EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 2 7 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Wire Wire Line 9050 4450 9300 4450 Text HLabel 9300 4350 2 50 Input ~ 0 ADC_DATA8 Text HLabel 9300 4250 2 50 Input ~ 0 ADC_DATA7 Text HLabel 9300 4150 2 50 Input ~ 0 ADC_DATA6 Text HLabel 9300 4050 2 50 Input ~ 0 ADC_DATA5 Text HLabel 9300 3950 2 50 Input ~ 0 ADC_DATA4 Text HLabel 9300 3850 2 50 Input ~ 0 ADC_DATA3 Text HLabel 9300 3750 2 50 Input ~ 0 ADC_DATA2 Text HLabel 9300 3650 2 50 Input ~ 0 ADC_DATA1 Wire Wire Line 4450 4150 4350 4150 $Comp L power:+5VA #PWR0108 U 1 1 60CD6EC0 P 4450 4150 F 0 "#PWR0108" H 4450 4000 50 0001 C CNN F 1 "+5VA" V 4465 4278 50 0000 L CNN F 2 "" H 4450 4150 50 0001 C CNN F 3 "" H 4450 4150 50 0001 C CNN 1 4450 4150 0 1 1 0 $EndComp Connection ~ 5900 3050 Wire Wire Line 5900 2900 5900 3050 $Comp L power:GND #PWR057 U 1 1 60CCC812 P 5900 2900 F 0 "#PWR057" H 5900 2650 50 0001 C CNN F 1 "GND" H 5905 2727 50 0000 C CNN F 2 "" H 5900 2900 50 0001 C CNN F 3 "" H 5900 2900 50 0001 C CNN 1 5900 2900 -1 0 0 1 $EndComp Wire Wire Line 6150 3050 6150 3100 Wire Wire Line 5900 3050 6150 3050 Wire Wire Line 5900 3100 5900 3050 Wire Wire Line 6150 3550 6250 3550 Connection ~ 6150 3550 Wire Wire Line 6150 3400 6150 3550 Wire Wire Line 5900 3650 6250 3650 Connection ~ 5900 3650 Wire Wire Line 5900 3400 5900 3650 Wire Wire Line 6050 3550 6150 3550 Wire Wire Line 5850 3650 5900 3650 Wire Wire Line 5650 3750 6250 3750 $Comp L Device:C C41 U 1 1 60CB7A55 P 6150 3250 F 0 "C41" H 6265 3296 50 0000 L CNN F 1 "0.1uF" H 6265 3205 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 6188 3100 50 0001 C CNN F 3 "~" H 6150 3250 50 0001 C CNN 1 6150 3250 1 0 0 -1 $EndComp $Comp L Device:C C40 U 1 1 60CB5566 P 5900 3250 F 0 "C40" H 6015 3296 50 0000 L CNN F 1 "10uF" H 6015 3205 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 5938 3100 50 0001 C CNN F 3 "~" H 5900 3250 50 0001 C CNN 1 5900 3250 1 0 0 -1 $EndComp Text HLabel 9300 4450 2 50 Input ~ 0 ADC_CLK Text HLabel 2800 3750 0 50 Input ~ 0 ADC_IN Wire Wire Line 5650 4350 6250 4350 Connection ~ 5650 4350 Wire Wire Line 5650 4000 5650 4350 Wire Wire Line 5850 4000 5650 4000 Wire Wire Line 6250 4000 6250 3950 Connection ~ 6250 4000 Wire Wire Line 6150 4000 6250 4000 Wire Wire Line 6250 4050 6250 4000 $Comp L Device:C C39 U 1 1 614EF02F P 6000 4000 F 0 "C39" V 6252 4000 50 0000 C CNN F 1 "0.1uF" V 6161 4000 50 0000 C CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 6038 3850 50 0001 C CNN F 3 "~" H 6000 4000 50 0001 C CNN 1 6000 4000 0 -1 -1 0 $EndComp Wire Wire Line 3900 5350 3900 5450 Wire Wire Line 3900 4950 3900 5050 Wire Wire Line 4800 3850 5000 3850 Connection ~ 5750 4250 Wire Wire Line 3750 4250 5750 4250 Wire Wire Line 3750 3750 3550 3750 Connection ~ 3750 3750 Wire Wire Line 3750 4250 3750 3750 Wire Wire Line 3250 3750 2800 3750 Wire Wire Line 4050 3750 3750 3750 Wire Wire Line 4250 3400 4250 3550 $Comp L power:+5VA #PWR0107 U 1 1 614E5495 P 4250 3400 F 0 "#PWR0107" H 4250 3250 50 0001 C CNN F 1 "+5VA" H 4265 3573 50 0000 C CNN F 2 "" H 4250 3400 50 0001 C CNN F 3 "" H 4250 3400 50 0001 C CNN 1 4250 3400 1 0 0 -1 $EndComp $Comp L Device:C C36 U 1 1 614DE0CC P 3400 3750 F 0 "C36" V 3148 3750 50 0000 C CNN F 1 "0.1uF" V 