5 4 3 2 1 REVISION HISTORY ECO REV DESCRIPTION 1 APPROVED 06/01/10 LEO C. C1 0.1uF VCC 0.1uF 0.1uF 10 IN1K IN- C8 0.1uF 2 C4 C6 0.1uF 10uF 1 CS SCK SDI SD0 2 12 VCC REF- R5 C7 8 E5 C2 13 11 7 1K IN+ COMP 9 GND GND GND R1 IN+ REFOUT 1 0.1uF E1 J1 VCC CS 3 6 TP7 SCK 5 4 SDI 6 SDO 4 7 5 11 U1 LTC2472CDD 10 VCC 1% 6 7 3 2 1 SCL WP A2 A1 A0 R4 4.99K 4 A TECHNOLOGY 5 4 3 EESCL EEVCC EESDA EEGND NC B 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only A 16-BIT DIFFERENTIAL DELTA SIGMA SPI ADC IC NO. REV. LTC2472CDD N/A SCALE = NONE C MISO TITLE: SCHEMATIC SIZE THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. MOSI/SDA U2 24LC025-I/ST 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. MI VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APP ENG. LEO C. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. 14 5 SDA SCK/SCL 0.1uF 1% B CUSTOMER NOTICE 12 C5 CS GND 1% 8 R3 4.99K 5V 3 E4 R2 4.99K VCC GND E3 GND VCC 9 VUNREG GND C3 GND E2 13 REFOUT D 8 D C DATE PRODUCTION DEMO CIRCUIT 1629A DATE: Tuesday, June 01, 2010 2 SHEET 1 1 2 OF 1