Features Drives 600Ω loads with full output signal swing Optimized for superior audio signal fidelity Output short circuit protection PSRR and CMRR exceed 100dB (typ) Available in PSOP package Description The LME49724 is an ultra-low distortion, low noise, high slew rate fully-differential operational amplifier optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state of the art circuit design, the LME49724 fully-differential audio operational amplifier delivers superior audio signal amplification for outstanding audio performance. The LME49724 combines extremely low voltage noise density (2.1nV/ √ ^Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49724 has a high slew rate of ±18V/μs and an output current capability of ±80mA. Further, dynamic range is maximized by an output stage that drives 600Ω loads to 52VP-P while operating on a ±15V supply voltage. The LME49724's outstanding CMRR (102dB), PSRR (125dB), and VOS (0.2mV) results in excellent operational amplifier DC performance. The LME49724 has a wide supply range of ±2.5V to ±18V. Over this supply range the LME49724’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49724 is unity gain stable. This Fully-Differential Audio Operational Amplifier achieves outstanding AC performance while driving complex loads with capacitive values as high as 100pF. Key Specification ■  Power Supply Voltage Range ±2.5V to ±18V ■  THD+N  (AV = 1, VOUT = 3VRMS, fIN = 1kHz)    RL = 2kΩ 0.00003% (typ)  RL = 600Ω 0.00003% (typ) ■  Input Noise Density 2.1nV/ √ ^Hz (typ) ■  Slew Rate ±18V/μs (typ) ■  Gain Bandwidth Product 50MHz (typ) ■  Open Loop Gain (RL = 600Ω) 125dB (typ) ■  Input Bias Current 60nA (typ) ■  Input Offset Voltage 0.2mV (typ) ■  DC Gain Linearity Error 0.000009% Applications Ultra high quality audio amplification High fidelity preamplifiers and active filters Simple single-ended to differential conversion State of the art D-to-A converters State of the art A-to-D input amplifiers Professional Audio High fidelity equalization and crossover networks High performance line drivers and receivers

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Datasheets

Title		Size	Date	Other Language
	LME49724 High Performance, High Fidelity, Fully-Differential Audio Operational Amplifier	687 Kbytes	12-Nov-08

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LME49724MR/NOPB LME49724MR RoHS Status	PSOP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 864 AVNET-EM Worldwide 82 DIGI-KEY Worldwide 1280 KEIKONG Asia Pacific 25 MOUSER Worldwide 237 TAYLOR Americas 864	$1.47 each at 1K+ pcs	rail of 95
LME49724MRX/NOPB LME49724MRX RoHS Status	PSOP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0 KEIKONG Asia Pacific 2500	$1.47 each at 1K+ pcs	reel of 2500

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 LME49724.

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 LME49724 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
LME49724MR/NOPB LME49724MR	77.907 77.907	PSOP	8	3 3	260 260	Detail	Download	N/A	NSXYTT L49724 MR
LME49724MRX/NOPB LME49724MRX	77.907 77.907	PSOP	8	3 3	260 260	Detail	Download	N/A	NSXYTT L49724 MR

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 LME49724.

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 LME49724 is located at RoHS Status.

CAD Symbols and Models Download LME49724 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LME49724MR	VIP III	0	16160	0	0	1302500	3	369587931
LME49724MRX	VIP III	0	16160	0	0	1302500	3	369587931

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 LME49724.

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 LME49724 is located at RoHS Status.