5 4 3 2 1 REVISION HISTORY ECO AIN0+ C3 0.1uF BNC 2 R4 49.9 1206 5 R2 33 4 2 R3 33 4 U2 R5 1k APPROVED DATE GUY H. 10-26-15 PRODUCTION C2 0.1uF CLKIN U3 NC7SZ04P5X NC7SZ04P5X 3 D J1 CLK 100MHz MAX 2.5VPP R1 1k DESCRIPTION 1 VCCIO C1 0.1uF 3 AIN0- VCCIO 5 VCCIO REV D VCCIO VCCIO C6 0.1uF C7 0.1uF C AIN3+ AIN4- GND GND 3 C13 1uF 4 24 37 36 35 34 33 32 29 28 27 26 25 38 39 23 22 VCCIO EXT 5 JP1 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 1k D C16 0.1uF 4 2 R9 0 CSB U5 3 R8 33 4 INT VOUT_S GND NL17SZ74 2 OE C12 2.2uF VIN 7 U4 GND REF SHDN VOUT_F Q Q 5 GND 1 R6 33 8 5 7 6 1 2 3 PR 3 8 21 19 REFBUF REFIN 42 43 40 31 CNV SDI SDO7 SDO-/SDO6 SDO+/SDO5 SCKO-/SDO4 SCKO+/SCKO SCKI-/SCKI SCKI+/SDO3 SDI-/SDO2 SDI+/SDO1 SDO0 BUSY CSL LVDS/CMOSL PD 49 46 44 41 20 18 15 30 16 17 45 AIN4+ AIN0AIN0+ AIN1AIN1+ AIN2AIN2+ AIN3AIN3+ AIN4AIN4+ AIN5AIN5+ AIN6AIN6+ AIN7AIN7+ OVDD 13 14 11 12 9 10 7 8 5 6 3 4 1 2 47 48 C15 1uF 50V EP GND GND GND GND GND GND OGND GND GND GND AIN3- C9 1uF 50V VDD VDD VDDL U1 LTC2345 C14 1uF 50V C11 47uF 10V 1210 X7R VCCIO CLR 1 VDD AIN2+ R7 OPT REFBUF VCC VCC A C10 10uF AIN2- LTC6655BHMS8-5 5V GND VCC REFBUF E1 VDDL 6 NC7SZ04P5X WRIN 3 U6 2 B AIN1+ 4 U7 CP 5 1 2 AIN1- NC7SZ66P5X 33 33 33 33 33 33 33 33 33 33 33 CNV SDI SDO7 SDO- /SDO6 SDO+ /SDO5 SCKO- /SDO4 SCKO+ /SCKO SCKI- /SCKI SCKI+/SDO3 SDI- /SDO2 SDI+ /SDO1 SDO0 BUSY CNV SDI SDO7 SDO-/SDO6 SDO+/SDO5 SCKO-/SDO4 SCKO+/SCKO SCKI-/SCKI SCKI+/SDO3 SDI-/SDO2 SDI+/SDO1 SDO0 BUSY LVDS/ CMOSL LVDS/CMOSL R22 1k SDA SCL AIN5- U8 R23 AIN5+ VCCIO AIN6- C17 0.1uF 0402 1 2 3 4 5 6 7 8 9 10 INTL SCL NC SDA VDD A0 A1 NC A2 P0 20 19 18 17 16 15 14 13 12 11 P7 P6 NC P5 P4 VSS P3 NC P2 P1 OPT WRIN 0402 X 8PLCS PCF8574TS B C WRIN2 R24 R25 33 33 WRIN SDI_IN WRIN SDI_IN R26 R27 33 33 SCK_IN CNV_IN SCK_IN CNV_IN R28 33 LVDS /CMOSLIN LVDS/CMOSLIN R29 R30 33 33 WRIN2 AUX1 WRIN2 AUX1 R31 33 AUX2 AIN6+ B AUX0 SCK_IN2 VCCIO C19 0.1uF WRIN2 2 R33 33 0402 1 LVDS/CMOSLIN OE 4 U9 SDI 2 B NC7SZ66P5X GND A 1 SDI_IN OE 4 U10 SCKI-/SCKI VCC R32 0 2 B NC7SZ66P5X VCC A 1 SCK_IN OE 4 U11 CNV 2 B NC7SZ66P5X GND GND A 1 CNV_IN OE 4 U12 NC7SZ66P5X WRIN2L WRIN2L 3 4 VCC A 3 NC7SZ04P5X GND 0402 3 U13 VCC LVDS/CMOSL 2 B 3 5 VCCIO C22 0.1uF 0402 VCCIO C21 0.1uF 5 5 0402 5 0402 AIN7+ VCCIO C20 0.1uF 5 VCCIO C18 0.1uF 3 AIN7- A CUSTOMER NOTICE NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0603. * ASSY A B U1 LTC2345-18 LTC2345-16 SUFFIX 45-18 45-16 -Bit 18 16 Ksps 200 200 LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. R61 0 OPT 4 TECHNOLOGY KIM T. GUY H. 8-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC 3 2 B SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 APPROVALS DATE: IC NO. LTC2345IUK FAMILY DEMO CIRCUIT 2326A Monday, October 26, 2015 1 REV. 1 SHEET 1 OF 4 A 5 4 3 2 1 U14 U16 LT1763CS8 +9V/+10V GND 8 E6 C24 47uF 25V 7343 TANT C30 1uF 25V IN OUT SEN 5 SHDN -9V/-10V VCC E3 GND GND GND +9V / +10V LT1964ES5-SD BYP E7 1 C31 0.01uF 2 R38 5.62k C32 10uF 25V 4 D VCC -9V / -10V 1 E5 2 C27 10uF 25V C28 1uF 25V 3 GND OUT E2 5 R34 2k IN SHDN ADJ 4 C23 VEE 10uF 25V VEE R36 1k D 3 6 7 R39 1k U17 LT1763CS8 8 IN OUT 5 SHDN GND GND GND SEN BYP E8 C34 0.01uF 2 R40 1.07k 4 R41 1k 3 6 7 C33 1uF 25V VCCIO 1 1 2 3 R42 1.58k VCCIO +2.5V C35 10uF 25V VCCIO +3.3V JP2 U18 LT1763CS8 8 OUT SEN 5 SHDN BYP E9 C37 0.01uF 2 R43 3.09k C38 10uF 25V 4 VDD C R44 1k 3 6 7 C IN GND GND GND C36 1uF 25V VDD 1 U19 LT3021ES8-1.2 AGND SHDN GND 5 OUT 6 C39 3.3uF 25V IN +1.2V SEN E10 2 VCCINT 3 C40 10uF 25V +1.2V 4 8 U20 LT1763CS8-2.5 8 OUT SEN SHDN BYP E11 C42 0.01uF 2 C43 10uF 25V 4 +2.5V B 3 6 7 5 GND GND GND C41 1uF 25V B IN +2.5V 1 U21 LT1763CS8 8 OUT 5 SHDN GND GND GND SEN BYP E12 C45 0.01uF 2 R45 1.43k 4 C46 10uF 25V +3V NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0603. R46 1k 3 6 7 C44 1uF 25V IN +3V 1 CUSTOMER NOTICE A APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY KIM T. GUY H. TITLE: SCHEMATIC 8-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 4 3 2 B SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: IC NO. LTC2345IUK FAMILY DEMO CIRCUIT 2326A Tuesday, June 23, 2015 REV. 1 SHEET 2 1 OF 4 A 5 4 U22B U22C IO1 IO2 IO3 IO4 IO5_VREF1 IO6_DIFFL4P IO7_DIFFL4N CLK0 CLK1 BANK2 1 2 3 4 7 10 11 22 23 AUX0 AUX1 WRIN2 LVDS/CMOSLIN 2 U22D BANK1 D 3 CLK2 CLK3 IO1 IO2 IO3_VREF2 IO4_RUP1 IO5_RDN1 IO6 R52 33 CLKIN BUSY SDI R49 33 SDO7 IO1_DIFFIOB1P IO2_DIFFIOB1N IO3 IO4 IO5 IO6_VREF3 IO7_DIFFIOB9P IO8_DIFFIOB9N IO9 IO10_DIFFIOB11P IO11_DIFFIOB11N VCCIO 3 2 1 I/O LVDS P1 U22E SDO-/SDO6 BANK3 24 25 28 30 31 32 33 34 1 R47 0 BANK4 R50 OPT 38 39 42 43 44 46 49 50 51 52 53 54 55 58 59 60 64 65 66 67 68 69 70 71 72 IO1_DIFFIOB12P IO2_DIFFIOB12N IO3 IO4_DIFFIOB16P IO5_DIFFIOB16N IO6 IO7_VREF4 IO8_RUP2 IO9_RDN2 IO10 IO11 IO12_DIFFIOB21P IO13_DIFFIOB21N IO14 SDO+/SDO5 SCKO-/SDO4 R54 OPT SCKO+/SCKO CMOS SCKI-/SCKI R48 0 R53 OPT VCCIO U22F IO1 IO2 IO3 IO4_RUP3 IO4_RDN3 IO5 