LT1028 Datasheet, PDF (16/20 Pages) Linear Technology – Ultra Low Noise Precision High Speed Op Amps

LT1028/LT1128
TYPICAL APPLICATI
Super Low Distortion Variable Sine Wave Oscillator
C1
0.047
R1
20Ω 2k
C2
0.047
20Ω
2k
R2
2.4k
+
LT1028
–
5.6k
10pF
22k
15µF
2N4338
560Ω
10k
100k
TRIM FOR
20k _LOWEST
DISTORTION
LT1055
<0.0018% DISTORTION AND NOISE.
MEASUREMENT LIMITED BY RESOLUTION OF
HP339A DISTORTION ANALYZER
1V_RMS OUTPUT
1.5kHz TO 15kHz
( ) f = 1
2πRC
WHERE R1C1 = R2C2
4.7k
15V
LT1004-1.2V
MOUNT 1N4148s
IN CLOSE PROXIMITY
10k
1028/1128 TA10
Chopper-Stabilized Amplifier
15V
1N758
3₊
7
6
LT1052
2_–
4
8
1
0.1
0.1
0.01
INPUT
1N758
15V
–15V
100k
130Ω
68Ω 30k
1
7
3₊
8
LT1028
OUTPUT
2_{– 4}
10k
–15V
1028/1128 TA11
10Ω
Low Noise Infrared Detector
5V
10Ω
1k
33Ω
100µF
OPTICAL
CHOPPER
WHEEL
IR
RADIATION
PHOTO-
ELECTRIC
PICK-OFF
100µF
SYNCHRONOUS
DEMODULATOR
10k*
10k*
267Ω
1000µF
5V
3₊
7
6
39Ω
LT1028
2_–
8
4
– 5V
INFRA RED ASSOCIATES, INC.
1/4 LTC1043
13
12
10k
14
16
5V
2₊
7
6
LM301A
3_–
1
8
4
–5V _30pF
5V
2₊
7
1M
3
LT1012
–₁
4
–5V
6
8
HgCdTe IR DETECTOR
10Ω
13Ω AT 77°K
DC OUT
1028/1128 TA12
16