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LME49870

www.ti.com

SNAS413C –SEPTEMBER 2007–REVISED APRIL 2013

LME49870 44V Single High Performance, High Fidelity Audio Operational Amplifier

Check for Samples: LME49870

FEATURES

DESCRIPTION

The LME49870 is part of the ultra-low distortion, low

• Easily Drives 600Ω Loads

noise, high slew rate operational amplifier series

• Optimized for Superior Audio Signal Fidelity

optimized and fully specified for high performance,

• Output Short Circuit Protection

high fidelity applications. Combining advanced

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

• PSRR and CMRR Exceed 120dB (Typ)

circuit design, the LME49870 audio operational

amplifier delivers superior audio signal amplification

APPLICATIONS

for outstanding audio performance. The LME49870

• High Quality Audio Amplification

combines extremely low voltage noise density

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

• High Fidelity Preamplifiers, Phono Preamps,

to easily satisfy the most demanding audio

and Multimedia

applications. To ensure that the most challenging

• High Performance Professional Audio

loads are driven without compromise, the LME49870

• High Fidelity Equalization and Crossover

has a high slew rate of ±20V/μs and an output current

Networks with Active Filters

capability of ±26mA. Further, dynamic range is

maximized by an output stage that drives 2kΩ loads

• High Performance Line Drivers and Receivers

to within 1V of either power supply voltage and to

• Low Noise Industrial Applications Including

within 1.4V when driving 600Ω loads.

Test, Measurement, and Ultrasound

The LME49870's outstanding CMRR (120dB), PSRR

(120dB), and V

(0.1mV) give the amplifier excellent

KEY SPECIFICATIONS

operational amplifier DC performance.

• Power Supply Voltage Range: ±2.5V to ±22V

The LME49870 has a wide supply range of ±2.5V to

• THD+N (A

= 1, V

OUT

= 3V

RMS

, f

= 1kHz)

±22V. Over this supply range the LME49870

– R

= 2kΩ: 0.00003% (Typ)

maintains excellent common-mode rejection, power

supply rejection, and low input bias current. The

– R

= 600Ω: 0.00003% (Typ)

LME49870 is unity gain stable. This Audio

• Input Noise Density: 2.7nV/√Hz (Typ)

Operational Amplifier achieves outstanding AC

• Slew Rate: ±20V/μs (Typ)

performance while driving complex loads with values

as high as 100pF.

• Gain Bandwidth Product: 55MHz (Typ)

• Open Loop Gain (R

= 600Ω): 140dB (Typ)

The LME49870 is available in 8–lead narrow body

SOIC. Demonstration boards are available for each

• Input Bias Current: 10nA (Typ)

package.

• Input Offset Voltage: 0.1mV (Typ)

• DC Gain Linearity Error: 0.000009%

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 (37 pages)

