Datasheet

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LME49720

INPUT

OUTPUT

Note: 1% metal film resistors, 5% polypropylene capacitors

47 k:

3320:

150:

909:

26.1 k:

3.83 k:

100:

150:

22 nF//4.7 nF//500 pF

3320:

47 nF//33 nF

10 pF

LME49720

www.ti.com

SNAS393C –MARCH 2007–REVISED APRIL 2013

LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier

Check for Samples: LME49720

FEATURES

KEY SPECIFICATIONS

• Easily Drives 600Ω Loads

• Power Supply Voltage Range: ±2.5 to ±17V

• Optimized for Superior Audio Signal Fidelity • THD+N (A

= 1, V

OUT

= 3V

RMS

, f

= 1kHz):

• Output Short Circuit Protection – R

= 2kΩ: 0.00003% (typ)

• PSRR and CMRR Exceed 120dB (typ) – R

= 600Ω: 0.00003% (typ)

• SOIC, PDIP, TO-99 Metal Can Packages • Input Noise Density: 2.7nV/√Hz (typ)

• Slew Rate: ±20V/μs (typ)

APPLICATIONS

• Gain Bandwidth Product: 55MHz (typ)

• Ultra High Quality Audio Amplification

• Open Loop Gain (R

= 600Ω): 140dB (typ)

• High Fidelity Preamplifiers

• Input Bias Current: 10nA (typ)

• High Fidelity Multimedia

• Input Offset Voltage: 0.1mV (typ)

• State of the Art Phono Pre Amps

• DC Gain Linearity Error: 0.000009%

• High Performance Professional Audio

DESCRIPTION

• High Fidelity Equalization and Crossover

The LME49720 is part of the ultra-low distortion, low

Networks

noise, high slew rate operational amplifier series

• High Performance Line Drivers

optimized and fully specified for high performance,

• High Performance Line Receivers

high fidelity applications. Combining advanced

• High Fidelity Active Filters

leading-edge process technology with state-of-the-art

circuit design, the LME49720 audio operational

amplifiers deliver superior audio signal amplification

for outstanding audio performance. The LME49720

combines extremely low voltage noise density

(2.7nV/√Hz) with vanishingly low THD+N (0.00003%)

to easily satisfy the most demanding audio

applications.

TYPICAL APPLICATION

Figure 1. Passively Equalized RIAA Phono Preamplifier

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 (36 pages)

