Features Internally trimmed offset voltage:  1 mV (max) Input offset voltage drift: 10 μV/°C (max) Low input bias current: 50 pA Low input noise current:  Wide gain bandwidth: 3 MHz (min) High slew rate: 10V/μs (min) Low supply current: 1.8 mA/Amplifier High input impedance: 10 12Ω Low total harmonic distortion   ≤0.02% Low 1/f noise corner: 50 Hz Fast settling time to 0.01%: 2 μs Description These devices are low cost, high speed, JFET input operational amplifiers with very low input offset voltage and guaranteed input offset voltage drift. They require low supply current yet maintain a large gain bandwidth product and fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF412 dual is pin compatible with the LM1558, allowing designers to immediately upgrade the overall performance of existing designs. These amplifiers may be used in applications such as high speed integrators, fast D/A converters, sample and hold circuits and many other circuits requiring low input offset voltage and drift, low input bias current, high input impedance, high slew rate and wide bandwidth.

Also Recommended LM8272▲ Wider Bandwidth,lower Power Consumption,RRIO, Unlimited Cap Drive,smaller Package

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance click for larger image

Datasheets

Title		Size	Date	Other Language
	LF412 Low Offset, Low Drift Dual JFET Input Operational Amplifier	1326 Kbytes	28-Jan-10	日本語

Application Notes

Title		Size	Date	Other Language
	AN-447: Application Note 447	76 Kbytes	4-Nov-95
	AN-301: Application Note 301 Signal Conditioning for Sophisticated Transducers	579 Kbytes	2-Oct-02
	AN-272: Application Note 272 Op Amp Booster Designs	382 Kbytes	2-Oct-02
	AN-1485: Application Note 1485 The Effect of Heavy Loads on the Accuracy and Linearity of Operational Amplifier Circuits	752 Kbytes	15-Sep-08

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LF412ACN/NOPB LF412ACN RoHS Status	MDIP	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 449 AVNET-EM Worldwide 1069 DIGI-KEY Worldwide 1240 FARNELL Europe and Asia 208 MOUSER Worldwide 473 NEWARK Americas 634 RS COMPONENTS Worldwide 75 TAYLOR Americas 1904	$1.90 each at 1K+ pcs	rail of 40
LF412CN/NOPB LF412CN RoHS Status	MDIP	Full production Lead Time: 12 weeks	Distributor Region Qty ARROW Worldwide 1380 AVNET-EM Worldwide 647 BRITESTONE South Korea 40 DIGI-KEY Worldwide 2002 FARNELL Europe and Asia 1932 MOUSER Worldwide 1278 NEWARK Americas 1664 RS COMPONENTS Worldwide 1192 RSL MICRO Asia Pacific 33400 TAYLOR Americas 2511	$0.54 each at 1K+ pcs	rail of 40
LF412MH/NOPB LF412MH RoHS Status	TO-5	Full production Lead Time: 16 weeks	Distributor Region Qty ARROW Worldwide 280 DIGI-KEY Worldwide 266 MOUSER Worldwide 443 TAYLOR Americas 284	$5.40 each at 1K+ pcs	box of 500
LF412 MWC RoHS Status		Full production Lead Time: 6 weeks	Contact your distributor	CALL	wafer jar of N/A

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LF412A MDC	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LF412A MWC	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LF412CH	LF412MH/883	NATIONAL SEMICONDUCTOR	01 Dec 2009
LF412MJ-SMD	NONE	NONE	06 Sep 2000

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 LF412.

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 LF412 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
LF412ACN/NOPB LF412ACN	508.252 510.002	MDIP	8	1 1	NA NA	Detail	Download	spice file	NSUZXYTTE# LF 412ACN
LF412CN/NOPB LF412CN	508.252 510.002	MDIP	8	1 1	NA NA	Detail	Download	spice file	NSUZXYTTE# LF 412CN
LF412MH/NOPB LF412MH	984.757 985.927	TO-5	8	1 1	NA NA	Detail	Download	spice file	NSZXYTTE# LF412MH
LF412 MWC	32300	Wafer				spice file	-

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 LF412.

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 LF412 is located at RoHS Status.

Design Tools

Title	Size	Date
Amplifiers Selection Guide software for Windows

CAD Symbols and Models Download LF412 CAD Symbols

Models spice file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LF412ACN	BIFET	0	12875	0	0	1065000	4	302196657
LF412CN	BIFET	0	12875	0	0	1065000	4	302196657

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

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 LF412.

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 LF412 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LF412A MDC	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LF412A MWC	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LF412CH	LF412MH/883	NATIONAL SEMICONDUCTOR	01 Dec 2009
LF412MJ-SMD	NONE	NONE	06 Sep 2000