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LME49713

www.ti.com

SNAS386F –SEPTEMBER 2007–REVISED MARCH 2013

LME49713 High Performance, High Fidelity Current Feedback

Audio Operational Amplifier

Check for Samples: LME49713

FEATURES

DESCRIPTION

• Easily Drives 150Ω Loads

The LME49713 is an ultra-low distortion, low noise,

• Optimized for Superior Audio Signal Fidelity

ultra high slew rate current feedback operational

• Output Short Circuit Protection

amplifier optimized and fully specified for high

performance, high fidelity applications. Combining

• 100dB (Typ) PSRR and 88dB (Typ) CMRR

advanced leading-edge process technology with

• SOIC High-Performance and TO-99 Packages

state-of-the-art circuit design, the LME49713 current

feedback operational amplifier delivers superior signal

APPLICATIONS

amplification for outstanding performance. Operating

on a wide supply range of ±5V to ±18V, the

• Ultra High Quality Audio Amplification

LME49713 combines extremely low voltage noise

• High-Fidelity Preamplifiers

density (1.9nV/√Hz) with very low THD+N (0.00036%)

• High-Fidelity Multimedia

to easily satisfy the most demanding applications. To

• State-of-the-Art Phono Pre Amps

ensure that the most challenging loads are driven

without compromise, the LME49713 has a high slew

• High-Performance Professional Audio

rate of ±1900V/μs and an output current capability of

• High-Fidelity Equalization and Crossover

±100mA. Further, dynamic range is maximized by an

Networks

output stage that drives 150Ω loads to within 2.9V of

• High-Performance Line Drivers either power supply voltage.

• High-Performance Line Receivers

The LME49713's outstanding CMRR (88dB), PSRR

(100dB), and V

(0.05mV) give the amplifier

• High-Fidelity Active Filters

excellent operational amplifier DC performance.

KEY SPECIFICATIONS

The LME49713 is available in an 8-lead narrow body

SOIC and an 8-lead TO-99. Demonstration boards

• Power Supply Voltage Range: ±5V to ±18V

are available.

• THD+N, f = 1kHz (A

= 1, R

= 100Ω,

OUT

= 3V

RMS

): 0.0006% (typ)

• THD+N, f = 1kHz (A

= 1, R

= 600Ω,

OUT

= 1.4V

RMS

): 0.00036% (typ)

• Input Noise Density: 1.9nV/√Hz (typ)

• Slew Rate: ±1900V/μs (typ)

• Bandwidth (A

= –1, R

= 2kΩ, R

= 1.2kΩ):

132 MHz (typ)

• Input Bias Current: 1.8μA (typ)

• Input Offset Voltage: 0.05mV (typ)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (18 pages)

