This is an old revision of the document!
After following the instructions in the Software Procedures section, set up the evaluation and SDP-K1 board as detailed in this section.
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 |
Functionality:
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 - |
Functionality:
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 |
Functionality:
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 |
Connection | Function |
---|---|
1 | External IOVDD connection |
2 | External GND connection |
3 | External AVSS connection |
4 | External AVDD connection |
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 |
There is 1 SMA/SMB connections on the board. To allow clock signals into the board.
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.
Supply | Regulator | Shut down Link (ORANGE) |
---|---|---|
3.3V regulator | ADP150ACBZ-3.3-R7 | LK15 |
1.8V regulator | ADP150ACBZ-1.8-R7 | LK16 |
-3V regulator | LTC1983ES6-3#PBF | R3 |
-1.8V regulator | ADP7182AUJZ-1.8-R7 | R3 |
Supply | Regulator | Shut down Link (ORANGE) |
---|---|---|
3.3V regulator | ADP150ACBZ-3.3-R7 | LK15 |
1.8V regulator | ADP150ACBZ-1.8-R7 | LK16 |
There are four primary signals: CS, SCLK, MOSI/DIN, and MISO/DOUT (all are inputs, except for MISO/DOUT, which is an output).
For an introduction to the Serial Peripheral Interface (SPI), click here
Example shows setting reference for Channel 0, for channel n, go to register CONFIG[n]
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