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====== EVAL-AD4130-8WARDZ Hardware Guide ======
====== Set-up Procedures ======
After following the instructions in the [[resources:eval:user-guides:ad4130-8:softwareprocedures|Software Procedures]] section, set up the evaluation and SDP-K1 board as detailed in this section.
  * **Warning:** The evaluation software and drivers must be installed before connecting the EVAL-AD4130-8WARDZ evaluation board and EVAL-SDP-CK1Z board to the USB port of the PC to ensure the PC correctly recognizes the evaluation system.
  - Connect the EVAL-AD4130-8WARDZ to the controller board 
        - Using the Arduino Connectors {{:resources:eval:user-guides:20220308_110921.jpg?400|}}
  

====== Block Diagram ======
{{:resources:eval:user-guides:artboard_1.png|}}

====== Hardware Link Options ======
^ Link Numbers   ^ Colour ^ Default Position ^ Descirption ^ Rough Board Location ^
| LK1-3 | White | Inserted   | Ties AVSS and DGND together | N/A|
| LK4 | Black  | A | External Reference voltage select: \\ Pos A: REFIN + is connected to the external +2.5V reference. \\ Pos B: REFIN + is connected to the external +1.8V reference \\ (+1.8V reference not currently available on the board).| Right of J10|
| LK5 | Blue | Inserted   | Noise Test. Channels AIN0 + AIN1| Right of Thermocouple Connection (A2)|
| LK6 | White  |Inserted| REFIN(-) to AVSS| Left of Switch S3|
| LK7 | Black |A| External +2.5V Reference: \\ Pos A: ADR391B \\ Pos B: ADR3625B \\ (The ADR3625B is not currently available on the board) |Right of J10|
| LK8 | Black |Uninserted |Connects AIN10 to R95. When used with LK9 you can use the AD4130-8 to measure it's own IOVDD current| Left of T_IOVDD |
| LK9 | Black |Uninserted |Connects AIN11 to R95. When used with LK8 you can use the AD4130-8 to measure it's own IOVDD current| Left of T_IOVDD |
| LK10 | Black |Uninserted |Connects AIN12 to R96. When used with LK11 you can use the AD4130-8 to measure it's own AVDD current| Left of Switch S1 |
| LK11 | Black |Uninserted |Connects AIN13 to R96. When used with LK10 you can use the AD4130-8 to measure it's own AVDD current| Left of Switch S1 |
| LK12 | White | Uninserted | Connects AVSS to -1.8V. LK1-3 must be removed before this jumper is inserted| Right of Switch S1 |
| LK14 |Black| Uninserted| Connects REFIN(+) to AVDD | Below 3.5mm Jack Connection (A1)|
| LK15 |Black| A| ADP150-3.3 Powered up: \\ Pos A: LDO is on \\ Pos B: LDO is off| Below Switch S1 |
| LK16 |Black| A| ADP150-1.8 Powered up: \\ Pos A: LDO is on \\ Pos B: LDO is off| Below Switch S1 |
| LK17 |Black | A |Arduino communication:\\ Pos A: Standard \\ Pos B: Alternative| Between Arduino Connectors|
| LK18 |Black | A |Arduino communication:\\ Pos A: Standard \\ Pos B: Alternative| Between Arduino Connectors|
