Linear Technology DC1339 Quick Start Manual page 6

QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339
J1
R1
IN+
0V - 4.096V
100
R3
49.9
R4
1%
(Opt) 100
1
GND
2
IN-
3
VREF/2
C8
JP3
1uF
16V
VREF/2
E5
E6 C9
EXT REF
10uF
6.3V
1
EXT REF
2
VREF
3
4.096V
JP4
U6
LT1790ACS6-4.096
6 4
VOUT VIN
C16
5 3
DNC DNC
1uF
16V
GND GND
2 1
U5
LT1761ES5-5
E9
R8
1
6V - 9V
IN
10
C15
47uF
10V 3
SHDN
GND
E10
C17
GND 10uF
2
JP1
1
EXT
2
OVDD
5V
3
5V
C1
10uF
6.3V
C2
0.1uF
3
E2 E3
IN+ IN-
IN+
4
IN-
5
C4 C5
EXPOSED
47pF 47pF
PAD
11 7
E4
VREF
R6
4.99K
1%
R7
4.99K
1%
U4
5V
LT1761ES5-2.5
5V
1 5
C10 IN OUT
0.1uF
3 4
SHDN ADJ
GND
2
5V
E8
5V
5
OUT
C14
C13
1uF
0.01uF
4
ADJ
LOW NOISE, 500KSPS, 12-BIT ADC
OVDD
E1
C3
U1
0.1uF
10
LTC2302CDD
NC7SVU04P5X
CONVST 2
R2
SDO 1
301 1%
SCK 9
R5
SDI 8 3.01K
1%
6
C6
0.1uF
C7
10uF
6.3V
2.5V
E7
2.5V
C12
C11
1uF
0.01uF
2.5V 5V
C33 C34
U2 U3
SN74AHCT1G04DCKT
5 0.1uF 0.1uF 5
2 4 2 4
3 3
1
3
5
7
SDO_AT_BUF
SDO_AT_590
2
DO
4
CLK
6
CNV
8
DI
JP2
CONV_AT_ADC
SCK_AT_ADC
SDI_AT_ADC
6