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LME49720 www.ti.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com DESCRIPTION (CONTINUED) To ensure that the most challenging loads are driven without compromise, the LME49720 has a high slew rate of ±20V/μs and an output current capability of ±26mA. Further, dynamic range is maximized by an output stage that drives 2kΩ loads to within 1V of either power supply voltage and to within 1.4V when driving 600Ω loads. The LME49720's outstanding CMRR (120dB), PSRR (120dB), and VOS (0.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) (3) (VS = V+ - V-) Power Supply Voltage 36V −65°C to 150°C Storage Temperature Input Voltage (V-) - 0.7V to (V+) + 0.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS FOR THE LME49720 (1)(2) (continued) The following specifications apply for VS = ±15V, RL = 2kΩ, fIN = 1kHz, and TA = 25°C, unless otherwise specified.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS 0.01 THD+N vs Output Voltage VCC = 15V, VEE = –15V RL = 2kΩ 0.01 0.005 0.005 0.002 0.002 0.001 THD+N (%) THD+N (%) 0.001 0.0005 0.0002 0.0005 0.0002 0.0001 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 10m 100m 1 0.00001 10m 10 20 OUTPUT VOLTAGE (V) Figure 4. Figure 5. THD+N vs Output Voltage VCC = 17V, VEE = –17V RL = 2kΩ THD+N vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 2kΩ 0.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) 0.01 THD+N vs Output Voltage VCC = 17V, VEE = –17V RL = 600Ω THD+N vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 600Ω 0.01 0.005 0.005 0.002 0.002 0.001 THD + N (%) THD+N (%) 0.001 0.0005 0.0002 0.0001 0.0005 0.0002 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 10m 100m 1 0.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) THD+N vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS RL = 2kΩ THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 2kΩ 0.01 0.01 0.005 0.005 0.002 0.002 0.001 THD+N (%) THD+N (%) 0.001 0.0005 0.0002 0.0005 0.0002 0.0001 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 20 0.00001 20 50 100 200 500 1k 2k 5k 10k 20k Figure 17.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 10kΩ 0.01 0.01 0.005 0.005 0.002 0.001 THD+N (%) 0.002 0.001 0.0005 0.0002 0.0005 0.0002 0.0001 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 20 0.00001 20 50 100 200 500 1k 2k 5k 10k 20k 50 100 200 500 1k 2k 5k 10k 20k FREQUENCY (Hz) FREQUENCY (Hz) Figure 22. Figure 23.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 IMD (%) IMD (%) 0.01 IMD vs Output Voltage VCC = 17V, VEE = –17V RL = 2kΩ 0.0002 0.0002 0.0001 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 0.000007 100m 200m 500m 1 2 5 0.00001 0.000006 100m 200m 500m 1 10 OUTPUT VOLTAGE (V) Figure 29.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) IMD vs Output Voltage VCC = 12V, VEE = –12V RL = 10kΩ 0.01 0.005 0.002 0.002 0.001 0.001 0.0005 0.0005 IMD (%) IMD (%) 0.01 0.005 0.0002 0.0001 0.0002 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 0.000006 100m 200m 500m 1 2 5 IMD vs Output Voltage VCC = 17V, VEE = –17V RL = 10kΩ 0.00001 0.000006 100m 200m 500m 1 10 OUTPUT VOLTAGE (V) 2 Figure 34. 10 Figure 35.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Crosstalk vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS AV = 0dB, RL = 2kΩ +0 +0 -10 -20 -30 -40 -50 -10 -20 -30 -40 -50 CROSSTALK (dB) CROSSTALK (dB) Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 10VRMS AV = 0dB, RL = 2kΩ -60 -70 -80 -90 -60 -70 -80 -90 -100 -100 -110 -110 -120 -130 20 -120 -130 20 50 100 200 500 1k 2k 5k 10k 20k 5k 10k 20k Figure 40. Figure 41.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 10VRMS AV = 0dB, RL = 600Ω +0 +0 -10 -20 -30 -40 -50 -10 -20 -30 -40 -50 CROSSTALK (dB) CROSSTALK (dB) Crosstalk vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS AV = 0dB, RL = 600Ω -60 -70 -80 -90 -60 -70 -80 -90 -100 -100 -110 -110 -120 -130 20 -120 -130 20 50 100 200 500 1k 2k 5k 10k 20k Figure 47.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Crosstalk vs Frequency VCC = 2.5V, VEE = –2.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) CROSSTALK (dB) +0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 20 Crosstalk vs Frequency VCC = 2.5V, VEE = –2.5V, VOUT = 1VRMS AV = 0dB, RL = 10kΩ 50 100 200 500 1k 2k 5k 10k 20k +0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 20 50 100 200 500 1k 2k FREQUENCY (Hz) Figure 58. Figure 59.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR- vs Frequency VCC = 15V, VEE = –15V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp 0 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 20 PSRR (dB) PSRR (dB) PSRR+ vs Frequency VCC = 15V, VEE = –15V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp 100 1k 10k -110 -120 -130 -140 20 100k 200k 100 100k 200k Figure 65.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR– vs Frequency VCC = 12V, VEE = –12V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp 0 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 20 PSRR (dB) PSRR (dB) PSRR+ vs Frequency VCC = 12V, VEE = –12V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp 100 1k 10k -110 -120 -130 -140 20 100k 200k 100 PSRR (dB) 100k 200k Figure 71.