| LK19 |Black | A |Arduino communication:\\ Pos A: Standard \\ Pos B: Alternative| Between Arduino Connectors|
| LK20 |Black | A |Arduino communication:\\ Pos A: Standard \\ Pos B: Alternative| Between Arduino Connectors|
| LK21 |Black | Uninserted |Connects the CLK pin to the INT pin | Below T_IOVDD|
| LK22 |Red| Uninserted| Thermocouple - Cold Junction Resistor Bypass| Left of Thermocouple Connection (A2)|
| LK23 |Blue| Uninserted| Short EXC+/PSW: Pos Inserted = 4 Wire Bridge| Left of Switch S3|
| LK24 | Blue | Uninserted| Short EXC+/PSW: Pos Inserted = 4 Wire Bridge| Left of Switch S3|
| LK25 | Blue |Uninserted| Short EXC+/REFIN+: Pos Inserted = 4 Wire Bridge | Left of Switch S3|
| LK26 | Blue |Uninserted| Allows the user to use an external excitation source| Left of Switch S3|
| LK27 | Black  |B| REFIN(+) to connector: \\ Pos A: To Connector J10 (BRIDGE) \\ Pos B: To Connector J8 (RTD)| Bottom right of J10|
| LK28 |Black  |B| REFIN(-) to connector: \\ Pos A: To Connector J10 (BRIDGE) \\ Pos B: To Connector J8 (RTD)| Bottom right of J10|
| LK29 | White |Inserted | Connects CLK pin to GND | Left of J2|
| LK30 |Black| Uninserted | Connects AIN11 to LA_ELECTORDE trace of the A1 connector| Below 3.5mm Jack Connection (A1)|
| LK31 |Black| Uninserted | Connects AIN14 to RA_ELECTORDE trace of the A1 connector| Below 3.5mm Jack Connection (A1)|
| LK32 |Black| Uninserted | Connects AIN15 to DRIVEN_ELECTORDE trace of the A1 connector| Below 3.5mm Jack Connection (A1)|
| LK35 |Red| Uninserted| Precision Reference 5.11k ohm Resistor Bypass| Right of J8|
| LK36 |Red| Uninserted| Headroom Resistor Bypass| Right J8|
| LK37 |Red| Uninserted | Precision Sense 10k ohm Resistor Bypass| Right of J8|
| LK45 | Black | Uninserted |AVDD/IOVDD short| Bottom Right of Switch S2|
| T_AVDD | Black |A| AVDD Supply: \\ Pos A: Directly to supply rail \\ Pos B: Through R96 (LK10 and 11 must be inserted) which allows the AD4130-8 to measure it's own AVDD current consumption | Below Switch S2|
| T_IOVDD |Black| A |IOVDD Supply: \\ Pos A: Directly to supply rail \\ Pos B: Through R95 (LK8 and 9 must be inserted) which allows the AD4130-8 to measure it's own IOVDD current consumption | Below Switch S2|
| S1 | Switch | +3.3V |AVDD Voltage connection: \\ Pos A: +3.3V from the LDO \\ Pos B: +1.8V from the LDO \\ Pos C: +1.8V from the LDO \\ Pos D: External voltage from J7 terminal block | Top of the Board|
| S2 | Switch | +3.3V |IOVDD Voltage connection: \\ Pos A: +3.3V from the LDO \\ Pos B: +1.8V from the LDO \\ Pos C: +1.8V from the LDO \\ Pos D: External voltage from J7 terminal block | Top of the board|
| S3 | Switch | REF1+/- |REFIN+/- connection: \\ Pos A: REFIN1+/- \\ Pos B: REFIN2+/- (AIN14 and AIN15) \\ Pos C: REFOUT and AVSS (Internal Reference needs to be enabled in the ADC Control register) | Middle of the board|

