Datasheet

11
LT1008
1008fb
TYPICAL APPLICATIO S
U
–
+
8
2
3
*1% METAL FILM RESISTOR
ALL DIODES 1N4148
22k
100pF
1μF
6
22M
OPTIONAL 0.01Hz TRIM
15V
–15V
50k
3
6
2
2
V
IN
0V TO 10V
3
7
1
4
LT1008
100k
1.8k
1000pF
(POLYSTYRENE)
10k*
15V
LT1004C
1.2V
10k*
1k
10k
1008 TA08
FREQUENCY OUPUT
0.01Hz TO 10kHz
10k
LM329
15V–15V
15V
63.4k*
10k*
750k
10k
–
+
–
+
LT311A
–15V
LM301A
5pF
The LT1008 integrator extends low frequency range. Total
dynamic range is 0.01Hz to 10kHz (or 120dB) with 0.01%
linearity.
Extended Range Charge Pump Voltage to Frequency Converter
Amplifier for Photodiode Sensor Five Decade Kelvin-Varley Divider Buffered by the LT1008
–
+
LT1008
2
3
S1
λ
6
8
1008 TA06
OUTPUT
C1
100pF
V
OUT
= 10V/μA
R2
5M
1%
R1
5M
1%
–
+
1
1000pF
–15V
15V
10V
8
7
6
OUTPUT
APPROXIMATE ERROR DUE TO NOISE, BIAS CURRENT,
COMMON MODE REJECTION. VOLTAGE GAIN OF THE
AMPLIFIER IS 1/5 OF A LEAST SIGNIFICANT BIT
2
3
100k
KELVIN-VARLEY
DIVIDER
ESI #DP311
00000 – 99999 + 1
4
1008 TA07
LT1008