Features Wide 4V to 15V power supply range Operation up to 100 kHz Low offset voltage: typically (50:1 or 100:1 mode): Vos1 = ±5 mV Vos2 = ±15 mV Vos3 = ±15 mV Low crosstalk -60 dB Clock to center frequency ratio accuracy ±0.2% typical f0 × Q range up to 1.8 MHz Pin-compatible with MF10 Description The LMF100 consists of two independent general purpose high performance switched capacitor filters. With an external clock and 2 to 4 resistors, various second-order and first-order filtering functions can be realized by each filter block. Each block has 3 outputs. One output can be configured to perform either an allpass, highpass, or notch function. The other two outputs perform bandpass and lowpass functions. The center frequency of each filter stage is tuned by using an external clock or a combination of a clock and resistor ratio. Up to a 4th-order biquadratic function can be realized with a single LMF100. Higher order filters are implemented by simply cascading additional packages, and all the classical filters (such as Butterworth, Bessel, Elliptic, and Chebyshev) can be realized. The LMF100 is fabricated on National Semiconductor's high performance analog silicon gate CMOS process, LMCMOS™. This allows for the production of a very low offset, high frequency filter building block. The LMF100 is pin-compatible with the industry standard MF10, but provides greatly improved performance.

Datasheets

Title		Size	Date	Other Language
	LMF100 High Performance Dual Switched Capacitor Filter	868 Kbytes	12-Jul-99	日本語

Application Notes

Title		Size	Date	Other Language
	AN-779: Application Note 779 A Basic Introduction to Filters - Active, Passive and Switched-Capacitor	512 Kbytes	21-Apr-10	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMF100CIWM/NOPB LMF100CIWM RoHS Status	SOIC WIDE	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 44 AVNET-EM Worldwide 160 DIGI-KEY Worldwide 635 FARNELL Europe and Asia 51 MOUSER Worldwide 64 NEWARK Americas 233 TAYLOR Americas 80	$2.31 each at 1K+ pcs	rail of 36
LMF100CIWMX/NOPB LMF100CIWMX RoHS Status	SOIC WIDE	Full production Lead Time: 8 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$2.31 each at 1K+ pcs	reel of 1000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMF100ACN	NONE	NONE	08 Sep 1998
LMF100AE/883	NONE	NONE	08 Sep 1998
LMF100AJ/883	NONE	NONE	08 Sep 1998
LMF100CCN	LMF100CIWM	NATIONAL SEMICONDUCTOR	16 Nov 2008
LMF100CIN	NONE	NONE	08 Sep 1998

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMF100.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMF100 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMF100CIWM/NOPB LMF100CIWM	518.972 520.002	SOIC WIDE	20	3 2A	260 220	Detail	N/A	N/A	NSUZXYTTE# LMF100 CIWM
LMF100CIWMX/NOPB LMF100CIWMX	518.972 520.002	SOIC WIDE	20	3 2A	260 220	Detail	N/A	N/A	NSUZXYTTE# LMF100 CIWM

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMF100.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMF100 is located at RoHS Status.

CAD Symbols and Models N/A

Models N/A

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMF100ACN	NONE	NONE	08 Sep 1998
LMF100AE/883	NONE	NONE	08 Sep 1998
LMF100AJ/883	NONE	NONE	08 Sep 1998
LMF100CCN	LMF100CIWM	NATIONAL SEMICONDUCTOR	16 Nov 2008
LMF100CIN	NONE	NONE	08 Sep 1998