
LTC1293/LTC1294/LTC1296
TYPICAL APPLICATI S
Micropower, 5000V Opto-Isolated, Multichannel,12-Bit Data
Acquisition System is Accessed Once Every Two Seconds
8
ANALOG
INPUTS
0–5V RANGE
LT1027
10µF*
10k
9V
2N3906
10k
51k
4N28s
51k
5V
10k
2N3906
C1
150Ω
5V
150Ω
10k
SCK
CH0
DVCC
CH1
AVCC
CH2
CLK
CH3
CS
CH4 LTC1294 DOUT
CH5
DIN
CH6
REF+
CH7
REF–
COM
DGND
AGND
V–
*SOLID TANTALUM
5.1k
(3)
51k
TO ADDITIONAL
LTC1294s
4N28
51k
300Ω
10k
2N3904
4N28
ISOLATION
BARRIER
NC
5V
150Ω
10k
C0
5V
10k
150Ω
MOSI
5.1k
51k
MISO
5V
LT1292 TA02
TO
68HC11
26