LTC1062CS Linear Technology, LTC1062CS Datasheet - Page 8
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LTC1062CS
Manufacturer Part Number
LTC1062CS
Description
Manufacturer
Linear Technology
Datasheet
1.LTC1062CS.pdf
(16 pages)
Specifications of LTC1062CS
Architecture
Switched Capacitor
Cutoff Frequency
20KHz
Order Filter (max)
5th
Single Supply Voltage (typ)
9/12/15V
Dual Supply Voltage (typ)
±3/±5V
Power Supply Requirement
Single/Dual
Single Supply Voltage (min)
5V
Single Supply Voltage (max)
18V
Dual Supply Voltage (min)
±2.5V
Dual Supply Voltage (max)
±9V
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Filter Type
Low Pass Filter
Lead Free Status / RoHS Status
Not Compliant
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8
LTC1062
TYPICAL APPLICATIO S
HIGH DC INPUT = 100V
V
–
= –5V
Filtering AC Signals from High DC Voltages
V
EXAMPLE:
f
THE HIGH DC INPUT AND ACTS AS 5TH ORDER LP FILTER
FOR THE AC SIGNALS RIDING ON THE DC
CLK
IN
= 100KHz, f
25.8k
R
V
+
= 5V
C
1
2
3
4
= 1kHz. THE FILTER ACCURATELY PASSES
C
0.01µF
FB
AGND
V
DIVIDER
RATIO
–
LTC1062
V
Adding an External (R1, C1) to Eliminate the Clock Feedthrough and
IN
B
C
OUT
V
OUT
OSC
V
IN
U
R
+
1062 TA05
V
8
7
6
5
–
to Improve the High Frequency Attenuation Floor
AC Coupling an External CMOS Clock Powered
1
2
3
4
309.6k
C
V
12R
FB
AGND
V
DIVIDER
RATIO
C
0.01µF
–
CLK IN = f
–
LTC1062
from a Single Positive Supply, V
1
2
3
4
C
FB
AGND
V
DIVIDER
RATIO
DC OUTPUT
–
B
C
LTC1062
C
OUT
OUT
OSC
• 100
V
+
8
7
6
5
B
C
OUT
OUT
OSC
V
+
1062 TA04
8
7
6
5
10R
R1
V
f
CLK
+
V
V
+
C1
0.01C
OUT
100k
1062 TA03
0.01µF
–0.6
–0.8
–0.2
–0.4
–1.0
–1.2
–1.4
EXTERNAL
0.2
–
+
BUFFER
+
0
Passband Amplitude Response for the
0.01
High DC Accurate 5th Order Filter
V
f
CLK
S
= ±5V
= 100kHz
V
0
+
V
OUT
f
IN
0.1
/f
C
1062 TA06
1
1062fd