Datasheet

LT1055/LT1056
12
10556fd
For more information www.linear.com/LT1055
TYPICAL APPLICATIONS
†
INPUT
0V TO 10V
LT1055/56 TA03
–
+
11.3k*
EXPONENT
TRIM
2500Ω*
562Ω*
3.57k*
ZERO TRIM
15V
500k
500Ω*
4.7k
1.1k
10k*
3k
10k*
1k*
1k*
4.7k
2
3
4
5
6
–15V
–15V
7
LT1055
15V
500pF
POLYSTYRENE
6
2
3
15V
7
LM301A
15V
6
8
2N3906
2N3904
SAWTOOTH
OUTPUT
LM329
0.01µF
1
42
3
1
1N148
13
14
15
2.2k
9
7
8
33Ω
TEMPERATURE CONTROL LOOP
SCALE FACTOR
1V IN OCTAVE OUT
*1% METAL FILM RESISTOR
PIN NUMBERED TRANSISTORS = CA3096 ARRAY
–
+
Exponential Voltage-to-Frequency Converter for Music Synthesizers
†
For ten additional applications utilizing the
LT1055 and LT1056, please see the LTC1043
data sheet and Application Note 3.
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
0.01µF
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)