{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_links.png  |  }} 

\\
====== On Board Connections ======

==== 3.5mm Jack Connector A1 ====
**Functionality:**
   * **ECG**
{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_ecg.png?600|}}
\\
==== Thermocouple Connector A2 ====
{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_thermocouple.png?600|}}
\\
==== Connector J8: DC (Analog Input) ====
**Functionality:**
   * **Noise Test**
   * **RTD**
   * **Thermocouple**
   * **Thermistor**

^ Connection^ Function  ^
| 1   | AIN0 (AINP) with DC filtering(DNI) and noise test channel. IOUT0 Excitation current for RTDs   |
|2    | AIN1 (AINN) with DC filtering(DNI) and noise test channel. IOUT1 Excitation current for 3 wire RTD    |
|3    | AIN 2 with DC filtering **(RTD+ connection)** **(TC+ connection)**  |
|4    | AIN 3 with DC filtering **(RTD- connection)** **(TC- connection)**  |
|5    | AIN 4 with DC filtering **(Cold Junction+ connection)** **(Thermistor+ connection)**   |
|6    | AIN 5 with DC filtering **(Cold Junction- connection)** **(Thermistor- connection)**   |
|7    | External Reference +   |
|8    | External Reference -   |


==== Connector J10: Wire Bridge (Analog Input) ====
**Functionality:**
   * **4/6 Wire bridge**
   

^ Connection^ Function  ^
| 1 | Ground/shield connection   |
|2| Excitation- /Power Switch Function for Wire Bridge|
|3| External Reference- / Sense- |
|4|AIN 6 (AINN) with DC filtering |
|5|AIN 7 (AINP) with DC filtering |
|6|External Reference+ / Sense+|
|7|Excitation+ /AVDD supply for Wire Bridge|
|8| Ground/shield connection|
==== Connector J12: DC (Analog Input) ====
**Functionality:**
   * **DC connections for AIN8 to AIN15**

^ Connection^ Function  ^
| 1    | AIN 8 without DC filtering    |
| 2    | AIN 9 without DC filtering    |
| 3    | AIN 10 without DC filtering   |
| 4    | AIN 11 without DC filtering   |
| 5    | AIN 12 without DC filtering   |
| 6    | AIN 13 without DC filtering   |
| 7    | AIN 14 without DC filtering   |
| 8    | AIN 15 without DC filtering   |


==== Connector J7: External Power ====

^ Connection^ Function          ^
| 1    | External IOVDD connection   |
| 2    | External GND connection   |
| 3    | External AVSS connection   |
| 4    | External AVDD connection  |

==== Digital Connectors ====
=== Arduino Connector P1-P5 ===
{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_arduino_sch.png  |  }}

\\
=== PMOD Connector P7 ===
^ Connection^ Function  ^ Connection^ Function  ^
| 1 | CS_N   | 7 | SYNC_N   |
| 2 | MOSI/DIN  |8 | INT   |
| 3 | MISO/DOUT   |9 | N/C   |
| 4 | SCLK   |10 | N/C   |
| 5 | GND   |11 | GND   |
| 6 | V_USB   | 12 | V_USB   |
{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_arduino.png?600|}}
==== SMA/SMB Connections ====
There is 1 SMA/SMB connections on the board. To allow clock signals into the board.
  - SMB J2 Brings external MCLK to the AD4130-8
{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_mclk.png?600|}}



====== Power Supplies ======
The evaluation board receives power through the controller board when connected to the PC via USB.
Linear regulators generate the required power supply levels from the applied USB voltage.
  * Location of AVDD, AVSS and IOVDD control links are highlighted in Red in the diagram below
  * Each regulators can be shut down using their shut down links highlighted in orange below

===AVDD (S1) and AVSS (LK12) selection ===
  - **3.3V supply (DEFAULT)**
      * 3.3V regulator supplies AVDD
      * AVSS tied to GND [LK1-3 (Blue)]
  - **1.8V supply **
      * 1.8V regulator supplies AVDD
      * AVSS tied to GND [LK1-3 (Blue)]
  - **±1.8V split supply **
      * 1.8 regulator supplies AVDD
      * -3 regulator to a -1.8V regulator supplied AVSS
  - **VREF supply **
      * The external reference supplies AVDD [LK14]
      * AVSS tied to GND [LK1-3 (Blue)]
  - **External AVDD/AVSS**
      * Connections on Connector J7


^Supply^Regulator ^ Shut down Link (ORANGE) ^ 
| 3.3V regulator| [[adi>en/products/adp150.html| ADP150ACBZ-3.3-R7]] | LK15 |
| 1.8V regulator| [[adi>en/products/adp150.html| ADP150ACBZ-1.8-R7]] | LK16 | 
| -3V regulator| [[adi>en/products/ltc1983.html| LTC1983ES6-3#PBF]] | R3 | 
| -1.8V regulator| [[adi>en/products/adp7182.html| ADP7182AUJZ-1.8-R7]] | R3 | 