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR+ vs Frequency VCC = 17V, VEE = –17V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp PSRR– vs Frequency VCC = 17V, VEE = –17V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp -110 -120 -130 -140 20 PSRR (dB) PSRR (dB) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 100 1k 10k FREQUENCY (Hz) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 20 100k 200k 10k 100k 200k Figure 76.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR– vs Frequency VCC = 2.5V, VEE = –2.5V RL = 600Ω, f = 200kHz, VRIPPLE = 200mVpp 0 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 20 PSRR (dB) PSRR (dB) PSRR+ vs Frequency VCC = 2.5V, VEE = –2.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) 0 -20 -20 -40 -40 -60 -60 -80 -80 -100 -100 100 1k 10k FREQUENCY (Hz) -120 10 100k 200k 10k 100k 200k Figure 89. CMRR vs Frequency VCC = 17V, VEE = –17V RL = 600Ω CMRR vs Frequency VCC = 2.5V, VEE = –2.5V RL = 600Ω 0 -20 -20 -40 -40 -60 -60 -80 -80 -100 -100 100 1k 10k -120 10 100k 200k 100 1k 10k 100k 200k FREQUENCY (Hz) FREQUENCY (Hz) Figure 90.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) CMRR vs Frequency VCC = 2.5V, VEE = –2.5V RL = 10kΩ 0 -20 -20 -40 -40 CMRR (dB) 0 -60 -60 -80 -80 -100 -100 OUTPUT (Vrms) -120 10 100 1k 10k 100k 200k -120 10 100 1k 10k 100k 200k FREQUENCY (Hz) FREQUENCY (Hz) Figure 94. Figure 95. Output Voltage vs Load Resistance VDD = 15V, VEE = –15V THD+N = 1% Output Voltage vs Load Resistance VDD = 12V, VEE = –12V THD+N = 1% 11.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) 14 Output Voltage vs Supply Voltage RL = 2kΩ, THD+N = 1% Output Voltage vs Supply Voltage RL = 600Ω, THD+N = 1% 12 10 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 12 10 8 6 4 8 6 4 2 2 0 2.5 14 4.5 6.5 0 2.5 8.5 10.5 12.5 14.5 16.5 18.5 4.5 6.5 8.5 10.5 12.5 14.5 16.5 18.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Figure 100. Figure 101.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Full Power Bandwidth vs Frequency 0 160 o GAIN (dB), PHASE LAG ( ) 180 -2 MAGNITUDE (dB) Gain Phase vs Frequency 2 0 dB = 1 VP-P -4 -6 -8 -10 -12 -14 140 120 100 80 60 40 20 -16 0 -18 -20 10 1 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 106. Figure 107. Small-Signal Transient Response AV = 1, CL = 10pF Small-Signal Transient Response AV = 1, CL = 100pF ': 0.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 APPLICATION INFORMATION DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49720 is below the capabilities of all commercially available equipment. This makes distortion measurements just slightly more difficult than simply connecting a distortion meter to the amplifier’s inputs and outputs. The solution, however, is quite simple: an additional resistor.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com Complete shielding is required to prevent induced pick up from external sources. Always check with oscilloscope for power line noise. Figure 111. Noise Measurement Circuit Total Gain: 115 dB @f = 1 kHz Input Referred Noise Voltage: en = V0/560,000 (V) Figure 112. RIAA Preamp Voltage Gain, RIAA Deviation vs Frequency 24 Figure 113.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 TYPICAL APPLICATIONS AV = 34.5 F = 1 kHz En = 0.38 μV A Weighted Figure 114. NAB Preamp Figure 115. NAB Preamp Voltage Gain vs Frequency VO = V1 + V2 − V3 − V4 VO = V1–V2 Figure 116. Balanced to Single Ended Converter Figure 117. Adder/Subtracter Illustration is f0 = 1 kHz Figure 118. Sine Wave Oscillator Figure 119.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com Illustration is f0 = 1 kHz, Q = 10, ABP = 1 Illustration is f0 = 1 kHz Figure 120. Second Order Low Pass Filter (Butterworth) Figure 121. State Variable Filter Figure 122. AC/DC Converter Figure 123. 2 Channel Panning Circuit (Pan Pot) Illustration is: fL = 32 Hz, fLB = 320 Hz fH =11 kHz, fHB = 1.1 kHz Figure 124. Line Driver 26 Figure 125.
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LME49720 www.ti.com SNAS393C – MARCH 2007 – REVISED APRIL 2013 Av = 35 dB En = 0.33 μV S/N = 90 dB f = 1 kHz A Weighted A Weighted, VIN = 10 mV @f = 1 kHz Figure 126. Figure 127. RIAA Preamp Figure 128. Balanced Input Mic Amp Figure 129. 10 Band Graphic Equalizer Illustration is: V0 = 101(V2 − V1) fo (Hz) C1 C2 R1 R2 32 0.12μF 4.7μF 75kΩ 500Ω 64 0.056μF 3.3μF 68kΩ 510Ω 125 0.033μF 1.5μF 62kΩ 510Ω 250 0.015μF 0.82μF 68kΩ 470Ω 500 8200pF 0.39μF 62kΩ 470Ω 1k 3900pF 0.
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LME49720 SNAS393C – MARCH 2007 – REVISED APRIL 2013 www.ti.com REVISION HISTORY 28 Rev Date 1.0 03/30/07 Description Initial release. 1.1 05/03/07 Put the “general note” under the EC table. 1.2 10/22/07 Replaced all the PSRR curves. C 04/05/13 Changed layout of National Data Sheet to TI format.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device LME49720MAX/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) LME49720MAX/NOPB SOIC D 8 2500 349.0 337.0 45.
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