IO6_VREF5 IO7 IO8_DIFFIOR8N IO9_DIFFIOR8P CLK7_DIFFCLK3N CLK6_DIFFCLK3P C R61 [2] CYCLONE3-EP3C5E144 U22G U22H U22I R60 10k BANK5 73 74 75 76 77 79 80 83 84 85 88 89 R59 10k CYCLONE3-EP3C5E144 BANK6 ID R65 R67 33 33 CLK5_DIFFCLK2N CLK4_DIFFCLK2P IO1 IO2 IO3_VREF6 IO4 SDO0 CSB LVDS/CMOSL CNV_IN SCK_IN SDI_IN WRIN BANK7 90 91 100 104 105 106 D9 D8 SDI-/SDO2 R58 0 R56 OPT R57 OPT D7 D6 D5 D4 D3 D2 CNVCLK R63 R64 R66 R68 33 33 33 33 IO1 IO2 IO3 IO4 IO5_RUP4 IO6_RDN4 IO7_VREF7 IO8_DIFFIOT16N IO9_DIFFIOT16P IO10 IO11 IO12_DIFFIOT12N IO13_DIFFIOT12P SS0 SS1 SS2 A0 CNVCLK SYNC D1 D0 BANK8 110 111 112 113 114 115 119 120 121 124 125 126 127 R62 R70 33 33 A1 A2 R74 R76 R78 R80 R82 R84 R86 R88 R90 33 33 33 33 33 33 33 33 33 IDOUT D0 D1 SYNC CNVCLK D2 D3 D4 D5 128 129 132 133 135 136 137 138 141 142 143 144 IO1_DIFFIOT11N IO2_DIFFIOT11P IO3_DIFFIOT10N IO4_DIFFIOT10P IO5 IO6_VREF8 IO7 IO8 IO9 IO10 IO11_DIFFIOT01N IO12_DIFFIOT01P R69 R71 R72 R73 R75 R77 R79 R81 R83 R85 R87 R89 D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 33 33 33 33 33 33 33 33 33 33 33 33 IDOUT A2 A1 A0 SS2 SS1 SS0 +3V 2 4 6 8 10 VCCIO CONFIG VCCIO C58 0.1uF C59 0.1uF C60 0.1uF C61 0.1uF C62 0.1uF C63 0.1uF C64 0.1uF C65 0.1uF C66 0.1uF C68 0.1uF C69 0.1uF +2.5V C70 47uF 0805 CYCLONE3-EP3C5E144 C71 4.7uF 0603 C72 C73 C74 C75 0.01uF 0.1uF 1000pF 22nF C76 22nF C77 22nF C78 4.7nF + C87 C88 470uF 4.7uF 7343 0603 6 8 9 12 13 14 15 16 18 20 21 86 87 92 94 96 97 98 99 101 103 C83 C89 C84 0.01uF 0.01uF 0.1uF C90 0.1uF C85 0.1uF C91 0.1uF C92 0.1uF C86 2.2nF 8 VCC +3V 8 7 6 5 VCC VCC DCLK ASDI +3V C56 0.1uF R93 4.99k 0603 C57 0.1uF R94 4.99k 0603 SCL SDA WP A2 A1 A0 6 5 7 3 2 1 SCL SDA EEPROM 1 2 3 WP PROG B JP4 J4 HD2X7-079-MOLEX V+ 5V +2.5V CYCLONE3-EP3C5E144 R101 10k C93 4.7nF VCCIO R102 10k R103 10k +3V +3V +3V +3V R104 1k D1 BAT54WS C79 10pF JTAG 2 4 6 8 10 1 3 5 7 9 HD2X5-100 NOTES: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0402. TCK TDO TMS TDI D2 BAT54WS D3 BAT54WS C80 10pF CS SCK/SCL MOSI/SDA MISO EEVCC EESDA EESCL EEGND AUX D4 BAT54WS C81 10pF CUSTOMER NOTICE C82 10pF THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 2 1 2 6 4 7 5 DC590/DC2026 CNV SCK_IN2 SDI SDO0 10 9 11 12 14 APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY KIM T. GUY H. 8-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC B SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC SIZE 2. R61 IS O OHMS ON "A" ASSEMBLY TYPE AND OPTIONAL ON "B" ASSEMBLY TYPE. 4 NCS DATA VCC GND TDI TCK TMS TDO NCE J3 5 EPCS4SI8 +3V 1 2 3 4 +1.2V L1 BLM31PG391SN1L VCCD_PLL A C67 0.1uF IO1_DATA1 IO2_FLASH_NCE N_STATUS DCLK IO3_DATA0 NCONFIG TDI TCK TMS TDO NCE IO4_DEV_OE IO5_DEV_CLRN CONF_DONE MSEL0 MSEL1 MSEL2 IO6_INIT_DONE IO7_CRC_ERROR IO8_NCEO IO9_CLKUSR R91 4.99k 0603 24LC024-I /ST GND C55 0.1uF VCCIO 4 C54 0.1uF U23 C GND GND GND C53 0.1uF R95 10k R92 4.99k 0603 D 13 8 3 C52 0.1uF R100 10k 1 C51 0.1uF R99 10k 1 C50 0.1uF R98 10k 1 C49 0.1uF R97 10k 2 C48 0.1uF 5 29 45 61 78 102 116 134 17 26 40 47 56 62 81 93 117 122 130 139 35 107 37 109 R96 10k C47 0.1uF 0603 U24 1 B VCCINT VCCINT GND VCCINT GND VCCINT GNDA1 VCCINT GND VCCINT GND VCCINT GND VCCINT GND VCCIO1 GND VCCIO2 GND VCCIO3 GNDA2 VCCIO3 GND VCCIO4 GND VCCIO4 GND VCCIO5 GND VCCIO6 GND VCCIO7 VCCIO7 VCCIO8 VCCIO8 VCCA1 VCCA2 VCCD_PLL1 VCCD_PLL2 1 3 5 7 9 HD2X5-100 U22J 2 PWR 19 27 36 41 48 57 63 82 95 108 118 123 131 140 145 EDGE-CON-100 J2 +1.2V U22A FPGA PROGRAM ARRAY CYCLONE3-EP3C5E144 EEPROM CYCLONE3-EP3C5E144 2 CYCLONE3-EP3C5E144 2 CYCLONE3-EP3C5E144 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 D11 D10 R55 0 SDI+/SDO1 CYCLONE3-EP3C5E144 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 D13 D12 VCCIO CYCLONE3-EP3C5E144 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 D15 D14 R51 OPT SCKI+/SDO3 JP3 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 D17 D16 DATE: IC NO. LTC2345IUK FAMILY DEMO CIRCUIT 2326A Monday, October 26, 2015 REV. 1 SHEET 3 1 OF 4 A 3 2 1 VCC C96 0.1uF 3 AIN3 4 AIN4 5 AIN5 6 AIN6 7 AIN7 8 AIN2 R109 OPT AIN3 J6 BNC 3 2 1 VIN2 0V - 5V MAX JP14 COUPLING AC DC + 1 AIN6 R111 49.9 0603 AIN1 AIN7 JP6 HD1X2-100 R117 OPT VCM 5 C101 39pF 0805 6 VCM R118 OPT VCM U26B LT6237IDD 7 - C113 39pF 0805 AIN1+ C105 0.1uF 8 4 C128 39pF 0805 6 R145 0 LT6237IDD + 1 - EP R126 49.9 VCM AIN1- R130 1k 6 1 3 5 7 3 C29 10uF 4 HD2X4-100 R178 2.05k + VCM 1 - R136 0 EN C159 0.1uF VCM 2 JP8 HD1X2-100 1. ALL RESISTORS AND CAPACITORS ON THIS PAGE ARE 0402. APPROVALS LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES. VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED APP ENG. CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. TECHNOLOGY KIM T. GUY H. TITLE: SCHEMATIC 8-CHANNEL, SOFTSPAN, HIGH SPEED, SERIAL, SAR, ADC SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 B SCALE = NONE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only DATE: IC NO. LTC2345IUK FAMILY DEMO