Datasheet

12
LT1055/LT1056
10556fc
Fast, 16-Bit Current Comparator
–
+
–
+
2
15V
7
6
3
15V
LT1056
4.7k
50k*
INPUT
LT1009
2.5V
100k*
4
–15V
2
HP5082-2810
8
15V
3k
OUTPUT
1
7
4
–15V
LT1011
3
DELAY = 250ns
* = 1% FILM RESISTOR
LT1055/56 TA06
12-Bit Charge Balance A/D Converter
–
+
–
+
28k
33k
14k
74C00
0.003µF
CLK OUTPUT (B)
10k
OUTPUT
(A)
D
P
CL
Q
Q
CLK
74C74
1N4148
0.01
2
15V
–15V
7
4
6
3
1N4148
1N4148
15V
10k
2N3904
249k*
0V TO 10V INPUT
COUPLE
THERMALLY
1N4148
6
33k
LM329
10k
15V
2
3
7
4
15V
–15V
LT1055/56 TA04
LT1055
LT1001
CIRCUIT OUTPUT
RATIO
f
OUT
(A)
f
CLK
(B)
Fast “No Trims” 12-Bit Multiplying CMOS DAC Amplifier
LT1055/56 TA05
R
FEEDBACK
I
OUT1
I
OUT2
OUTPUT
REFERENCE
IN
TYPICAL 12-BIT
CMOS DAC
–
+
LT1055
TYPICAL APPLICATIO S
U