|
Details, datasheet, quote on part number:LMF60CMJ-50
| |
| Part: | LMF60CMJ-50 |
| Category: | Analog & Mixed-Signal Processing => Filters |
| Description: | Lmf60 High Performance 6th-order Switched Capacitor Butterworth Lowpass Filter |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LMF60CMJ-50 datasheet File size : 401 kB |
| Request For quote: | Find where to buy LMF60CMJ-50
|
| |
Datasheet text preview:
LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter
May 1996
LMF60 High Performance 6th-Order Switched Capacitor Butterworth Lowpass Filter
General Description
The LMF60 is a high performance precision 6th-order Butterworth lowpass active filter It is fabricated using National's LMCMOS process an improved silicon-gate CMOS process specifically designed for analog products Switchedcapacitor techniques eliminate external component requirements 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 options either self-clocking (via an external resistor and capacitor) for stand-alone applications or for tighter cutoff frequency 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 applications The LMF60 is pin- and functionally-compatible with the MF6 but provides improved performance
Y Y Y Y Y Y Y Y Y
eatures
Cutoff frequency range of 0 1 Hz to 30 kHz Cutoff frequency accuracy of g 1 0% maximum Low offset voltage g 100 mV maximum g 5V supply Low clock feedthrough of 10 mVp p typical Dynamic range of 88 dB typical Two uncommitted op amps available No external components required 14-pin DIP or 14-pin wide-body S O package Single Dual Supply Operation a 4V to a 14V ( g 2V to g 7V) Cutoff frequency set by external or internal clock Pin-compatible with the MF6
Y Y
Applications
Communication systems Audio filtering Y Anti-alias filtering F Y Data acquisition noise filtering Y Instrumentation Y High-order tracking filters
Y Y
Block and Connection Diagrams
All Packages
TL H 9294 2
Top View Ord( r Number LMF60CMJ-50 e 5962-9096 701MCA or LMF60CMJ50 883) LMF60CMJ-100 or (5962-9096 702MCA or LMF60CMJ100 883) See NS Package Number J14A
TL H 9294 1
Order Number LMF60CIWM-50 or LMF60CIWM-100 See NS Package Number M14B Order Number LMF60CIN-50 or LMF60CIN-100 See NS Package Number N14A
C TRI-STATE is a registered trademark of National Semiconductor Corporation
1996 National Semiconductor Corporation
TL H 9294
RRD-B30M56 Printed in U S A
Absolute Maximum Ratings (Note 1)
p If Military Aerospace specified devices are required lease contact the National Semiconductor Sales S Office Distributors for availability and specifications upply Voltage (V
a
Soldering Information N Package 10 sec
b V ) (Note 2)
a
b
15V V a 0 2V b V b 0 2V 5 mA 20 mA 500 mW
b 65
J Package 10 sec SO Package Vapor Phase (60 sec )
Infrared (15 sec ) (Note 6)
Voltage at Any Pin Input Current at Any Pin (Note 3) Package Input Current (Note 3) Power Dissipation (Note 4) Storage Temperature ESD Susceptibility (Note 5) CLK IN Pin
260 300 215 220
C C C C
