LT1055_15 Datasheet, PDF (12/16 Pages) Linear Technology – Precision, High Speed, JFET Input Operational Amplifiers

LT1055/LT1056
TYPICAL APPLICATIO S
12-Bit Charge Balance A/D Converter
74C00
28k
14k
0.01
0.003µF
CLK OUTPUT (B)
249k*
2_–
15V
7
LT1055
1N4148
6
CLK _Q
D 74C74
10k
3₊
4
P CL ^Q
10k
–15V
2N3904
1N4148
1N4148
15V
0V TO 10V INPUT
COUPLE
THERMALLY
33k _LM329
15V
2
7
6
LT1001
4
3
33k
–15V
10k
15V
CIRCUIT OUTPUT
RATIO
f_OUT (A)
f_CLK (B)
1N4148
LT1055/56 TA04
OUTPUT
(A)
Fast “No Trims” 12-Bit Multiplying CMOS DAC Amplifier
REFERENCE
IN
R_FEEDBACK
TYPICAL 12-BIT
CMOS DAC
I_OUT1
I_OUT2
–
LT1055
+
OUTPUT
LT1055/56 TA05
Fast, 16-Bit Current Comparator
4.7k
15V
INPUT
LT1009
2.5V
50k*
100k*
HP5082-2810
15V
2_–
7
LT1056
6
3₊
4
–15V
DELAY = 250ns
* = 1% FILM RESISTOR
15V
2₊
8
7
LT1011
3
–
1
4
–15V
3k
OUTPUT
LT1055/56 TA06
10556fc
12