DC2399 Datasheet, PDF (6/22 Pages) Linear Dimensions Semiconductor – the starter kit for demonstrating the performance and ease of use of the LTC®2984

DEMO MANUAL DC2420
Hardware Setup
The universal temperature measurement board has a
built-in sense resistor for RTD applications as well as a
cold junction sensor diode for thermocouple applications
(see Figure 6 for the DC2211 schematic diagram). The
sense resistor is a 2kΩ ±0.1% 10ppm/°C sense resistor
on channels 1 and 2 which may be used with any of the
supported RTD sensor types. The precise value of this
sense resistor is stored in an on-board EEPROM. The
LTC2984 demo software can read this EEPROM and use
to configure the sense resistor value in the LTC2984’s
configuration memory.
The external interface on the universal temperature mea-
surement board is an 8-position screw-terminal block
with the flowing pinout.
Table 1. DC2211 Terminal Connector Pinout
Position A
LTC2984 CH2 as well as the low side of the on-board 2k
sense resistor
Position B LTC2984 CH3
Position C LTC2984 CH4
Position D LTC2984 CH5
Position E Common/Ground Connection
Position F Common/Ground Connection
Position G Common/Ground Connection
Position H Common/Ground Connection
J1
R6
J2
R5, 100Ω
R4, 100Ω
R3, 100Ω
R2, 100Ω
R1, 100Ω
Q₁
Figure 6. DC2211 Universal Temperature Measurement Board Schematic
dc2420f
6