Datasheet

13
LTC1440/LTC1441/LTC1442
144012fd
10-Bit 30µA A/D Converter
–
+
5V
5V
2N3809
1N914
32.768kHz
VN2222LL
10pF
100k
E
IN
0V TO 3V
365k*
470k
1M
10M
150k
0.033µF
POLYSTYRENE
C1
1/2 LTC1441
LT
®
1034
1.2V
Q
D CLK
74C74
CONV
COMMAND
DATA
OUT
STATUS
1440/1/2 TA03
Q
1.2M
–
+
C2
1/2 LTC1441
74C00
74C00 74C00
74C00
*TRW-IRC MRT–5/+120ppm/°C
TYPICAL APPLICATIONS
U
32.768kHz “Watch Crystal” Oscillator
+V
32.768kHz
10pF
470k
1M
OUT
1440/1/2 TA05
1.2M
–
+
1/2
LTC1441