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resources:eval:user-guides:eval-adicup360:hardware:cn0216 [15 Jan 2016 22:45] – reformatting for ADICUP360 Brandon Bushey | resources:eval:user-guides:eval-adicup360:hardware:cn0216 [03 Jan 2021 21:46] (current) – fix links Robin Getz | ||
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====== EVAL-CN0216-ARDZ Shield ====== | ====== EVAL-CN0216-ARDZ Shield ====== | ||
- | [[http:// | + | [[adi>CN0216|CN-0216]] is a precision weigh scale signal conditioning system. It uses the [[adi>AD7791|AD7791]], |
Ultralow noise, low offset voltage, and low drift amplifiers are used at the front end for amplification of the low-level signal from the load cell. The circuit yields 15.3 bit noise-free code resolution for a load cell with a full-scale output of 10 mV. | Ultralow noise, low offset voltage, and low drift amplifiers are used at the front end for amplification of the low-level signal from the load cell. The circuit yields 15.3 bit noise-free code resolution for a load cell with a full-scale output of 10 mV. | ||
- | {{: | + | {{: |
- | This circuit allows great flexibility in designing a custom low-level signal conditioning front end that gives the user the ability to easily optimize the overall transfer function of the combined sensor-amplifier-converter circuit. The [[http:// | + | |
+ | This circuit allows great flexibility in designing a custom low-level signal conditioning front end that gives the user the ability to easily optimize the overall transfer function of the combined sensor-amplifier-converter circuit. The [[adi>AD7791|AD7791]] maintains good performance over the complete output data range, from 9.5 Hz to 120 Hz, which allows it to be used in weigh scale applications that operate at various low speeds. | ||
\\ | \\ | ||
\\ | \\ | ||
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\\ | \\ | ||
\\ | \\ | ||
+ | <note important> | ||
+ | |||
+ | ---- | ||
===== Connectors and Jumper Configurations ===== | ===== Connectors and Jumper Configurations ===== | ||
- | | + | {{ : |
+ | \\ | ||
==== Sensor Connector ==== | ==== Sensor Connector ==== | ||
{{ : | {{ : | ||
- | |Pin Number|Pin Function| | + | ^Pin Number^Pin Function^ |
|Pin 1|Not Used| | |Pin 1|Not Used| | ||
|Pin 2|- Excitation| | |Pin 2|- Excitation| | ||
Line 29: | Line 34: | ||
|Pin 7|+ Excitation| | |Pin 7|+ Excitation| | ||
|Pin 8|Not Used| | |Pin 8|Not Used| | ||
+ | {{: | ||
+ | \\ | ||
+ | \\ | ||
- | ==== Bridge Configuration ==== | + | ==== REF SEL / Bridge Configuration ==== |
+ | These set of jumpers allow the circuit to be configured for use with 4-wire or 6-wire load cells. | ||
<WRAP round info 70%>\\ **__NOTE__** - Any 4 or 6 wire load cells can be used with the **EVAL-CN0216-ARDZ**.\\ The Tedeah Huntleigh Model 1042 load cell was used during testing. | <WRAP round info 70%>\\ **__NOTE__** - Any 4 or 6 wire load cells can be used with the **EVAL-CN0216-ARDZ**.\\ The Tedeah Huntleigh Model 1042 load cell was used during testing. | ||
</ | </ | ||
- | {{: | + | {{: |
- | Position " | + | Place jumpers/ |
- | * P2 - Connects REFIN+ to Sensor +Sense pin | + | * P1 - Connects |
- | * P3 - Connects REFIN- to Sensor -Sense pin\\ {{: | + | * P2 - Connects |
- | Position " | + | \\ |
- | * P2 - Connects REFIN+ to 5V supply | + | {{: |
- | * P3 - Connects REFIN- to GND | + | Place jumpers/ |
+ | * P1 - Connects | ||
+ | * P2 - Connects | ||
+ | \\ | ||
==== Chip Select ==== | ==== Chip Select ==== | ||
+ | This set of jumpers allows for changing the pin mapping of the AD7791 chip select line to different Arduino digital pins. | ||
+ | Place jumper/ | ||
+ | \\ | ||
+ | {{: | ||
+ | CS - Arduino **Digital Pin 10** | ||
+ | \\ | ||
+ | {{: | ||
+ | CS - Arduino **Digital Pin 9** | ||
+ | \\ | ||
+ | {{: | ||
+ | CS - Arduino **Digital Pin 8** | ||
+ | <WRAP left round info 60%> | ||
+ | If using an EVAL-CN0216-ARDZ board prior to Rev.C: | ||
+ | To change the CS pin, Install a 0-ohm resistor to resistor pads R7,R8 or R9 | ||
+ | * R7 - Arduino **Digital Pin 8** | ||
+ | * R8 - Arduino **Digital Pin 9** | ||
+ | * R9 - Arduino **Digital Pin 10** | ||
+ | </ | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ===== Schematic, Bill of Materials, Gerber Files, Layout Files ===== | ||
- | ===== Schematic, PCB Layout, Bill of Materials ===== | ||
<WRAP round 80% download> | <WRAP round 80% download> | ||
+ | EVAL-CN0216-ARDZ Rev C Files | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
+ | * {{: | ||
- | [[http:// | + | EVAL-CN0216-ARDZ Rev B Files |
- | * Schematics | + | * {{: |
- | * PCB Layout | + | * {{: |
- | * Bill of Materials | + | * {{: |
- | * Allegro | + | * {{: |
+ | * {{: | ||
</ | </ | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ===== Change Log ===== | ||
+ | |||
+ | RevB to RevC: | ||
+ | * U3 (from ADG3304BRUZ to NLSX4402FMUTCG) | ||
+ | * U4 added (NLSX4402FMUTCG) | ||
+ | * C19 and C20 added (0.1uF) | ||
+ | * R7, R8, R9 added to short MOSI, MISO, SCLK lines between ICSP and arduino D11, D12, D13 | ||
+ | * AD7791_CS header added | ||
+ | |||
+ | ---- | ||
===== Software ===== | ===== Software ===== | ||
- | * [[resources: | + | * [[resources: |
- | | + | * [[resources:eval:user-guides:arduino-uno: |
- | | + | |
- | * [[https:// | + | |
- | {{navigation EVAL-ADICUP360# | + | //End of Document// |