LTC1164-8CSW Linear Technology, LTC1164-8CSW Datasheet - Page 8

• Manufacturer Part Number: LTC1164-8CSW
• Description: IC FILTR 8TH ORDR LOWPASS 16SOIC
• Manufacturer: Linear Technology

Specifications of LTC1164-8CSW

• Filter Type: Elliptic Bandpass Switched Capacitor
• Frequency - Cutoff Or Center: 7kHz
• Number Of Filters: 1
• Max-order: 8th
• Voltage - Supply: 4.75 V ~ 16 V, ±2.375 V ~ 8 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC1164-8CS

APPLICATIONS
LTC1164-8
Table 4. Recommended Op Amps for LTC1164-8
Aliasing
At the filter’s output, alias signals will appear when
signals at the filter’s input have substantial energy very
near the clock frequency or any of its multiples (2 • f
3 • f
operates with a 100kHz clock and has a 99kHz, 10mV
signal at its input, a 1kHz, 10mV alias signal will appear
at the filter’s output. Table 5 shows details.
Table 5. Aliasing (f
INPUT FREQUENCY
99.04kHz
(or 100.96kHz)
99.02kHz
(or 100.98kHz)
99.01kHz
(or 100.99kHz)
99.005kHz
(or 100.995Hz)
99.00kHz
(or 101.00kHz)
98.995kHz
(or 101.005kHz)
98.99kHz
(or 101.01kHz)
98.98kHz
(or 101.02kHz)
98.96kHz
(or 101.04kHz)
8
CLK
SINGLE
LT1006
LT1012
LT1077
, ... etc.). For example, if an LTC1164-8 filter
CLK
(RELATIVE TO INPUT)
U
= 100kHz)
OUTPUT LEVEL
– 3dB ±2dB
– 3dB ±2dB
0dB ±1dB
< – 50dB
< – 40dB
< – 40dB
< – 50dB
< – 6dB
< – 6dB
LT1013
LT1078
LT1112
LT1413
INFORMATION
DUAL
U
W
OUTPUT FREQUENCY
(ALIAS FREQUENCY)
1000Hz
1005Hz
1010Hz
1020Hz
1040Hz
LT1014
LT1079
LT1114
960Hz
980Hz
990Hz
995Hz
QUAD
U
CLK
,
Transient Response
Clock Feedthrough
Figure 4. Clock Feedthrough at the Output of External Op Amp
A. With No Capacitor Across Feedback Resistor R
B. With Capacitor C
1/(2π • R
LT1006
V
f
V
f
f
V
f
f
CLK
CLK
CENTER
CLK
CENTER
S
S
S
= ±5V
= ±5V
= ±5V
= 100kHz
= 500kHz
= 100kHz
F
Figure 5. Square Wave Input (±2.5V)
= 5kHz
= 1kHz
• C
Figure 6. Sine Wave Burst Input
F
) = 10 • f
F
Across Feedback Resistor R
CENTER
50ms/DIV
5ms/DIV
5μs/DIV
LTC1164-8 • F04
LTC1164-8 • F05
LTC1164-8 • F06
F
F
A
B
OUTPUT
INPUT
OUTPUT
INPUT
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