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參數(shù)資料
| 型號： | LMF60CIWM-50 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬濾波器 |
| 英文描述： | LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter |
| 中文描述： | SWITCHED CAPACITOR FILTER, BUTTERWORTH, LOWPASS, PDSO14 |
| 封裝： | 0.300 INCH, PLASTIC, SOP-14 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 391K |
| 代理商： | LMF60CIWM-50 |
TL/H/9294
L
May 1996
LMF60 High Performance
6th-Order Switched Capacitor
Butterworth Lowpass Filter
General Description
The LMF60 is a high performance, precision, 6th-order But-
terworth lowpass active filter. It is fabricated using Nation-
al’s LMCMOS process, an improved silicon-gate CMOS pro-
cess specifically designed for analog products. Switched-
capacitor techniques eliminate external component require-
ments and allow a clock-tunable cutoff frequency. The ratio
of the clock frequency to the low-pass cutoff frequency is
internally set to 50:1 (LMF60-50) or 100:1 (LMF60-100). A
Schmitt trigger clock input stage allows two clocking op-
tions, either self-clocking (via an external resistor and ca-
pacitor) for stand-alone applications, or for tighter cutoff fre-
quency control, a TTL or CMOS logic compatible clock can
be directly applied. The maximally flat passband frequency
response together with a DC gain of 1V/V allows cascading
LMF60 sections for higher-order filtering. In addition to the
filter, two independent CMOS op amps are included on the
die and are useful for any general signal conditioning appli-
cations. The LMF60 is pin- and functionally-compatible with
the MF6, but provides improved performance.
Features
Y
Cutoff frequency range of 0.1 Hz to 30 kHz
Y
Cutoff frequency accuracy of
g
1.0%, maximum
Y
Low offset voltage
g
100 mV, maximum,
g
5V supply
Y
Low clock feedthrough of 10 mV
p–p
, typical
Y
Dynamic range of 88 dB, typical
Y
Two uncommitted op amps available
Y
No external components required
Y
14-pin DIP or 14-pin wide-body S.O. package
Y
Single/Dual Supply Operation:
a
4V to
a
14V (
g
2V to
g
7V)
Y
Cutoff frequency set by external or internal clock
Y
Pin-compatible with the MF6
Applications
Y
Communication systems
Y
Audio filtering
Y
Anti-alias filtering
Y
Data acquisition noise filtering
Y
Instrumentation
Y
High-order tracking filters
Block and Connection Diagrams
TL/H/9294–1
All Packages
TL/H/9294–2
Top View
Order Number LMF60CMJ-50,
(5962-9096 701MCA or
LMF60CMJ50/883),
LMF60CMJ-100, or
(5962-9096 702MCA
or LMF60CMJ100/883)
See NS Package Number J14A
Order Number LMF60CIWM-50
or LMF60CIWM-100
See NS Package Number M14B
Order Number LMF60CIN-50
or LMF60CIN-100
See NS Package Number N14A
TRI-STATE
é
is a registered trademark of National Semiconductor Corporation.
C
1996 National Semiconductor Corporation
RRD-B30M56/Printed in U. S. A.
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|---|---|
| LMF60CMJ-100 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter |
| LMF60CMJ-100/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
| LMF60CMJ-50 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter |
| LMF60CMJ-50/883 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
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