5 4 3 2 1 REVISION HISTORY This circuit is proprietary to Linear Technology and supplied for use with Linear Technology parts. 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 Applications Engineering for assistance. ECO REV DESCRIPTION 2 DATE PROTO APPROVED 03/12/07 4.096V DAC VCC E9 C1 D 4 0.1uF 5 BYP 4 CS/LD 0.01uF 10uF 3 SDI 2 SCK 1 2.5V DAC C CS/LD 3 5V JP2 E10 1 5 10 EESDA 9 EEGND 12 NC 14 GND 11 GND EESCL SCK 1 R4 4.99K C8 0.1uF R6 4.99K 1% 5 3 GND GND C CS/LD E5 VOUT 6 2.5V, ZERO E6 GND U4 LTC2630LZ12CSC6 B C7 EEVCC 8 13 1K 2 GND VCC 4 MISO B R3 4.096V, MID E4 0.1uF 5 7 1K SDI U3 24LC025-I/ST 1% SDA SCL 6 WP 7 A2 3 A1 2 A0 1 R5 4.99K 3 SDI 2 SCK 1 CS/LD 1% E7 VOUT 6 2.5V, MID E8 GND U5 LTC2630LM12CSC6 CONTRACT NO. APPROVALS 4 A 0.1uF 4 4 1K R2 3 GND VCC SCK/SCL MOSI/SDA R1 6 U2 LTC2630HM12CSC6 5 6 SCK SDI 8 CS CS VCC 2 GND 5V E3 VOUT C6 J1 1 GND 2 3.3V VUNREG 4.096V, ZERO E2 0.1uF 5 VCC V+ 6 C3 C4 10uF E1 VOUT U1 LTC2630HZ12CSC6 C2 2 C5 OUT 1 4 SHDN SCK GND VCC IN 3 2 1 1 GND U6 LT1761ES5-3.3 2 SDI GND VCC EXT 3 5 3 5V JP1 D DRAWN CHECKED $% DATE & '& TECHNOLOGY TITLE 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 !" A # APPROVED ENGINEER DESIGNER SIZE CAGE CODE SCALE: 5 4 3 FILENAME: 2 DWG NO () REV SHEET OF 1