Features (Typical unless otherwise noted) Rail-to-Rail input common-mode voltage range, guaranteed over temperature Rail-to-Rail output swing within 20 mV of supply rail, 100 k load Operates from 5V to 15V supply Excellent CMRR and PSRR 82 dB Ultra low input current 150 fA High voltage gain (RL = 100 k) 120 dB Low supply current (@ VS = 5V) 500 µA/Amplifier Low offset voltage drift 1.0 µV/°C Description The LMC6492/LMC6494 amplifiers were specifically developed for single supply applications that operate from -40°C to +125°C. This feature is well-suited for automotive systems because of the wide temperature range. A unique design topology enables the LMC6492/LMC6494 common-mode voltage range to accommodate input signals beyond the rails. This eliminates non-linear output errors due to input signals exceeding a traditionally limited common-mode voltage range. The LMC6492/LMC6494 signal range has a high CMRR of 82 dB for excellent accuracy in non-inverting circuit configurations. The LMC6492/LMC6494 rail-to-rail input is complemented by rail-to-rail output swing. This assures maximum dynamic signal range which is particularly important in 5V systems. Ultra-low input current of 150 fA and 120 dB open loop gain provide high accuracy and direct interfacing with high impedance sources. Applications Automotive transducer amplifier Pressure sensor Oxygen sensor Temperature sensor Speed sensor

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

Datasheets

Title		Size	Date	Other Language
	LMC6494 Quad CMOS Rail-to-Rail Input and Output Operational Amplifier	1199 Kbytes	11-Nov-04	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMC6494AEM/NOPB LMC6494AEM RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 330 AVNET-EM Worldwide 110 DIGI-KEY Worldwide 1409 FARNELL Europe and Asia 243 MOUSER Worldwide 165 NEWARK Americas 3 TAYLOR Americas 330	$2.50 each at 1K+ pcs	rail of 55
LMC6494AEMX/NOPB LMC6494AEMX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 2500 DIGI-KEY Worldwide 0 TAYLOR Americas 2500	$2.50 each at 1K+ pcs	reel of 2500
LMC6494BEM/NOPB LMC6494BEM RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 134 FARNELL Europe and Asia 578 MOUSER Worldwide 271	$1.63 each at 1K+ pcs	rail of 55
LMC6494BEMX/NOPB LMC6494BEMX RoHS Status	SOIC NARROW	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$1.63 each at 1K+ pcs	reel of 2500

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMC6494AEN	NONE	NONE	04 Dec 2001
LMC6494BEN	NONE	NONE	04 Dec 2001

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 LMC6494.

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 LMC6494 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
LMC6494AEM/NOPB LMC6494AEM	129.551 130.001	SOIC NARROW	14	1 1	260 235	Detail	Download	spice file	NSUZXYTTE# LMC6494 AEM
LMC6494AEMX/NOPB LMC6494AEMX	129.551 130.001	SOIC NARROW	14	1 1	260 235	Detail	Download	spice file	NSUZXYTTE# LMC6494 AEM
LMC6494BEM/NOPB LMC6494BEM	129.551 130.001	SOIC NARROW	14	1 1	260 235	Detail	Download	spice file	NSUZXYTTE# LMC6494 BEM
LMC6494BEMX/NOPB LMC6494BEMX	129.551 130.001	SOIC NARROW	14	1 1	260 235	Detail	Download	spice file	NSUZXYTTE# LMC6494 BEM

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 LMC6494.

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 LMC6494 is located at RoHS Status.

Design Tools

Title	Size	Date
Amplifiers Selection Guide software for Windows

CAD Symbols and Models Download LMC6494 CAD Symbols

Models spice file

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMC6494AEM	P2CMOS	0	50860	0	1	4503500	2	578995367
LMC6494AEMX	P2CMOS	0	50860	0	1	4503500	2	578995367
LMC6494BEM	P2CMOS	0	50860	0	1	4503500	2	578995367
LMC6494BEMX	P2CMOS	0	50860	0	1	4503500	2	578995367

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 LMC6494.

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 LMC6494 is located at RoHS Status.

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LMC6494AEN	NONE	NONE	04 Dec 2001
LMC6494BEN	NONE	NONE	04 Dec 2001