5 4 3 2 1 2 JP1 REF+ GND 4 VOUT NC 3 VIN 2 NC 1 8 1 GND TRIM 6 7 5V D E1 VOUT 5 VCC E2 NC NC C1 0.1UF FO LT1236ACS8-5 REF+ E3 C4 10UF,6.3V 0805 C2 4.7UF,6.3V 0805 C3 0.1UF 1 C7 0.1UF 3 E5 IN+ 2 R7 0 JP2 REF- EXT C R8 100 E6 IN- J2 1 GND GND GND 16 2 REF+ VCC 3 REF- REF+ 4 IN+ REF- 5 IN- IN+ 6 IN- 7 SDI CS 11 EXT 10 8 GND GND C8 330PF R9 0 BUSY 15 FO 14 SCK 13 SD0 12 9 R6 0 1 I1 2 GND 3 I0 C11 0.1UF R2 100 VCC U3 C9 330PF E7 OPT R3 LTC2440CGN R10 100 GND FO U1 REF- D C5 0.01UF E4 C6 4.7UF,6.3V 0805 1 R1 49.9,1% VCC J1 SMA 2 3 4 5 3 U2 EXT S 6 VCC 5 1 4 2 A1 3 A2 4 VSS 24LC025 Z NC7SZ157P6X VCC C10 0.1UF TRIGGERED Q 5 Q 3 2 GND VCC 8 CLR PR 7 CP SCL 6 SDA 5 R11 4.99K 1% 2 3 SCK 3 4 MISO 4 5 CS 5 6 MOSI 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 R5 4.99K 1% C NORMAL 3 B 1 JP3 TRIG MODE 6 R4 10K 1 VCC 8 WP 7 1 2 2 JP4 OPT D 4 1 CP 2 A0 1 VCC HD2X7-079-MOLEX U4 NL17SZ74US B U5 VIN NOTES: UNLESS OTHERWISE SPECIFIED CONTRACT NO. APPROVALS 1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE IN MICROFARADS, 0603. A DRAWN: 2. INSTALL SHUNT ON JP1-JP3 PIN 1 AND 2. TECHNOLOGY KIM T. CHECKED: TITLE: DESIGNER: SIZE A DATE: 5 4 3 SCHEMATIC HIGH SPEED DELTA SIGMA ADC APPROVED: ENGINEER: MARK T. 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 Fax: (408)434-0507 LTC Confidential-For Customer Use Only 2 DWG NO. DC570A-2 * LTC2440CGN Tuesday, January 07, 2003 SHEET 1 REV A 1 OF 1 A