LT1055 Datasheet, PDF (10/12 Pages) Linear Technology – Precision, High Speed, JFET Input Operational Amplifiers

LT1055/LT1056
TYPICAL APPLICATIONS
12-Bit Charge Balance A/D Converter
Fast “No Trims” 12-Bit Multiplying CMOS DAC Amplifier
74C00
28k
14k
0.003µF
REFERENCE
IN
TYPICAL 12-BIT
CMOS DAC
R_FEEDBACK
I_OUT1
249k*
0.01
CLK OUTPUT (B)
2_–
15V
7
LT1055
1N4148
6
CLK _Q
D 74C74
10k
3₊
4
P CL ^Q
10k
–15V
2N3904
1N4148
1N4148
15V
OUTPUT
(A)
I_OUT2
–
LT1055
+
OUTPUT
LT1055/56 TA05
0V TO 10V INPUT
33k _LM329
COUPLE
THERMALLY
15V
2
7
6
LT1001
4
3
33k
–15V
1N4148
10k
15V
CIRCUIT OUTPUT
RATIO
f_OUT (A)
f_CLK (B)
LT1055/56 TA04
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
3k
OUTPUT
–15V
LT1055/56 TA06
Temperature-to-Frequency Converter
560 Ω
15V
LM329
1k*
1k*
2N2222
6.2k*
2N2907
0.01µF
POLYSTYRENE
500Ω
0°C ADJ
2k
100°C
ADJ
6.2k*
15V
2_–
7
6
LT1055
3₊
4
820Ω*
–15V
LM134
510pF
2.7k
10k
510Ω
2V
15V
10k
2N2222
TTL OUTPUT
0kHz TO 1kHz =
0°C TO 100°C
4.7k
137Ω*
10
*1% FILM RESISTOR
LT1055/56 TA07