LT119A/LT319A
LM119/LM319
TYPICAL APPLICATIO S
10-Bit Serial Output A/D Converter
5V
INPUT
0V TO 3.5V
20k*
LT1004-1.2
10k
PN4250
PN4250
4
5
82k
0.1µF
†
2N3904
1k
3.9k
*1% FILM
–5V
†
POLYSTYRENE, MOUNT
CAPACITORS CLOSE TOGETHER
1N4148
1k
15k
CONVERSION TIME = 10ms
* = 1%
CAPACITORS ARE POLYSTYRENE MOUNT
IN CLOSE PROXIMITY
LT119/319 TA7
15V
+
10µF
4.7k
100Ω
2N2907
12k
0.003µF
†
10k
12
2N2907
3k
20k
2N2222
*TRIM FOR ZERO VOLTS OUT
WITH ZERO VOLTS IN
†
POLYSTYRENE CAPACITOR
U
5V
10k*
4.7k
5V
–
+
6
–5V
11
12
3
1N4148
1000µF
†
1/2 LT119A
9
74C04
+
1/2 LT119A
7
1k
10
1N4148
–
8
39k
DATA
OUT
CONVERT
COMMAND
INPUT (TTL)
5V
5 Microsecond Sample-and-Hold with Zero Hold Step
1N4148
3k
15V
2N4931
15V
11
V
OUT
240Ω
2N2907
–
1/2 LT119A
3
5
3.3k
–15V
9k
10pF
2pF
TO 8pF*
10
–
1/2 LT119A
7
8
15V
+
6
4
1k
1k
9k
9
+
INPUT
–15V
1N4148
3k
Q V
S
CLK D
74C74
CLR
PRESET
5V
0V
SAMPLE
HOLD
LT119/319 TA8
119a319afb
7
LINER [ LINEAR TECHNOLOGY ]
