VCM OVP (U3 ON BACK SIDE OF THE BOARD) VDD B5 A5 7 14 B4 A4 6 15 A3 5 R10 B3 16 B2 A2 4 * 17 A1 3 A0 2 T/R GND 3 C3 R13 C8 2.2uF R50 * 38 39 40 41 42 37 OVP OGND D12 D13 D14 D15 44 45 46 43 OF OE MODE 30 8 GND CLKOUT- 29 9 ENC+ D7 28 10 ENC- D6 27 11 GND D5 26 12 Vdd OVP 25 R56 E9 R54 opt. C42 0.1uF 4 VOCM 1 SHDN 10 5 16 NC NC VVV- 3 9 12 V- 17 0.1uF 3 C34 1000pF 2 V+ 1 JP2 3 EN DIS SHDN U2/U3 C47 0.1uF R57 10 3 7 SHDN V- 6 V- 9 7 8 8 33 10 9 33 9 10 10 RN1C 11 33 11 12 12 RN1D 13 33 13 14 14 RN2A 15 33 15 16 16 RN2B 17 33 17 18 18 RN2C 19 33 20 20 RN2D 19 21 33 21 22 22 RN3A 23 20 A7 24 8 33 24 A6 RN3B 23 B6 25 26 A5 7 33 26 B5 RN3C 25 27 28 33 28 A4 RN3D 27 6 29 30 A3 33 30 B3 RN4A 29 5 31 32 32 A2 4 33 31 B2 RN4B 33 34 33 34 A1 RN4C 33 3 35 36 33 36 A0 RN4D 35 2 37 37 38 38 1 39 39 40 40 T/R GND 10 OVP 17 19 B4 B1 B0 OE 3201S-40G1 C43 47nF C44 1.0uF 1 4 R20 opt. R21 10K * U7 C36 1000pF V+ V+ 7 RN1B B7 16 VDD C18 0.1uF R58 10K C38 0.1uF V+ VDD V+ E5 E1 + C27 10uF 6.3V opt. C41 4.7uF U2 U3 DC1058A-A LTC2203CUK Do Not Install LT1994CDD DC1058A-B LTC2207CUK LTC6404CUD-1 1 2 3 4 A0 VCC A1 WP A2 SCL A3 SDA R19 10K R18 10K C13 0.1uF 8 7 6 5 U7 NC7SVU04 OVP VDD +3.3V E6 + C39 10uF 6.3V opt. C23 4.7uF GND GND C25 0.1uF OVP C26 0.1uF C51 4.7uF E8 E3 GND E4 * VERSION TABLE U1 C14 0.1uF C19 0.1uF R17 10K U6 24LC025 JP5 DITH OFF ON 2 E7 ASSEMBLY TYPE 2 U5 NC7SV86P5X 3 R48 53.6 * U3B VOCM 6 1 C17 0.1uF 4 C52 0.1uF 2 6 12 15 1 VOCM 4 5 9 14 V+ 2 10 11 2 4 11 13 + C35 10uF 6.3V opt. V+ V+ V+ 2 3 5 5 C11 10 * U2B R53 100 1 3 33 VCC 18 VCM R59 opt. 1 RN1A OVP U9 33 74VCX245BQX C16 0.1uF C48 0.1uF V+ J1 R5 74VCX245BQX 24 23 D4 OGND CLKOUT+ D3 Ain- OE 3 R47 2 R52 10K 47 7 5 R51 10K PGA OGND 31 4.99 Ain+ * * R29 VDD 32 6 C50 LOW FREQUENCY CLOCK PATH VDD D8 U1 * 4.99 * R62 *R28 C12 0.1uF 33 22 0.1uF J3 D9 21 3 Vdd D2 4 4 D1 2 34 GND * R27 1 D10 13 C10 * Vdd Vdd 5 R16 open * T1 C49 R26 3 20 * 35 5 HIGH FREQUENCY CLOCK PATH C30 0.1uF D11 19 R61 Vcm D0 R60 36 18 * 2 B0 19 OVP SHDN C46 Sense DITH * 1 17 * R44 C4 * RAND opt. R12 GND C28 opt. Vdd opt. R9 8 7 R11 16 * R40 14 13 B1 18 * R14 ENCODE INPUT 3 8 13 * * 1 9 A6 6 - R45 1K A7 B6 R42 0.1uF 20 VCC NORM 15 J4 2 14 * IN+ OVP U8 B7 15 + C6 4 2 C1 0.1uF 12 opt. * U2A R41 0 NC7SV86P5X 1 11 LO 0.1uF J2 RAND 48 IN- 2 2 OGND HI GND * R38 JP4 RAND PGA R64 R37 C9 * JP3 * 5 3 * 10 R2 10K 1 8 * R36 3 5 4 R1 10K R55 * R63 U3A 1 * 1 U4 INV NORM R3 * R30 * R31 C5 JP1 opt. R6 open C7 C3, C4 C46, C49, C50 R30, R31, R36, R37 opt 22pF 499 R38, R42 R10, R14 Do Not Install Do Not Install R63, R64 51.1 R27, R28 R62 Do Not Install Do Not Install R29, R50 R26 R11, R13 10 0 51.1 R40,R44 Do Not Install R45 T1 54.9 Do Not Install Do Not Install Do Not Install opt 10pF 100 Do Not Install 51.1 100 20.0 75.0 MABA-007159-000000 DC1058A-C LTC2207CUK LTC6404CUD-2 Do Not Install Do Not Install opt 10pF Do Not Install 100 200 Do Not Install 51.1 100 Do Not Install Do Not Install 20.0 20.0 75.0 MABA-007159-000000 DC1058A-D LTC2207CUK LTC6404CUD-4 Do Not Install Do Not Install opt 10pF Do Not Install 100 402 Do Not Install 51.1 100 Do Not Install Do Not Install 20.0 20.0 68.1 MABA-007159-000000 DC1058A-E LTC2207CUK LTC6406CUD Do Not Install Do Not Install 1.8pF 4.7pF Do Not Install 150 150 Do Not Install 51.1 100 Do Not Install Do Not Install 24.9 24.9 68.1 MABA-007159-000000 DC1058A-F LTC2203CUK LTC6403CUD-1 Do Not Install NC7SVU04 opt 15pF Do Not Install 402 402 Do Not Install Do Not Install Do Not Install 51.1 51.1 54.9 Do Not Install 100 CUSTOMER NOTICE LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. Do Not Install Do Not Install 10 20.0 0 Do Not Install CONTRACT NO. APPROVALS DRAWN June Wu DATE 2/8/06 CHECKED TECHNOLOGY TITLE 16-BIT ADC DRIVERS APPROVED ENGINEER Cheng-Wei Pei 2/8/06 DESIGNER Friday, July 13, 2007 SIZE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 CAGE CODE SCALE: FILENAME: DWG NO REV A DC1058A SHEET 1 OF 1