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Linear Technology DC2420 Demo Manual

Linear Technology DC2420 Demo Manual

Digital temperature measurement system

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Description
The DC2420 is the starter kit for demonstrating the per-
formance and ease of use of the
complete temperature measurement system on a chip.
This kit includes the DC2399 (main demo circuit contain-
ing the LTC2984) and the DC2210 (a simple experiment
circuit allowing bread boarding). In addition to the starter
demonstration kit, sensor specific demonstration boards
highlighting the performance of RTDs, thermistors, or
thermocouples are also available.
• Universal Temperature Measurement Board – DC2211
• Thermocouple Board – DC2212
• Dedicated RTD Board – DC2213
• Dedicated Thermistor Board – DC2214
TO PC
DC2026
USB PORT
14 CONDUCTOR
RIBON CABLE
Digital Temperature Measurement System
LTC
2984, which is a
®
Figure 1. DC2399 Temperature Measurement Demonstration Board
DEMO MANUAL DC2420
DC2399 and DC2210
The DC2399 is a member of the QuikEval™ family of dem-
onstration boards. It is designed to allow easy evaluation
of the LTC2984 and may be connected to any one of the
sensor daughter boards.
These daughter boards allow evaluation of the various
LTC2984 sensor types (see Figure 1).
For the serial digital interface, the DC2399 may be con-
nected to the DC2026 Linduino™ One.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2420
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
QuikEval and Linduino are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
DIRECT CONNECTION
TO DAUGHTER BOARD
LTC2984
dc2420f
1

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Summary of Contents for Linear Technology DC2420

  • Page 1 • Universal Temperature Measurement Board – DC2211 http://www.linear.com/demo/DC2420 • Thermocouple Board – DC2212 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and • Dedicated RTD Board – DC2213 QuikEval and Linduino are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
  • Page 2: Quick Start Procedure

    DEMO MANUAL DC2420 Quick start proceDure Connect one of the five sensor daughter boards (DC2210, The demo software helps program and run the LTC2984. DC2211, DC2212, DC2213 or DC2214) to the DC2399 It can configure the LTC2984, check and save the con- demo board.
  • Page 3 HarDware setup DC2210 ExpEriMEnTEr BoarD and a 24-position terminal block. The user may connect (inCLuDED in DC2420 KiT) any of the supported sensors and sense resistors to any of the LTC2984 inputs in this area. Figure 4 shows the The DC2210 experimenter board (see Figure 3) brings all connection schematic of the DC2210 Experimenter board.
  • Page 4: Hardware Setup