CIRCUIT 2326A Monday, October 26, 2015 8 6 VCM AIN2- LT6237IDD 7 - C130 0.1uF C126 OPT LT6237IDD 1 - EP R121 49.9 C110 1000pF JP12 HD1X2-100 1 R132 49.9 VCM AIN3- R131 1k C145 39pF 0805 C124 1000pF C125 OPT 1 8 5 6 R161 0 R162 499 0603 U31B LT6237IDD + 7 - AIN6+ C154 0.1uF C150 OPT LT6237IDD + 1 - EP B R173 49.9 AIN6- R172 1k U32B LT6237IDD + 7 - C148 1000pF R159 49.9 AIN7+ C146 0.1uF C142 OPT VEE A U32A R174 1k 3 2 LT6237IDD + - C147 1000pF EP 1 EP R164 49.9 AIN7- R163 1k C157 OPT 2 C155 1000pF EP OF 4 3 R167 49.9 VCC C143 0.1uF C144 39pF 0805 C106 OPT EP AIN5C140 1000pF C149 OPT R171 OPT R160 49.9 0603 AIN7 C109 0.1uF LT6237IDD - C R148 49.9 R147 1k U31A 2 R169 OPT AIN3+ U28A 2 AIN5+ VEE 3 C153 39pF 0805 EP + C131 1000pF EP + R165 1k R170 499 0603 C111 1000pF VEE 3 C114 39pF 0805 R168 0 R141 49.9 R140 1k U28B + R142 1k REV. SHEET 4 4 C108 39pF 0805 R127 0 VCM EP 6 C115 OPT 1 - 5 C152 39pF 0805 VCC C107 0.1uF 5 R128 499 0603 JP11 HD1X2-100 C122 0.1uF + R166 49.9 0603 AIN6 AIN2+ LT6237IDD 4 NOTES: UNLESS OTHERWISE SPECIFIED C123 1000pF C118 OPT R139 OPT R122 49.9 0603 AIN3 7 R135 49.9 EP U27A 2 R137 OPT CUSTOMER NOTICE 7 - R143 49.9 C141 OPT VEE 3 C121 39pF 0805 VEE LT6237IDD - R133 1k R138 499 0603 R176 0 A LT6237IDD 4 8 6 AIN4C132 1000pF VCC C151 0.1uF U27B + D R157 49.9 R156 1k U30B + 8 2 4 6 8 C120 39pF 0805 LT6236IS6 5 R177 453 EXT 2.5V 2.048V GND U33 2 B EP 4 JP7 HD1X2-100 5V 5 4 VCC C158 0.1uF JP15 R134 49.9 0603 AIN2 9 C160 1uF R175 2.49k - C117 OPT 9 EXTCM 1 U30A VCC C119 0.1uF E13 LT6237IDD VEE 3 C129 39pF 0805 C103 1000pF C134 OPT + R158 1k R146 499 0603 C138 0.1uF VCC C127 0.1uF 5 C99 OPT U26A 2 JP10 HD1X2-100 AIN4+ C133 OPT R155 OPT R144 49.9 0603 AIN5 EP VEE 3 C95 1000pF C139 1000pF EP U29A 2 R153 OPT R112 49.9 7 - R151 49.9 VEE 3 C137 39pF 0805 C102 1000pF LT6237IDD + R149 1k R154 499 0603 AIN0R129 1k EP + R120 1k R125 499 0603 R123 49.9 VCC C97 0.1uF AIN4 AIN5 R152 0 C116 OPT R110 OPT R114 0 C26 10uF LT6237IDD - 6 C98 OPT AIN1 VIN2 VIN1 C C104 0.1uF C136 39pF 0805 U29B 9 AIN2 2 JP9 HD1X2-100 5 9 2 C112 39pF 0805 AIN0 R150 49.9 0603 AIN4 AIN0+ U25A 3 C94 1000pF EP VEE 8 AIN1 17 9 18 10 19 11 20 12 21 13 22 14 23 15 24 16 7 - R108 49.9 8 VCM + R119 1k R124 499 0603 HD3X8-100 1 8 R113 0 J7 AIN0 6 LT6237IDD 4 R116 OPT C100 39pF 0805 U25B 9 JP5 HD1X2-100 5 9 D VCM BNC JP13 COUPLING AC DC R107 49.9 0603 AIN0 4 R115 OPT 4 C25 10uF 3 2 1 VIN1 0V - 5V MAX J5 VCC C135 0.1uF 9 4 9 5 1 C156 1000pF