Datasheet

LTC1064-1
6
10641fa
TYPICAL APPLICATIO S
U
Transitional Elliptic-Bessel Dual 5th Order Lowpass Filter
Transient Response to a 2V Step
Input V
OUT1
0.1ms/DIV
1V/DIV
1V/DIV
0.1ms/DIV
LTC1064-1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
+
V
–
f
CLK
= 200
× f
–3dB
1064 TA06
0.1µF
0.1µF
V
OUT1
V
IN2
C
47.5k
–
+
LT1056
C
47.5k
C = (µF)
5
f
–3dB
OUTPUT1 WIDEBAND NOISE: 50µV
RMS
OUTPUT2 WIDEBAND NOISE: 110µV
RMS
R(h, I)
COMP2*
V
–
f
CLK
NC
V
OUT
NC
INV C
V
IN
AGND
V
+
AGND
COMP1*
INV A
V
OUT2
V
IN1
Amplitude Response
f
IN
(kHz)
1
V
OUT
/V
IN
(dB)
15
0
–15
–30
–45
–60
–75
–90
–105
10 100
1064 TA09
V
OUT2
V
OUT1
f
–3dB
= 5kHz
f
CLK
= 1MHz
Adding an Output Buffer-Filter to Eliminate Any Clock Feedthrough
Over a 10:1 Clock Range, for f
CLK
= 2kHz to 20kHz
LTC1064-1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
+
V
–
1064 TA10
0.1µF
0.1µF
V
OUT
–
+
LT1056
200pF
430pF
4.99k 4.99k
50Ω
10k
0.027µF
R(h, I)
COMP2*
V
–
f
CLK
NC
V
OUT
NC
INV C
V
IN
AGND
V
+
AGND
COMP1*
INV A
V
IN
Transient Response to a 2V Step
Input V
OUT2