    DEMO MANUAL DC2420 HarDware setup Figure 4. DC2210 Experimenter Board Schematic dc2420f...
  • Page 5 DEMO MANUAL DC2420 HarDware setup DC2211 univErSaL TEMpEraTurE MEaSurEMEnT BoarD The universal temperature measurement board (see Figure 5) allows the user to connect any of the LTC2984 sup- ported sensors to the DC2399 demo board. UNIVERSAL INPUT TO DC2399 4X THERMOCOUPLES...
  • Page 6 DEMO MANUAL DC2420 HarDware setup The universal temperature measurement board has a The external interface on the universal temperature mea- built-in sense resistor for RTD applications as well as a surement board is an 8-position screw-terminal block cold junction sensor diode for thermocouple applications with the flowing pinout.
  • Page 7 DEMO MANUAL DC2420 HarDware setup univErSaL TEMpEraTurE MEaSurEMEnT • A 4-wire RTD connected to positions A-D using the DaughTEr BoarD ExaMpLES on-board sense resistor as the ratiometric reference (see Figure 7b for the schematic and Figure 8b for the • Four thermocouples connected to positions A-D with corresponding software configuration).
  • Page 8 DEMO MANUAL DC2420 HarDware setup Figure 8a. DC2211 Four Thermocouple Software Configuration dc2420f...
  • Page 9 DEMO MANUAL DC2420 HarDware setup Figure 8b. DC2211 4-Wire rTD Software Configuration dc2420f...
  • Page 10 DEMO MANUAL DC2420 HarDware setup DC2212 ThErMoCoupLE DaughTEr BoarD To demonstrate the flexibility of the LTC2984, the thermo- couple board includes cold junction diodes (Q1 and Q2) The thermocouple board (see Figure 9) demonstrates the embedded in each thermocouple socket. Alternatively, a...
  • Page 11 DEMO MANUAL DC2420 HarDware setup Figure 10. DC2212 Thermocouple Board Schematic dc2420f...
  • Page 12 DEMO MANUAL DC2420 HarDware setup noTE: protection resistors not shown in configuration schematic Figure 11. DC2212 Software Configuration dc2420f...
  • Page 13 DEMO MANUAL DC2420 HarDware setup DC2213 DEDiCaTED rTD BoarD measured value of this sense resistor is stored in an on- board EEPROM which the LTC2984 demo software can The DC2213 dedicated RTD board (see Figure 12) dem- read and use to configure the sense resistor value.
  • Page 14 DEMO MANUAL DC2420 HarDware setup To see the effects of parasitic thermocouples on non-rotated to demonstrate the range of the various LTC2984 RTD measurement modes, first measure the on-board 0°C sensor modes as well as demonstrate the fault detection PT100 simulator in a non-rotated configuration and see capabilities of the LTC2984.
  • Page 15 DEMO MANUAL DC2420 HarDware setup noTE: protection resistors not shown in configuration schematic Figure 14. DC2213 Software Configuration dc2420f...
  • Page 16 DEMO MANUAL DC2420 HarDware setup DC2214 DEDiCaTED ThErMiSTor BoarD configuration and see the measurement error as the thermocouple’s temperature changes. To see the benefit The DC2214 dedicated thermistor board includes several of the rotated measurement mode, switch to the rotation/...
  • Page 17 DEMO MANUAL DC2420 HarDware setup JUMPER PARASITIC BYPASS/ENABLE THERMOCOUPLE PARASITIC THERMOCOUPLE TO DC2399 DEMONSTRATION BOARD THERMISTOR Figure 15. DC2214 Thermistor Daughter Board dc2420f...
  • Page 18 DEMO MANUAL DC2420 HarDware setup Figure 16. DC2214 Dedicated Thermistor Board Schematic dc2420f...
  • Page 19 DEMO MANUAL DC2420 HarDware setup Figure 17. DC2214 Software Configuration dc2420f...
  • Page 20: Parts List

    DEMO MANUAL DC2420 parts List iTEM rEFErEnCE parT DESCripTion ManuFaCTurEr/parT nuMBEr DC2399 required Circuit Components C1-C21 CAP., NP0, 100pF 100V, 5%, 0603 MURATA, GRM1885C2A101JA01D C22, C24, C25, C30, CAP., X7R, 10µF 10V, 10%, 0805 MURATA, GRM21BR71A106KE51L C31, C33, C34 C23, C26, C27, C28, CAP., X7R, 0.1µF 25V, 10%, 0603...
  • Page 21: Schematic Diagram

    Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 22 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following aS iS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for EnginEEring DEvELopMEnT or EvaLuaTion purpoSES onLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.
  • Page 23 X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for category: Temperature Sensor Development Tools Click to view products by manufacturer: Analog Devices Other Similar products are found below : EVAL-ADT7516EBZ EVAL-ADT75EBZ T20321SS2B T2016P2CRRXC4S2 MAX1455EVKIT-NS DC2507A DS18B20EVKIT# MAX6654EVKIT EV-TEMPSENSE-ARDZ MAX1617AEVKIT BB-WSK-REF-2 MCP9800DM-TS1 TMPSNSRD-RTD2 MIKROE-2273 MIKROE-2501 MIKROE-2539 MIKROE-2554 DPP201Z000 DPP901Z000 1899 EV-BUNCH-WSN-2Z DPP904R000 KIT0021 SEN0206 SEN0227 MIKROE-2769 3251 SEN-13314 3263 SEN0137 LM20XEVM 3328 TMP708EVM BOOSTXL-TMP107 DC1785B MHUM-01...

This manual is also suitable for:

Dc2399Dc2210Ltc2984