Datasheet
LTC1063
12
1063fa
V
IN
*
–5V
R
5V
0.1µF
V
OUT
1063 TA06
* IF THE INPUT VOLTAGE CAN EXCEED V
+
,
CONNECT A SIGNAL DIODE BETWEEN PIN 1 AND V
+
.
1
2
3
4
8
7
6
5
LTC1063
C
1
2
3
4
8
7
6
5
LTC1063
–5V
5V
0.1µF
0.1µF
0.1µF
V
IN
*
V
OUT
V
IN
V
–
–7.5V
V
+
7.5V
0.1µF
1
2
3
4
8
7
6
5
LTC1063
f
CLK
0.1µF
7.5V
1µF
TANT
+
1063 TA05
V
OUT
10k
≅2.5mV
LT1009
10k
*
* OPTIONAL, 1N4148
V
IN
*
–5V
R
5V
0.1µF
V
OUT
1063 TA04
* IF THE INPUT VOLTAGE CAN EXCEED V
+
,
CONNECT A SIGNAL DIODE BETWEEN PIN 1 AND V
+
.
1
2
3
4
8
7
6
5
LTC1063
C
1
2
3
4
8
7
6
5
LTC1063
–5V
5V
0.1µF
0.1µF
0.1µF
f
C
≅ (1/RC)(1/100)
WIDEBAND NOISE = 140µV
RMS
ATTENUATION AT f = 2f
C
= 60dB
INPUT FREQUENCY (kHz)
0
(ms)
100
90
80
70
60
50
40
30
20
8
1063 F11
2
4
6
10
(A) LTC1063
BUTTERWORTH
1
35
79
(B) GROUP
DELAY
CORRECTED
V
IN
5V
13k
5V
0.1µF
V
OUT
1063 TA03
0.1µF
200pF
1
2
3
4
8
7
6
5
LTC1063
4.53k
+
4.99k
1µF
TANT
Group Delay
The group delay of the LTC1063 closely approximates the
delay of an ideal 5-pole Butterworth lowpass filter (Figure
11, Curve A). To linearize the group delay of the LTC1063
(Figure 11, Curve B), use an input resistor about six times
higher than the maximum value of R
IN
, shown in Table 1.
The passband response of the group delay corrected filter
approximates a 5-pole Bessel response while its transi-
tion band rolls off like a Butterworth.
Figure 11. Group Delay
Single 5V Supply Operation (f
C
= 3.4kHz)
Adjusting V
OS(OUT)
for
±7.5 Supply Operation
Sharing Clock for Multichannel Applications
Cascading Two LTC1063s for Steeper Roll-Off
APPLICATIO S I FOR ATIO
WUUU
TYPICAL APPLICATIO S
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