EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 5
Title "8-Channel Thermocouple Datalogger"
Date "2017-02-11"
Rev "1.1"
Comp "JP Enterprises"
Comment1 "Based on an original AD595 design"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
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$Comp
L ThermocoupleLogger-rescue:TC_Connector- U5
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U6
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U7
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U8
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U9
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F 6 "-" H 6250 2350 60  0001 C CNN "Vendor"
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U10
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F 6 "-" H 7350 2350 60  0001 C CNN "Vendor"
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U11
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F 6 "-" H 8450 2350 60  0001 C CNN "Vendor"
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$EndComp
$Comp
L ThermocoupleLogger-rescue:TC_Connector- U12
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$EndComp
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L ThermocoupleLogger-rescue:L_Small- L1
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L3
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L5
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L8
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L10
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L12
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L14
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L16
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L2
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L4
U 1 1 589CB28B
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F 3 "" H 2950 2900 50  0000 C CNN
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	1    0    0    -1  
$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L6
U 1 1 589CB2E6
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F 3 "" H 4050 2900 50  0000 C CNN
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	1    0    0    -1  
$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L9
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F 3 "" H 5150 2900 50  0000 C CNN
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L11
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L13
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L15
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F 3 "" H 8450 2900 50  0000 C CNN
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$EndComp
$Comp
L ThermocoupleLogger-rescue:L_Small- L17
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$EndComp
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L ThermocoupleLogger-rescue:C_Small- C3
U 1 1 589D5633
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F 3 "" H 2250 2350 50  0000 C CNN
	1    2250 2350
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$EndComp
$Comp
L ThermocoupleLogger-rescue:C_Small- C4
U 1 1 589D5A27
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$EndComp
$Comp
L ThermocoupleLogger-rescue:C_Small- C5
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$EndComp
$Comp
L ThermocoupleLogger-rescue:C_Small- C6
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$EndComp
$Comp
L ThermocoupleLogger-rescue:C_Small- C7
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$EndComp
$Comp
L ThermocoupleLogger-rescue:ADG407- U1
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$EndComp
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$Comp
L ThermocoupleLogger-rescue:C_Small- C8
U 1 1 589D9FEC
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F 3 "" H 7700 2350 50  0000 C CNN
	1    7700 2350
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$EndComp
$Comp
L ThermocoupleLogger-rescue:C_Small- C9
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F 3 "" H 8800 2350 50  0000 C CNN
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$EndComp
$Comp
L ThermocoupleLogger-rescue:C_Small- C10
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$EndComp
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$Comp
L ThermocoupleLogger-rescue:GND- #PWR06
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$EndComp
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SLCT2
Text Notes 4650 4350 0    60   ~ 0
1. Design equires that thermocouple connector and thermocouple amplifier are in \nclose proximity so that the cold junction is maintained at a similar temperature to the \nconnectors. Alternatively, a reference thermocouple and wiring is provided at the \nisothermal point.
Text GLabel 3550 6100 2    60   Input ~ 0
5V0
Text GLabel 3550 6300 2    60   Output ~ 0
DB_MUX
Text GLabel 3550 6200 2    60   Output ~ 0
DA_MUX
Text Notes 4650 4550 0    60   ~ 0
Alternative multiplexers that migh tbe suitable include the MAX4051A (Single ended switching) or a pair of MAX4052s\n
$EndSCHEMATC