5 4 3 2 1 REVISION HISTORY ECO REV DESCRIPTION 1 1 APPROVED Leo C. PRODUCTION DATE 10-10-12 D D J1 C1 0.1uF HDR2X7-079-MOLEX C3 SCK/SCL MOSI/SDA MISO C EEVCC EEGND EESDA EESCL VCC GND * LTC2636- 6 E3 4 7 VOUTA 5 U2 24LC025-I/ST 10 8 12 9 C4 0.1uF 11 R2 4.99K VCC 8 R1 4.99K 6 14 5 4 7 WP SCL SDA GND A2 A1 A0 7 3 R4 10K R3 10K 2 1 9 10 6 CS/LD VOUTB VOUTC SCK VOUTD SDI VOUTE CLR VOUTF LDAC VOUTG GND VOUTH 2 E4 3 E5 4 E6 5 E7 12 E8 13 E9 14 E10 15 E11 VOUTA VOUTB C VOUTC VOUTD VOUTE VOUTF VOUTG VOUTH 17 GND 16 B REF 11 U1 SDI SCK 1 CS/LD GND GND 2 3 8 13 GND NC E2 REF CS 0.1uF E1 1 VCC 5V Array EEPROM VUNREG C2 10uF B E12 CLR E13 LDAC * Assy Table U1 -A LTC2636IMS - LZ12 A -B LTC2636HMS - LMI12 -C LTC2636CMS - HZ12 -D CUSTOMER NOTICE LTC PART# TECHNOLOGY HZ Leo C. 4 3 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 12-BIT, OCTAL SPI DAC WITH INTERNAL REFERENCE SIZE LTC2636HMS - HMI12 THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 5 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 APP ENG. APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. N/A SCALE = NONE 2 DATE: IC NO. REV. LTC2636 FAMILY DEMO CIRCUIT 1466B Monday, November 12, 2012 1 SHEET 1 1 OF 11 A