===IOVDD (S2) selection ===
  - **3.3V supply (DEFAULT)**
      * 3.3V regulator supplies IOVDD
      * GND tied to AVSS [LK1-3 (Blue)]
  - **1.8V supply **
      * 1.8V regulator supplies IOVDD
      * GND tied to AVSS [LK1-3 (Blue)]
  - **±1.8V split supply **
      * 1.8 regulator supplies AVDD
      * GND Split from AVSS [LK1-3 (Blue)]
  - **Tied to AVDD (LK45) **
      * AVDD supplies IOVDD
      * GND tied to AVSS [LK1-3 (Blue)]
  - **External IOVDD/GND**
      * Connections on Connector J7

^Supply^Regulator ^ Shut down Link (ORANGE) ^ 
| 3.3V regulator| [[adi>en/products/adp150.html| ADP150ACBZ-3.3-R7]] | LK15 |
| 1.8V regulator| [[adi>en/products/adp150.html| ADP150ACBZ-1.8-R7]] | LK16 | 

{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_power_links.png?600|}}
====== Serial Interface ======
There are four primary signals: CS, SCLK, MOSI/DIN, and MISO/DOUT (all are inputs, except for MISO/DOUT, which is an output).
===Serial communication options===
  - Arduino connection using the SDP-K1 
  - PMOD connector
  - Standalone mode
      * Removing the links LK17, 18, 19, 20 and using the pins from these links can then be used to fly-wire the signals to an alternative digital capture setup

For an introduction to the Serial Peripheral Interface (SPI), click [[adi>en/analog-dialogue/articles/introduction-to-spi-interface.html|here]]

{{ :resources:eval:user-guides:eval-ad7124:eval-ad7124:hardware_guide:spi_pic.png?direct&600 |}}


====== Reference Options ======
  - AD4130-8 Internal Reference +2.5V/+1.25V
  - **DEFAULT** [[adi>en/products/adr391.html|ADR391]] On Board external reference 
  - External Reference Connector J8
        * Option to use 5.11k ohm precision resistor (R91) insert LK35 (Used for RTD Demo mode)
        * Option to use 10k ohm precision resistor (R91) insert LK37 (Used for Thermistor Demo mode)
  - External Reference Connector J10


====Selecting the reference source: ====
===Software===
Example shows setting reference for Channel 0, for channel n, go to register CONFIG[n]
  - Board should be correctly connected to ACE
  - Open AD4130-8 memory map
  - Search for the CONFIG[0] register
  - Set the REF_SEL_N[0] to the desired reference source or the Data(hex) to the relevant bits
       - **Dedicated reference pins** REFIN1 +/- (Hex value 00, Binary Value 00). 
       - **From GPIO0/1** REFIN2 +/- (Hex value 01, Binary Value 01). 
       - **Internal Reference** REFIN_REFOUT (Hex Value 02, Binary Value 10).
       - **AVDD to AVSS** (Hex Value 02, Binary Value 11).

{{:resources:eval:user-guides:ad4130-8:ad4130_ref_sel_ace.png?600|}}
===Hardware===
^ Link Numbers   ^ Type ^ Default Position ^ Descirption ^ Rough Board Location ^
| S3 | Switch | REF1+/- |REFIN+/- connection: \\ Pos A: REFIN1+/- \\ Pos B: REFIN2+/- (AIN14 and AIN15) \\ Pos C: REFOUT and AVSS (Internal Reference needs to be enabled in the ADC Control register) |

If REFIN1+/- or REFIN2+/- is selected the options below are available using links shown in the diagram below
  - [[adi>en/products/adr391.html | ADR391]], REFIN - shorted to AVSS (LK6)
  - External Reference Connector J8
  - External Reference Connector J10


==== Silk Screen ====

^ Location of Reference related components ^ Location of Reference Links ^
|{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_refs.png?400|}}|{{:resources:eval:user-guides:ad4130-8:eval_ad4130_8wardz_refin_links.png?400|}}|



====== Schematics ======
{{ :resources:eval:user-guides:ad4130-8:eval-ad4130-8wardz_schematic.pdf |EVAL-AD4130-8WARDZ Schematic pdf}}

====== Bill of Materials ======
{{ :resources:eval:user-guides:ad4130-8:eval-ad4130-8wardz_bom.pdf |AD4130-8 Evaluation Board Bill of Materials}}

[[resources:eval:user-guides:ad4130-8:softwareprocedures|Next Page: Software Procedures]]

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