Features Advantages Replace expensive hybrid and module FET op amps Rugged JFETs allow blow-out free handling compared with MOSFET input devices Excellent for low noise applications using either high or low source impedance-very low 1/f corner Offset adjust does not degrade drift or common-mode rejection as in most monolithic amplifiers New output stage allows use of large capacitive loads (5,000 pF) without stability problems Internal compensation and large differential input voltage capability Description These are the first monolithic JFET input operational amplifiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar transistors (BI-FET™ Technology). These amplifiers feature low input bias and offset currents/low offset voltage and offset voltage drift, coupled with offset adjust which does not degrade drift or common-mode rejection. The devices are also designed for high slew rate, wide bandwidth, extremely fast settling time, low voltage and current noise and a low 1/f noise corner. Applications Precision high speed integrators Fast D/A and A/D converters High impedance buffers Wideband, low noise, low drift amplifiers Logarithmic amplifiers Photocell amplifiers Sample and Hold circuits

Also Recommended LMV712▲ Rail-to-rail Input & Output, Shutdown

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

Datasheets

Title		Size	Date	Other Language
	LF356 JFET Input Operational Amplifiers	1079 Kbytes	17-Dec-01	日本語

Application Notes

Title		Size	Date	Other Language
	AN-258: Application Note 258 Data Acquisition Using the ADC0816 and ADC0817 8-Bit A/D Converter with On-Chip 16 Channel Multiplexer	683 Kbytes	4-Oct-04
	AN-447: Application Note 447	76 Kbytes	4-Nov-95
	AN-263: Application Note 263 Sine Wave Generation Techniques	350 Kbytes	26-May-09
	AN-275: Application Note 275 CMOS D/A Converters Match Most Microprocessors	127 Kbytes	2-May-04
	AN-292: Application Note 292 Applications of the LM3524 Pulse-Width-Modulator	239 Kbytes	3-Oct-02
	AN-293: Application Note 293 Control Applications of CMOS DACs	385 Kbytes	4-Oct-04
	AN-311: Application Note 311 Theory and Applications of Logarithmic Amplifiers	258 Kbytes	2-Oct-02
	AN-253: Application Note 253 LH0024 and LH0032 High Speed Op Amp Applications	461 Kbytes	2-May-04
	AN-480: Application Note 480	181 Kbytes	4-Nov-95
	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

Other Technical Documents

Title		Type	Date
	Get Fast Stable Response From Improved Unity-Gain Followers	App Note	2002-10-02

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LF356M/NOPB LF356M RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 457 AVNET-EM Worldwide 29 DIGI-KEY Worldwide 1446 FARNELL Europe and Asia 653 MOUSER Worldwide 1404 NEWARK Americas 1097 RS COMPONENTS Worldwide 445 TAYLOR Americas 457	$0.31 each at 1K+ pcs	rail of 95
LF356MX/NOPB LF356MX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 19033 AVNET-EM Worldwide 7500 DIGI-KEY Worldwide 0 MOUSER Worldwide 2430 TAYLOR Americas 19033	$0.31 each at 1K+ pcs	reel of 2500
LF356N/NOPB LF356N RoHS Status	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 2050 AVNET-EM Worldwide 298 DIGI-KEY Worldwide 2252 FARNELL Europe and Asia 3722 MOUSER Worldwide 2394 NEWARK Americas 1235 RS COMPONENTS Worldwide 1199 RSL MICRO Asia Pacific 40000 TAYLOR Americas 6291	$0.32 each at 1K+ pcs	rail of 40
LF356H/NOPB LF356H RoHS Status	TO-99	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 330 AVNET-EM Worldwide 478 DIGI-KEY Worldwide 375 FARNELL Europe and Asia 1016 MOUSER Worldwide 462 TAYLOR Americas 330	$4.03 each at 1K+ pcs	box of 500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LF356BH	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LF356BM	NONE	NONE	10 Mar 1998
LF356BMX	NONE	NONE	10 Mar 1998
LF356BN	NONE	NONE	10 Mar 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 LF356.

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 LF356 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
LF356M/NOPB LF356M	69.761 70.001	SOIC NARROW	8	1 1	260 235	Detail	Download	spice file	NSZXTT LF356 M
LF356MX/NOPB LF356MX	69.761 70.001	SOIC NARROW	8	1 1	260 235	Detail	Download	spice file	NSZXTT LF356 M
LF356N/NOPB LF356N	508.252 510.002	MDIP	8	1 1	NA NA	Detail	Download	spice file	NSUZXYTTE# LF 356N
LF356H/NOPB LF356H	969.917 971.007	TO-99	8	1 1	NA NA	Detail	Download	spice file	NSZXYTTE# LF356H

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 LF356.

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 LF356 is located at RoHS Status.

Design Tools

Title	Size	Date
Amplifiers Selection Guide software for Windows

CAD Symbols and Models Download LF356 CAD Symbols

Models spice file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LF356M	BIFET	0	12875	0	0	1065000	4	302196657
LF356MX	BIFET	0	12875	0	0	1065000	4	302196657
LF356N	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 LF356.

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 LF356 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LF356BH	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LF356BM	NONE	NONE	10 Mar 1998
LF356BMX	NONE	NONE	10 Mar 1998
LF356BN	NONE	NONE	10 Mar 1998