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LME49713 www.ti.
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LME49713 SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 www.ti.com CONNECTION DIAGRAMS Figure 1. 8-Lead SOIC (D Package) NC 8 + NC 1 INVERTING INPUT 7 2 NON-INVERTING INPUT V 6 3 5 OUTPUT NC 4 V - Figure 2. 8-Lead TO-99 (LMC Package) These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
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LME49713 www.ti.com SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) (3) Power Supply Voltage (VS = V+ - V-) 38V −65°C to 150°C Storage Temperature Input Voltage (V-) - 0.7V to (V+) + 0.7V Output Short Circuit (4) Continuous Power Dissipation Internally Limited ESD Rating (5) 2000V ESD Rating (6) 200V Junction Temperature 150°C Thermal Resistance θJA (MA) 145°C/W Temperature Range TMIN ≤ TA ≤ TMAX –40°C ≤ TJ ≤ 70°C Supply Voltage Range ±5.
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LME49713 SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 www.ti.com ELECTRICAL CHARACTERISTICS (1) (2) The following specifications apply for the VS = ±15V, RL = 2kΩ, RSOURCE = 10Ω, fIN = 1kHz, and TJ = 25°C, unless otherwise specified. Symbol Parameter Conditions LME49713 Typical (3) Limit (4) Units (Limits) 0.00071 0.00045 % (max) % (max) THD+N Total Harmonic Distortion + Noise AV = 1, VOUT = 3VRMS, RF = 1.2kΩ RL = 100Ω, VOUT = 3VRMS RL = 600Ω, VOUT = 1.4VRMS 0.0006 0.
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LME49713 www.ti.com SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 TYPICAL PERFORMANCE CHARACTERISTICS THD FFT vs Frequency VO = 3VRMS, RL = 100Ω, VS = ±15V, AV = 1 -100 -100 -105 -105 -110 -110 -115 -115 FFT AMPLITUDE (dB) FFT AMPLITUDE (dB) THD FFT vs Frequency VO = 3VRMS, RL = 1kΩ, VS = ±15V, AV = 1 -120 -125 -130 -135 -140 -145 -120 -125 -130 -135 -140 -145 -150 -150 -155 -155 -160 0 2 4 6 8 -160 0 10 12 14 16 18 20 2 4 10 12 14 16 18 20 Figure 4.
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LME49713 SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) THD vs Frequency VO = 3VRMS, RL = 100Ω, SOIC THD vs Frequency VO = 3VRMS, RL = 600Ω, SOIC 0.01 THD+N (%) THD+N (%) 0.01 0.001 0.0001 20 200 2k FREQUENCY (Hz) 0.001 0.0001 20 20k 200 2k FREQUENCY (Hz) Figure 9. Figure 10. THD vs Frequency VO = 3VRMS, RL = 100Ω THD vs Output Voltage VO = 3VRMS, RL = 600Ω 1 20k 10 1 THD+N (%) THD (%) 0.1 0.01 0.1 0.01 0.001 0.001 0.
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LME49713 www.ti.com SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Output Voltage vs Supply Voltage AV = 1, RL = open Supply Current (ICC) vs Power Supply RL = open 20 12 SUPPLY CURRENT (mA) OUTPUT VOLTAGE (V) 10 15 10 5 8 6 4 2 0 0 5 10 15 0 20 5 6 7 8 9 10 11 12 13 14 15 16 17 18 POWER SUPPLY (V) POWER SUPPLY (V) Figure 15. Figure 16.
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LME49713 SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Gain vs Frequency VS = ±15V, G = –10 Gain vs Frequency RF = 800Ω, VS = ±15V 22 21 19 21 15 13 19 GAIN (dB) GAIN (dB) 20 18 17 16 15 82 MHz (Av) = -10 17 9 7 27 MHz RF=3 k: 5 41 MHz RF=2 k: 3 65 MHz RF=1.2 k: 1 82 MHz RF=0.
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LME49713 www.ti.com SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR vs Frequency VS= ±15V, VRIPPLE = 200mVP-P Current Noise vs Frequency VS= ±15V -60 1000 CURRENT NOISE (pA/rt.Hz) -65 PSRR (dB) -70 -75 -80 -85 100 10 -90 -95 1 10 100 1k 10k FREQUENCY (Hz) 100k 1 1M 1 100 1k 10k FREQUENCY (Hz) Figure 27. Figure 28.
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LME49713 SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 www.ti.com APPLICATION INFORMATION GENERAL AMPLIFIER FUNCTION Voltage feedback amplifiers have a small-signal bandwidth that is a function of the closed-loop gain. Conversely, the LME49713 current feedback amplifier features a small-signal bandwidth that is relatively independent of the closed-loop gain. This is shown in Figure 31 where the LME49713’s gain is –1, –2, –5, and –10.
PAGE 11
LME49713 www.ti.com SNAS386F – SEPTEMBER 2007 – REVISED MARCH 2013 CAPACITIVE FEEDBACK It is quite common to place a small lead-compensation capacitor in parallel with a voltage feedback amplifier’s feedback resistance, Rf. This compensation reduces the amplifier’s peaking in the frequency domain and damps the transient response. Whereas this yields the expected results when used with voltage feedback amplifiers, this technique must not be used with current feedback amplifiers.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device LME49713MAX/NOPB Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.5 B0 (mm) K0 (mm) P1 (mm) 5.4 2.0 8.0 W Pin1 (mm) Quadrant 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LME49713MAX/NOPB SOIC D 8 2500 349.0 337.0 45.
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