3239 3750 50 0000 C CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 3438 3600 50 0001 C CNN F 3 "~" H 3400 3750 50 0001 C CNN 1 3400 3750 0 1 1 0 $EndComp $Comp L power:GND #PWR0106 U 1 1 614DCD4E P 3900 5450 F 0 "#PWR0106" H 3900 5200 50 0001 C CNN F 1 "GND" H 3905 5277 50 0000 C CNN F 2 "" H 3900 5450 50 0001 C CNN F 3 "" H 3900 5450 50 0001 C CNN 1 3900 5450 1 0 0 -1 $EndComp $Comp L Device:C C37 U 1 1 614DC5D4 P 3900 5200 F 0 "C37" H 4015 5246 50 0000 L CNN F 1 "0.1uF" H 4015 5155 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 3938 5050 50 0001 C CNN F 3 "~" H 3900 5200 50 0001 C CNN 1 3900 5200 1 0 0 -1 $EndComp Connection ~ 3900 4550 Wire Wire Line 3900 4650 3900 4550 $Comp L Device:R R32 U 1 1 614DAD32 P 3900 4800 F 0 "R32" H 3970 4846 50 0000 L CNN F 1 "402" H 3970 4755 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 3830 4800 50 0001 C CNN F 3 "~" H 3900 4800 50 0001 C CNN 1 3900 4800 1 0 0 -1 $EndComp Wire Wire Line 3900 3950 4050 3950 Wire Wire Line 3900 4550 3900 3950 Wire Wire Line 4100 4550 3900 4550 Wire Wire Line 4800 3850 4650 3850 Connection ~ 4800 3850 Wire Wire Line 4800 4550 4800 3850 Wire Wire Line 4400 4550 4800 4550 Wire Wire Line 5100 4350 5450 4350 Connection ~ 5100 4350 Wire Wire Line 5100 4450 5100 4350 Wire Wire Line 4250 4350 5100 4350 Wire Wire Line 4250 4150 4250 4350 $Comp L Device:R R33 U 1 1 614D4C4E P 4250 4550 F 0 "R33" V 4043 4550 50 0000 C CNN F 1 "402" V 4134 4550 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 4180 4550 50 0001 C CNN F 3 "~" H 4250 4550 50 0001 C CNN 1 4250 4550 0 1 1 0 $EndComp Wire Wire Line 5450 3850 6250 3850 Connection ~ 5450 3850 Wire Wire Line 5300 3850 5450 3850 Wire Wire Line 5450 4350 5650 4350 Connection ~ 5450 4350 Wire Wire Line 5450 4150 5450 4350 $Comp L Device:C C38 U 1 1 614D04E3 P 5450 4000 F 0 "C38" H 5565 4046 50 0000 L CNN F 1 "47pF" H 5565 3955 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 5488 3850 50 0001 C CNN F 3 "~" H 5450 4000 50 0001 C CNN 1 5450 4000 1 0 0 -1 $EndComp $Comp L Device:R R34 U 1 1 614CFF0D P 5150 3850 F 0 "R34" V 4943 3850 50 0000 C CNN F 1 "39" V 5034 3850 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 5080 3850 50 0001 C CNN F 3 "~" H 5150 3850 50 0001 C CNN 1 5150 3850 0 1 1 0 $EndComp Wire Wire Line 5750 4250 5850 4250 Wire Wire Line 5750 4150 5750 4250 Wire Wire Line 5850 4150 5750 4150 Wire Wire Line 6150 4250 6250 4250 Wire Wire Line 6250 4150 6150 4150 $Comp L Device:R R36 U 1 1 614C7B9C P 6000 4250 F 0 "R36" V 6207 4250 50 0000 C CNN F 1 "1k" V 6116 4250 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 5930 4250 50 0001 C CNN F 3 "~" H 6000 4250 50 0001 C CNN 1 6000 4250 0 -1 -1 0 $EndComp $Comp L Device:R R35 U 1 1 614C66FD P 6000 4150 F 0 "R35" V 5793 4150 50 0000 C CNN F 1 "1k" V 5884 4150 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 5930 4150 50 0001 C CNN F 3 "~" H 6000 4150 50 0001 C CNN 1 6000 4150 0 1 1 0 $EndComp Wire Wire Line 5950 4450 6250 4450 $Comp L power:+5VA #PWR0105 U 1 1 614B6AAE P 5950 4450 F 0 "#PWR0105" H 5950 4300 50 0001 C CNN F 1 "+5VA" V 5965 4578 50 0000 L CNN F 2 "" H 5950 4450 50 0001 C CNN F 3 "" H 5950 4450 50 0001 C CNN 1 5950 4450 0 -1 1 0 $EndComp $Comp L Amplifier_Operational:OPA847xD U13 U 1 1 