LTC1062
TYPICAL APPLICATIO S
Simple Cascading Technique
5V
25.8k
V
IN
1µF
1
2
FB
AGND
V
–
B
OUT
OUT
+
LTC1062
–5V
3
4
V
6
5
–5V
3
4
V
–
DIVIDER C
OSC
RATIO
10Hz, 10TH ORDER DC ACCURATE LOWPASS FILTER
60dB/OCTAVE ROLLOFF
0.5dB PASSBAND ERROR, 0dB DC GAIN
MAXIMUM ATTENUATION 110dB (f
CLK
= 10kHz)
100dB (f
CLK
= 1kHz)
95dB (f
CLK
= 1MHz)
CONTROL
(HIGH, GROUND, LOW)
10
U
412k
0.1µF
8
7
1
2
FB
AGND
B
OUT
OUT
V
+
8
7
3
+
–
1
7
LTC1052
6
8
4
DC ACCURATE
OUTPUT
2
LTC1062
6
5
0.1µF
–5V
0.1µF
DIVIDER C
OSC
RATIO
V
+
= 5V
1062 TA11
f
CLK
= 1kHz
100Hz, 50Hz, 25Hz 5th Order DC Accurate LP Filter
25.8k
V
IN
0.1µF
1
2
1
2
FB
AGND
V
–
0.1µF
3
13
1/2 CD4016 4
B
OUT
OUT
V
+
8
7
B
OUT
V
OUT
0.2µF
5
LTC1062
–5V
3
4
6
5
5V
10kHz
CLK IN
DIVIDER C
OSC
RATIO
100k
5V
100k
TO PIN 5 OF CD4016
–5V
5V
100k
BY CONNECTING PIN 4 OF THE LTC1062
HIGH/GROUND/LOW THE FILTER CUTOFF
FREQUENCY IS 100Hz/50Hz/25Hz
TO PIN 13 OF CD4016
100k
–5V
1062 TA12
1062fd
LINER [ LINEAR TECHNOLOGY ]
