Datasheet

11
LT1055/LT1056
TYPICAL APPLICATIONS
U
100kHz Voltage Controlled Oscillator
–
+
15V
–15V
7
4
3
2
6
LT1056
OUTPUT
0V TO 10V
C
F
= 15pF TO 33pF
SETTLING TIME TO 2mV
(0.8 LSB) = 1.5µs TO 2µs
0 TO 2
OR 4mA
12-BIT CURRENT OUTPUT D/A
CONVERTER (e.g., 6012,565
OR DAC-80)
C
F
LT1055/56 TA09
12-Bit Voltage Output D/A Converter
10k
10k
100pF
LT1055/56 TA10
–
+
7
4
3
2
6
LT1055
10k
INPUT
1N965
1µF
510Ω
330Ω
125V
2N5415
50k
50k
1M
1M

1N4148
1N4148
2N2222
2N2907
1k
1k
2N3440
27Ω
27Ω
OUTPUT
2N5415
2N3440
330Ω
510Ω
1N965
1µF
–125V
33pF
100k
10k
±25mA OUTPUT
HEAT SINK OUTPUT
TRANSISTORS
±120V Output Precision Op Amp
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
–
+
–
+
–
+
–
+
X1
X2
U1
U2
COM

VR
Y1
Y2
+V
CC
W
Z1
Z2

GT
UP
–V
+15V
SINE OUT
2V
RMS

0kHs TO 100kHs




–15
AD639
2
3
15V
7
6
4
–15V
–15V
68k
68k
10k
4.5k22.1k
1k
LT1056
FINE
DISTORTION
TRIMS
15V
15V
15V
15V
–15V
–15V
–15V
–15V
LT1055/56 TA08
50k
10Hz
DISTORTION
TRIM
22M
POLYSTYRENE
500pF
7
4
3
2
6
LT1056
22k
15pF
HP5082-
2810
3
2
10k*
10k
1k
4.7k
4.7k
*1% FILM RESISTOR
=1N4148
FREQUENCY LINEARITY = 0.1%
FREQUENCY STABILITY = 150ppm/°C
SETTLING TIME = 1.7µs
DISTORTION = 0.25% AT 100kHz,
0.07% AT 10zHz

1k
5k
FREQUENCY
TRIM
LT1011
8
7
1
4
LM329
0.01µF
2.5k*
10k*
5k*
2N4391
2N4391
2N4391
6
7
4
15V
–15V
LT1056
100kHz
DISTORTION
TRIM
2k
9.09k*
0V TO 10V
INPUT
2
3
10k
20pF