Operating Ratings (Note 1)
Temperature Range TMin s TA s TMax LMF60CIN-50 LMF60CIN-100 LMF60CIJ-50 LMF60CIJ-100 LMF60CIWM-50 b 40 C s TA s a 85 C MF60CIWM-100 LMF60CMJ-50 LMF60CMJ-100 LMF60CMJ50 883 b 55 C s TA s a 125 C LMF60CMJ100 883 a 4V to 14V Supply Voltage (V b Vb)
C to a 150 C
2000V 1700V
Filter Electrical Characteristics
The following specifications apply for fCLK e 500 kHz (Note 7) unless otherwise specified Boldface limits apply for TA e TJ Se TMIN to TMAX all other limits TA e TJ e 25 C ymbol V
a
Parameter
Conditions
Typical (Note 8)
Limits (Note 9)
Units (Limits)
e a 5V V b e b 5V
fCLK IS
Clock Frequency Range (Note 16) Total Supply Current Clock Feedthrough VIN e 0V Filter Opamp
5 15 70 10 5 0 10
b 0 26
Hz (Min) MHz (Max) 12 0 mA (Max) mVp-p mVp-p 0 10 b0 30 dB (Max) dB (Min) (Max) (Max)
Ho fCLK fC
DC Gain Clock to Cutoff Frequency Ratio (Note 10) LMF60-50 LMF60-100
RSource s 2 kX
49 00 g 0 8% 98 10 g 0 8%
49 00 g 1 0% 98 10 g 1 0%
Temperature Coefficient of fCLK fC AMIN VOS VOUT ISC Stopband Attenuation DC Offset Voltage Output Voltage Swing (Note 2) Output Short Circuit Current (Note 11) Dynamic Range (Note 12) Additional Magnitude Response Test Points (Note 13) LMF60-50 fIN e 12 kHz fIN e 9 kHz LMF60-100 fIN e 6 kHz fIN e 4 5 kHz Source Sink LMF60-50 LMF60-100 At 2 c fC
4 36
g 100 g 150
ppm C dB (Min) mV (Max) mV (Max) a3 7 b4 0 V (Min) V (Max) mA mA dB
b 9 45 g 0 46 b 0 87 g 0 16 b 9 30 g 0 46 b 0 87 g 0 16
a3 9 b4 2
90 22 88 b9 45 g 0 50 b0 87 g 0 20 b9 30 g 0 50 b0 87 g 0 20
dB dB dB dB
http
www national com
2
Filter Electrical Characteristics (Continued) The following specifications apply for fCLK e 250 kHz (Note 7) unless otherwise specified Boldface limits apply for TA e TJ S e TMIN to TMAX all other limits TA e TJ e 25 C
ymbol Parameter Conditions Typical (Note 8) Limits (Note 9) Units (Limits)
V a e a 2 5V Vb e b2 5V fCLK IS Clock Frequency Range (Note 16) Total Supply Current Clock Feedthrough (Peak to Peak) Ho DC Gain (with RSource s 2 kX) VIN e 0V Filter Opamp 6 3 0 10
b 0 26 b 0 08
5 750 50 65
Hz (Min) kHz (Max) mA (Max) mV mV 0 10 b0 30 dB (Max) dB (Min) dB
fCLK e 250 kHz fCLK e 500 kHz
fCLK fC
Clock to Cutoff Frequency Ratio (Note 10)
LMF60-50
fCLK e 250 kHz fCLK e 500 kHz 49 00 g 0 6%
49 00 g 0 8%
49 00 g 1 0%
(Max)
LMF60-100
fCLK e 250 kHz fCLK e 500 kHz 98 10 g 0 6% 4 At 2 c fC
98 10 g 0 8%
98 10 g 1 0%
(Max)
Temperature Coefficient of fCLK fC AMIN VOS VOUT ISC Stopband Attenuation DC Offset Voltage Output Voltage Swing (Note 2) Output Short Circuit Current (Note 11) Dynamic Range (Note 12) Additional Magnitude Response Test Points (Note 13) LMF60-50 fIN e 6 kHz fIN e 4 5 kHz LMF60-100 fIN e 3 kHz fIN e 2 25 kHz LMF60-50 LMF60-100 RL e 5 kX Source Sink
ppm C 36
g 60 g 90
dB (Min) mV (Max) mV (Max) a1 2 b1 8 V (Min) V (Max) mA mA dB
a1 4 b2 0
42 09 81
b 9 45 g 0 46 b 0 87 g 0 16 b 9 30 g 0 46 b 0 87 g 0 16
b9 45 g 0 50 b0 87 g 0 20 b9 30 g 0 50 b0 87 g 0 20
dB dB dB dB
3
http
www national com
|
|
