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參數資料
| 型號： | LTC1062CSW#PBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC FILTR 5TH ORDR LOWPASS 16SOIC |
| 標準包裝： | 47 |
| 濾波器類型： | 巴特沃斯，低通開關電容器 |
| 頻率 - 截止或中心： | 20kHz |
| 濾波器數： | 1 |
| 濾波器階數： | 5th |
| 電源電壓： | ±8V，5V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 16-SOIC |
| 包裝： | 管件 |
| 產品目錄頁面： | 1324 (CN2011-ZH PDF) |
1
LTC1062
1062fd
10Hz 5th Order Butterworth Lowpass Filter
Filter Amplitude Response and Noise
■
Lowpass Filter with No DC Error
■
Low Passband Noise
■
Operates DC to 20kHz
■
Operates On a Single 5V Supply or Up to ±8V
■
5th Order Filter
■
Maximally Flat Response
■
Internal or External Clock
■
Cascadable for Faster Rolloff
■
Buffer Available
The LTC
1062 is a 5th order all pole maximally flat
lowpass filter with no DC error. Its unusual architecture
puts the filter outside the DC path so DC offset and low
frequency noise problems are eliminated. This makes the
LTC1062 very useful for lowpass filters where DC accuracy
is important.
The filter input and output are simultaneously taken across
an external resistor. The LTC1062 is coupled to the signal
through an external capacitor. This RC reacts with the
internal switched capacitor network to form a 5th order
rolloff at the output.
The filter cutoff frequency is set by an internal clock that
can be externally driven. The clock-to-cutoff frequency
ratio is typically 100:1, allowing the clock ripple to be
easily removed.
Two LTC1062s can be cascaded to form a 10th order quasi
max flat lowpass filter. The device can be operated with
single or dual supplies ranging from ±2.5V to ±9V.
The LTC1062 is manufactured using Linear Technology’s
enhanced LTCMOS
TM silicon gate process.
■
60Hz Lowpass Filters
■
Antialiasing Filter
■
Low Level Filtering
■
Rolling Off AC Signals from High DC Voltages
■
Digital Voltmeters
■
Scales
■
Strain Gauges
LTCMOS is a trademark of Linear Technology Corporation.
FB
AGND
V–
DIVIDER
RATIO
BOUT
OUT
V+
COSC
1
2
3
4
8
7
6
5
LTC1062
COSC=
3900pF
1062 TA01
1F
VIN
25.8k
V+ = 5V
V– = –5V
DC ACCURATE
OUTPUT
BUFFERED
OUTPUT
NOTE: TO ADJUST OSCILLATOR FREQUENCY,
USE A 6800pF CAPACITOR IN SERIES
WITH A 50k POT FROM PIN 5 TO GROUND
INPUT FREQUENCY (Hz)
1
–100
AMPLITUDE
RESPONSE
(dB)
–80
–60
–40
–20
10
100
1062 TA02
0
–90
–70
–50
0
FILTER
OUTPUT
NOISE
(
V/
√
Hz)
20
40
10
30
50
–30
–10
COSC = 3900pF
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
5th Order Lowpass Filter
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相關代理商/技術參數 |
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