479_completed_connections.jpg?300 |}}</WRAP>
 <WRAP centeralign>//Figure 6. Completed Connections for Quick Start Usage//</WRAP> <WRAP centeralign>//Figure 6. Completed Connections for Quick Start Usage//</WRAP>
  
 ==== Power Up ====  ==== Power Up ==== 
-After completing the initial configuration, power up the board using the following steps:+After completing the initial configuration, power up the board as follows:
  
 1. Set the power supply to ±15.0 V.  1. Set the power supply to ±15.0 V. 
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 ==== Setting the Reference Voltage ====  ==== Setting the Reference Voltage ==== 
-By default, the output of the evaluation board is reference to ground as shown on its schematic in Figure 9. +By default, the output of the evaluation board is referenced to ground as shown on its schematic in Figure 9. 
  
-An external supply may also be used to set the reference voltage by removing first the R7 and then apply a voltage to any of the REF pins. This configuration biases the output to the external supply.+An external supply may also be used to set the reference voltage by removing the R7 and then applying a voltage to any of the REF pins. This configuration biases the output to the external supply.
  
 ==== Applying Common Mode Voltage ====  ==== Applying Common Mode Voltage ==== 
-Common mode voltage may be applied to the SMA connector (J2) or to the vector pin labelled with VCM after providing necessary parts to R3, R4 and R5.+Common mode voltage may be applied to the SMA connector (J2) or to the vector pin labelled VCM after providing necessary parts to R3, R4 and R5.
  
-==== Provisions for Other Components ==== +==== Other Components ==== 
 There are provisions available on the AD8479 Evaluation boards for the following components: There are provisions available on the AD8479 Evaluation boards for the following components:
   * Input termination resistor (R1, R2)   * Input termination resistor (R1, R2)
resources/eval/ad8479r-ebz.txt · Last modified: 07 Jul 2015 03:26 by Emmanuel Adrados

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