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resources:eval:ad8418a-evalz [23 Apr 2014 14:10] – created Jessica Brown | resources:eval:ad8418a-evalz [28 Apr 2014 20:17] (current) – [AD8418A Evaluation Board] Jessica Brown | ||
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+ | ====== Evaluation Board for the AD8418A Current Sense Amplifier ====== | ||
+ | |||
+ | ===== Features ===== | ||
+ | **Enables quick breadboarding/ | ||
+ | Easily configurable for unidirectional or bidirectional operation\\ | ||
+ | Includes provision for current sense resistor\\ | ||
+ | Easy connection to test equipment** | ||
+ | |||
+ | ===== General Description===== | ||
+ | The AD8418ARM-EVALZ and AD8418AR-EVALZ are designed to aid in the evaluation of [[adi> | ||
+ | |||
+ | The AD8418ARM-EVALZ accommodates the [[adi> | ||
+ | |||
+ | ===== AD8418A Evaluation Board ===== | ||
+ | <WRAP centeralign> | ||
+ | //Figure 1. Component Side// | ||
+ | {{ : | ||
+ | //Figure 2. Circuit Side//</ | ||
+ | |||
+ | ===== Evaluation Board Hardware ===== | ||
+ | ==== Power Supplies==== | ||
+ | The [[adi> | ||
+ | |||
+ | ==== Components ==== | ||
+ | The [[adi> | ||
+ | |||
+ | ==== Setting the Reference Voltage ==== | ||
+ | The [[adi> | ||
+ | |||
+ | === Unidirectional Operation=== | ||
+ | |||
+ | For unidirectional operation, the output can be set at the negative rail (near ground) or at the positive rail (near V< | ||
+ | |||
+ | === Bidirectional Operation=== | ||
+ | |||
+ | For bidirectional operation, the output is typically set at half scale for equal range in both directions. To configure this on the evaluation board, place the jumper for P1 at V< | ||
+ | |||
+ | === External Referenced Output=== | ||
+ | |||
+ | An external supply may also be used to set the reference voltage by placing the jumpers at EXT for both headers and applying a voltage to any one of the EXT pins. This configuration biases the output to the external supply. | ||
+ | |||
+ | The external supply can also be divided by 2. For this reference level, place the jumper for P1 at EXT, place the jumper for P2 at GND, and apply the external supply to the EXT pin near P1. | ||
+ | |||
+ | By default, the output of the evaluation board is biased at midsupply. | ||
+ | |||
+ | ===== Evaluation Board Schematic===== | ||
+ | {{ : | ||
+ | <WRAP centeralign>// | ||
+ | |||
+ | ===== Evaluation Board Layout===== | ||
+ | {{ : | ||
+ | <WRAP centeralign>// | ||
+ | {{ : | ||
+ | <WRAP centeralign>// | ||
+ | |||
+ | ===== Ordering Information===== | ||
+ | ==== Bill of Materials==== | ||
+ | **Table 1. Bill of Materials**\\ | ||
+ | ^Quantity^Reference Designator^Package^Description^ | ||
+ | |1 |C1 |C1206 |Capacitor, | ||
+ | |1 |C3 |C3528 |Capacitor, | ||
+ | |2 |P1, P2 |CNSAMTEC2X3H330LD36|6-pin header| | ||
+ | |1 |U1 |8-lead MSOP or 8-lead SOIC |AD8418AWBRMZ or AD8418AWBRZ| | ||
+ | |||