Features Internally trimmed offset voltage: 5 mV max Low input bias current: 50 pA Low input noise current: 0.01 pA/SqrtHz Wide gain bandwidth: 4 MHz High slew rate: 13 V/µs Low supply current: 7.2 mA High input impedance: 1012 Low total harmonic distortion: <=0.02% Low 1/f noise corner: 50 Hz Fast settling time to 0.01%: 2 µs Description The LF147 is a low cost, high speed quad JFET input operational amplifier with an internally trimmed input offset voltage (BI-FET II™ technology). The device requires a low supply current and yet maintains a large gain bandwidth product and a fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF147 is pin compatible with the standard LM148. This feature allows designers to immediately upgrade the overall performance of existing LF148 and LM124 designs. The LF147 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, low input bias current, high input impedance, high slew rate and wide bandwidth. The device has low noise and offset voltage drift.

Also Recommended LM6154▲ Wider Bandwidth,faster Slew Rate, Better Power Consumption

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

Datasheets

Title		Size	Date	Other Language
	LF347 Wide Bandwidth Quad JFET Input Operational Amplifiers	481 Kbytes	13-Sep-04	日本語

Application Notes

Title		Size	Date	Other Language
	AN-256: Application Note 256 Circuitry for Inexpensive Relative Humidity Measurement	119 Kbytes	2-Oct-02
	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-301: Application Note 301 Signal Conditioning for Sophisticated Transducers	579 Kbytes	2-Oct-02
	AN-262: Application Note 262 Applying Dual and Quad FET Op Amps	416 Kbytes	2-Oct-02

Other Technical Documents

Title		Type	Date
	Get More Power Out of Dual or Quad Op-Amps	App Note	2002-10-02

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LF347BN/NOPB LF347BN RoHS Status	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 140 AVNET-EM Worldwide 1284 DIGI-KEY Worldwide 360 FARNELL Europe and Asia 597 MOUSER Worldwide 404 NEWARK Americas 360 RS COMPONENTS Worldwide 255 TAYLOR Americas 1690	$0.83 each at 1K+ pcs	rail of 25
LF347M/NOPB LF347M RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 775 AVNET-EM Worldwide 3739 DIGI-KEY Worldwide 2056 FARNELL Europe and Asia 1119 MOUSER Worldwide 310 NEWARK Americas 425 RS COMPONENTS Worldwide 75 TAYLOR Americas 4210	$0.88 each at 1K+ pcs	rail of 55
LF347MX/NOPB LF347MX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 9765 AVNET-EM Worldwide 14739 DIGI-KEY Worldwide 2500 MOUSER Worldwide 2375 TAYLOR Americas 9765	$0.88 each at 1K+ pcs	reel of 2500
LF347N/NOPB LF347N RoHS Status	MDIP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 548 AVNET-EM Worldwide 5000 BRITESTONE South Korea 16 DIGI-KEY Worldwide 2479 FARNELL Europe and Asia 1506 MOUSER Worldwide 389 NEWARK Americas 203 RS COMPONENTS Worldwide 569 RSL MICRO Asia Pacific 5000 TAYLOR Americas 9948	$0.75 each at 1K+ pcs	rail of 25

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 LF347.

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 LF347 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
LF347BN/NOPB LF347BN	986.751 990.002	MDIP	14	1 1	NA NA	Detail	Download	N/A	NSUZXYYTTE# LF347BN
LF347M/NOPB LF347M	129.551 130.001	SOIC NARROW	14	1 1	260 235	Detail	Download	N/A	NSUZXYTTE# LF347M
LF347MX/NOPB LF347MX	129.551 130.001	SOIC NARROW	14	1 1	260 235	Detail	Download	N/A	NSUZXYTTE# LF347M
LF347N/NOPB LF347N	986.751 990.002	MDIP	14	1 1	NA NA	Detail	Download	N/A	NSUZXYYTTE# LF347N

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 LF347.

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 LF347 is located at RoHS Status.

Design Tools

Title	Size	Date
Amplifiers Selection Guide software for Windows

CAD Symbols and Models Download LF347 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LF347BN	BIFET	0	12875	0	0	1065000	4	302196657
LF347M	BIFET	0	12875	0	0	1065000	4	302196657
LF347MX	BIFET	0	12875	0	0	1065000	4	302196657
LF347N	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 LF347.

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 LF347 is located at RoHS Status.