Features Rail-to-rail output Easily drives 2kΩ loads to within 4mV of each power supply voltage rail Optimized for superior audio signal fidelity Output short circuit protection High output drive (>300mA) Available in mini-SOIC exposed-DAP package Description The LME49726 is a low distortion, low noise rail-to-rail output audio operational amplifier optimized and fully specified for high performance, high fidelity applications. The LME49726 delivers superior audio signal amplification for outstanding audio performance. The LME49726 has a very low THD+N to easily satisfy demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49726 provides output current greater than 300mA at 5V. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 4mV of either power supply voltage. The LME49726 has a supply range of 2.5V to 5.5V. Over this supply range the LME49726’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49726 is unity gain stable. Key Specification ■  Power Supply Voltage Range 2.5V to 5.5V ■  Quiescent Current per Amplifier   at 5V 0.7mA (typ) ■  THD+N, AV = 1,  fIN = 1kHz, RL = 10kΩ    (VOUT = 3.5VP-P, VDD = 5.0V) 0.00008% (typ)  (VOUT = 1.5VP-P, VDD = 2.5V) 0.00002% (typ) ■  Equivalent Input Noise  (f = 10k) 8.3nV/ √ ^Hz (typ) ■  Slew Rate ±3.7V/μs (typ) ■  Gain Bandwidth Product 6.25MHz (typ) ■  Open Loop Gain (RL = 10kΩ) 120dB (typ) ■  Input Bias Current 0.2pA (typ) ■  Input Offset Voltage 0.5mV (typ) ■  PSRR (DC) 104dB (typ) Applications Portable audio amplification Preamplifiers and multimedia Equalization and crossover networks Line drivers and receivers Active filters DAC I–V converter gain stage ADC front-end signal conditioning

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

Parameters Values THD 0.00008 % PSRR 104 dB Supply Min 2.5 Volt Single/Dual/Quad Dual Special Features Rail to Rail, low distortion, low noise THD Conditions Av=-1, Vout=1.5Vpp, Vdd=2.5V, RL=10k PSRR Conditions 2.5 to 5.5 V, Vcm=0, Vdd/2 User Supply 5 Volt Supply Current per Amplifier 0.64 mA Supply Max 6 Volt Shut down No Voltage Noise 6.9 nV/root(Hz) Supply Range +1.4 - +3.6 V Offset Voltage, typ 0.5 mV Gain Bandwidth 6.25 MHz Slew Rate 3.7 Volts/usec CMRR 95 dB CMRR Conditions 0.1 V < Vdd < 1.6V Temperature Min -40 deg C Temperature Max 85 deg C Input OutputType R-R In and Out Offset Voltage max, 25C 2.25 mV

Datasheets

Title		Size	Date	Other Language
	LME49726 High Current, Low Distortion Rail-to-Rail Output Audio Operational Amplifier	545 Kbytes	19-Jul-11

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LME49726MY/NOPB RoHS Status	MINI SOIC EXP PAD	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 AVNET-EM Worldwide 2000 DIGI-KEY Worldwide 8796 TAYLOR Americas 1000	$0.75 each at 1K+ pcs	reel of 1000
LME49726MYX/NOPB LME49726MYX RoHS Status	MINI SOIC EXP PAD	Full production Lead Time: 8 weeks	Distributor Region Qty ARROW Worldwide 3500 DIGI-KEY Worldwide 0 TAYLOR Americas 3500	$0.75 each at 1K+ pcs	reel of 3500

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 LME49726.

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 LME49726 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LME49726MYBD	evaluation board	Full production	Contact your distributor	CALL	N/A

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LME49726MY/NOPB	29.851 29.851	MINI SOIC EXP PAD	8	1	260	Detail	Download	N/A	ZXTT ZA3
LME49726MYX/NOPB LME49726MYX	29.851 29.851	MINI SOIC EXP PAD	8	1 1	260 260	Detail	Download	N/A	ZXTT ZA3

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 LME49726.

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 LME49726 is located at RoHS Status.

CAD Symbols and Models Download LME49726 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LME49726MY	CMOS7	0	21301	0	0	1584000	3	449464325
LME49726MYX	CMOS7	0	21301	0	0	1584000	3	449464325

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 LME49726.

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 LME49726 is located at RoHS Status.