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參數(shù)資料
| 型號(hào)： | LTC1566-1 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Low Noise 2.3MHz Continuous Time Lowpass Filter(低噪聲，2.3MHz，連續(xù)時(shí)間，低通濾波器) |
| 中文描述： | 低噪聲2.3MHz的連續(xù)時(shí)間低通濾波器（低噪聲，2.3MHz的，連續(xù)時(shí)間，低通濾波器） |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 147K |
| 代理商： | LTC1566-1 |
LTC1566-1
4
PIU
IN
+
, IN
–
(Pins 1, 2):
Input Pins. Signals can be applied to
either or both input pins. The DC gain from differential
inputs (Pin 1 to Pin 2) to the differential outputs (Pin 8 to
Pin 7) is 4V/V. The input range is described in the Applica-
tions Information section.
GND (Pin 3):
Ground. The ground pin is the reference
voltage for the filter. This is a high impedance input, which
requires an external biasing network. Biasing GND to
one-half the total power supply voltage of the filter maxi-
mizes the dynamic range. For single supply operation the
ground pin should be bypassed with a quality 0.1
μ
F
ceramic capacitor to Pin 4. For dual supply operation,
connect Pin 3 to a high quality DC ground. A ground plane
should be used. A poor ground will increase noise and
distortion. Pin 3 also serves as the DC reference voltage for
Pin 7.
V
–
, V
+
(Pins 4, 6):
Power Supply Pins. For a single 5V
supply (Pin 4 grounded) a quality 0.1
μ
F ceramic bypass
capacitor is required from the positive supply pin (Pin 6)
to the negative supply pin (Pin 4). The bypass should be
as close as possible to the IC. For dual supply applications
(Pin 3 is grounded), bypass Pin 6 to Pin 3 and Pin 4 to
Pin 3 with a quality 0.1
μ
F ceramic capacitor.
V
ODC
(Pin 5):
Output DC Offset. Pin 5 is the DC reference
voltage for Pin 8. By applying a DC offset between Pin 3
and Pin 5, a DC offset will be added to the differential signal
between Pin 7 and Pin 8. Like the GND pin, the V
ODC
pin is
a high impedance which requires no bias current. Care
should be taken when biasing Pin 5 since noise between
Pin 3 and Pin 5 will appear at the filter output unattenuated.
The frequency response of Pin 5 is described in the
Applications Information section.
OUT
–
, OUT
+
(Pins 7, 8):
Output Pins. Pins 7 and 8 are the
filter differential outputs. Each pin can drive 1k
or 300pF
loads. The DC reference voltage of Pin 8 is the same as the
voltage at Pin 5. The DC reference voltage of Pin 7 is the
same as the voltage at Pin 3.
TYPICAL PERFOR AU
TEMPERATURE (
°
C)
–50
70
1566-1 G08
–10
30
23
22
21
–30
10
50
90
V
S
=
±
5V
V
S
= 5V
FREQUENCY (Hz)
C
90
80
70
60
50
40
30
10k
100k
1M
10M
1566-1 G09
1k
V
IN
= 1V
P-P
V
S
= 5V
T
A
= 25
°
C
FREQUENCY (Hz)
P
70
60
50
40
30
20
10k
100k
1M
10M
1566-1 G10
1k
V
IN
= 0.2V
P-P
V
S
= 5V
T
A
= 25
°
C
Supply Current vs Temperature
Common Mode Rejection Ratio
Power Supply Rejection Ratio
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