614B1E6E P 4350 3850 F 0 "U13" H 4694 3896 50 0000 L CNN F 1 "OPA681" H 4694 3805 50 0000 L CNN F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 4350 3850 50 0001 C CNN F 3 "http://www.ti.com/lit/ds/symlink/opa847.pdf" H 4350 4050 50 0001 C CNN 1 4350 3850 1 0 0 -1 $EndComp $Comp L power:GND #PWR0104 U 1 1 614ABABB P 5100 4450 F 0 "#PWR0104" H 5100 4200 50 0001 C CNN F 1 "GND" V 5105 4322 50 0000 R CNN F 2 "" H 5100 4450 50 0001 C CNN F 3 "" H 5100 4450 50 0001 C CNN 1 5100 4450 -1 0 0 -1 $EndComp $Comp L power:+5VA #PWR0103 U 1 1 6148C30D P 5850 3650 F 0 "#PWR0103" H 5850 3500 50 0001 C CNN F 1 "+5VA" H 5865 3823 50 0000 C CNN F 2 "" H 5850 3650 50 0001 C CNN F 3 "" H 5850 3650 50 0001 C CNN 1 5850 3650 0 -1 1 0 $EndComp Wire Wire Line 9100 3550 9050 3550 Wire Wire Line 9100 3450 9100 3550 $Comp L power:GND #PWR0102 U 1 1 614887E8 P 5650 3750 F 0 "#PWR0102" H 5650 3500 50 0001 C CNN F 1 "GND" H 5655 3577 50 0000 C CNN F 2 "" H 5650 3750 50 0001 C CNN F 3 "" H 5650 3750 50 0001 C CNN 1 5650 3750 0 1 -1 0 $EndComp $Comp L power:GND #PWR0101 U 1 1 61488143 P 9100 3450 F 0 "#PWR0101" H 9100 3200 50 0001 C CNN F 1 "GND" H 9105 3277 50 0000 C CNN F 2 "" H 9100 3450 50 0001 C CNN F 3 "" H 9100 3450 50 0001 C CNN 1 9100 3450 1 0 0 1 $EndComp Wire Wire Line 9300 4350 9050 4350 Wire Wire Line 9300 4250 9050 4250 Wire Wire Line 9300 4150 9050 4150 Wire Wire Line 9300 4050 9050 4050 Wire Wire Line 9300 3950 9050 3950 Wire Wire Line 9300 3850 9050 3850 Wire Wire Line 9300 3750 9050 3750 Wire Wire Line 9050 3650 9300 3650 $Comp L ADS831:ADS831E_2K5 U7 U 1 1 60FB23DE P 9050 3550 F 0 "U7" H 10450 3937 60 0000 C CNN F 1 "ADS831E_2K5" H 10450 3831 60 0000 C CNN F 2 "ADS831:ADS831E&slash_2K5" H 10450 3790 60 0001 C CNN F 3 "" H 9050 3550 60 0000 C CNN 1 9050 3550 -1 0 0 -1 $EndComp $Comp L Device:L L? U 1 1 610853E4 P 4400 2900 AR Path="/60C2FE2A/610853E4" Ref="L?" Part="1" AR Path="/60FB17F2/610853E4" Ref="L3" Part="1" F 0 "L3" V 4590 2900 50 0000 C CNN F 1 "10uH" V 4499 2900 50 0000 C CNN F 2 "Inductor_SMD:L_0603_1608Metric" H 4400 2900 50 0001 C CNN F 3 "~" H 4400 2900 50 0001 C CNN 1 4400 2900 0 -1 -1 0 $EndComp $Comp L Device:C C? U 1 1 610853EA P 4750 3100 AR Path="/60C2FE2A/610853EA" Ref="C?" Part="1" AR Path="/60FB17F2/610853EA" Ref="C13" Part="1" F 0 "C13" H 4865 3146 50 0000 L CNN F 1 "10uF" H 4865 3055 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 4788 2950 50 0001 C CNN F 3 "~" H 4750 3100 50 0001 C CNN 1 4750 3100 1 0 0 -1 $EndComp Wire Wire Line 4250 2900 4050 2900 Wire Wire Line 4550 2900 4750 2900 Wire Wire Line 4750 2950 4750 2900 $Comp L power:+3V3 #PWR025 U 1 1 6109D4DF P 4050 2700 F 0 "#PWR025" H 4050 2550 50 0001 C CNN F 1 "+3V3" H 4065 2873 50 0000 C CNN F 2 "" H 4050 2700 50 0001 C CNN F 3 "" H 4050 2700 50 0001 C CNN 1 4050 2700 1 0 0 -1 $EndComp Wire Wire Line 4050 2700 4050 2900 $Comp L power:GND #PWR058 U 1 1 6109F3FD P 4750 3450 F 0 "#PWR058" H 4750 3200 50 0001 C CNN F 1 "GND" H 4755 3277 50 0000 C CNN F 2 "" H 4750 3450 50 0001 C CNN F 3 "" H 4750 3450 50 0001 C CNN 1 4750 3450 1 0 0 -1 $EndComp Wire Wire Line 4750 3250 4750 3450 Text Label 4900 2900 0 50 ~ 0 +3V3A Wire Wire Line 4900 2900 4750 2900 Connection ~ 4750 2900 Text Label 6050 3550 2 50 ~ 0 +3V3A $EndSCHEMATC