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Principles of Operation
DT9871 Block Diagram
Figure 25
shows the block diagram of the DT9871 instrument.
1 of 8
64 kB
+100 nA Break
Digital Input
Isolated
SRAM
Detection
Isolators
DC-DC
1 of 8
Digital Output
24-Bit
Isolators
A/D
Control
FPGA
CJC Per
Point
1 of up to 48 Channels
Power LED
USB LED
USB 2.0
Processor
Limit LED
Calibration
ROM
Open TC LED
USB 2.0
ID ROM
Figure 25: Block Diagram of the DT9871 TEMPpoint Instrument
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