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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 LME49870 44V Single High Performance, High Fidelity Audio Operational Amplifier Check for Samples: LME49870 FEATURES DESCRIPTION • • • • The LME49870 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com TYPICAL APPLICATION 150: 3320: 150: 3320: 26.1 k: + 909: - - LME49870 + INPUT LME49870 22 nF//4.7 nF//500 pF 10 pF 47 k: + 3.83 k: + 100: OUTPUT 47 nF//33 nF Note: 1% metal film resistors, 5% polypropylene capacitors Figure 1. Passively Equalized RIAA Phono Preamplifier CONNECTION DIAGRAM NC -IN +IN V- NC - V+ + VOUT NC Figure 2. Package Number — D0008A These devices have limited built-in ESD protection.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) (3) Power Supply Voltage (VS = V+ - V-) 46V −65°C to 150°C Storage Temperature Input Voltage (V-) - 0.7V to (V+) + 0.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS FOR THE LME49870 (1) The following specifications apply for VS = ±18V and ±22V, RL = 2kΩ, RSOURCE = 10Ω, fIN = 1kHz, TA = 25°C, unless otherwise specified. Symbol THD+N Parameter Total Harmonic Distortion + Noise Conditions LME49870 Typical (2) Limit (3) AV = 1, VOUT = 3Vrms RL = 2kΩ RL = 600Ω 0.00003 0.00003 0.00009 AV = 1, VOUT = 3VRMS Two-tone, 60Hz & 7kHz 4:1 0.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 ELECTRICAL CHARACTERISTICS FOR THE LME49870(1) (continued) The following specifications apply for VS = ±18V and ±22V, RL = 2kΩ, RSOURCE = 10Ω, fIN = 1kHz, TA = 25°C, unless otherwise specified.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com 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 3. Figure 4. THD+N vs Output Voltage VCC = 22V, VEE = –22V RL = 2kΩ THD+N vs Output Voltage VCC = 2.5V, VEE = –2.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) 0.01 THD+N vs Output Voltage VCC = 22V, VEE = –22V 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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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com 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 0.0005 % 0.001 0.0005 0.0002 0.0002 0.0001 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 20 50 100 200 500 1k 2k 0.00001 20 5k 10k 20k Hz 5k 10k 20k Hz Figure 15. Figure 16.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) THD+N vs Frequency VCC = 15V, VEE = –15V, VOUT = 3VRMS RL = 10kΩ THD+N vs Frequency VCC = 12V, VEE = –12V, VOUT = 3VRMS RL = 10kΩ 0.01 0.01 0.005 0.005 0.002 0.002 % 0.001 0.0005 % 0.001 0.0005 0.0002 0.0002 0.0001 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 20 50 100 200 500 1k 2k 5k 10k 20k 0.00001 20 Hz 5k 10k 20k Hz Figure 21. Figure 22.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) 0.01 IMD vs Output Voltage VCC = 2.5V, VEE = –2.5V RL = 2kΩ 0.01 0.005 0.005 0.002 0.002 0.001 0.001 0.0005 IMD (%) IMD (%) IMD vs Output Voltage VCC = 15V, VEE = –15V RL = 600Ω 0.0005 0.0002 0.0001 0.0002 0.0001 0.00005 0.00005 0.00002 0.00002 0.00001 100m 200m 500m 1 2 5 0.00001 0.000006 100m 200m 500m 1 10 Figure 28.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 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 = 22V, VEE = –22V RL = 10kΩ 0.00001 0.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR+ vs Frequency VCC = 2.5V, VEE = –2.5V RL = 2kΩ, 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 = 22V, VEE = –22V RL = 2kΩ, VRIPPLE = 200mVpp 100 1k 10k -110 -120 -130 -140 20 100k 200k 100 Figure 46. PSRR- vs Frequency VCC = 2.5V, VEE = –2.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR+ vs Frequency VCC = 15V, VEE = –15V RL = 10kΩ, 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 = –2.5V RL = 600Ω, VRIPPLE = 200mVpp 100 1k -110 -120 -130 -140 20 100k 200k 10k 100 Figure 58.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) PSRR+ vs Frequency VCC = 22V, VEE = –22V RL = 10kΩ, 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 = 10kΩ, VRIPPLE = 200mVpp 100 1k 10k -110 -120 -130 -140 20 100k 200k 100 1k Figure 64.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) 0 -20 -20 -40 -40 CMRR (dB) 0 -60 -60 -80 -80 -100 -100 -120 10 CMRR (dB) CMRR vs Frequency VCC = 22V, VEE = –22V RL = 2kΩ 100 1k 10k -120 10 100k 200k 100k 200k Figure 70. CMRR vs Frequency VCC = 2.5V, VEE = –2.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) CMRR vs Frequency VCC = 15V, VEE = –15V RL = 10kΩ 0 0 -20 -20 -40 -40 CMRR (dB) CMRR (dB) CMRR vs Frequency VCC = 2.5V, VEE = –2.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Output Voltage vs Load Resistance VCC = 12V, VEE = –12V THD+N = 1% Output Voltage vs Load Resistance VCC = 22V, VEE = –22V THD+N = 1% 9.5 13.5 13.0 9.0 OUTPUT (Vrms) OUTPUT (Vrms) 12.5 8.5 8.0 12.0 11.5 11.0 7.5 10.5 7.0 500 600 800 2k 5k 10k LOAD RESISTANCE (:) 10.0 500 600 800 2k 5k 10k LOAD RESISTANCE (:) Figure 81. Figure 82.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com TYPICAL PERFORMANCE CHARACTERISTICS (continued) Power Supply Current vs Total Power Supply Voltage RL = 2kΩ 5.0 POWER SUPPLY CURRENT (mA) POWER SUPPLY CURRENT (mA) 5.0 4.8 4.6 4.4 4.2 4.0 3.8 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.6 5 10 15 20 25 30 35 40 45 50 5 TOTAL POWER SUPPLY VOLTAGE (V) 5.0 10 15 20 25 30 35 40 45 50 TOTAL POWER SUPPLY VOLTAGE (V) Figure 87. Figure 88.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS (continued) Small-Signal Transient Response AV = 1, CL = 10pF Small-Signal Transient Response AV = 1, CL = 100pF ': 0.00s ': 0.00s ': 0.00V @: -1.01 Ps @: -80.0 mV 1 ': 0.00V @: -1.01 Ps @: -80.0 mV 1 Ch1 50.0 mV M 200 ns A Ch1 50.40% 2.00 mV Figure 92. Ch1 50.0 mV M 200 ns A Ch1 50.40% 2.00 mV Figure 93.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com APPLICATION INFORMATION DISTORTION MEASUREMENTS The vanishingly low residual distortion produced by LME49870 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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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 Complete shielding is required to prevent induced pick up from external sources. Always check with oscilloscope for power line noise. Figure 95. Noise Measurement Circuit - Total Gain: 115 dB @f = 1 kHz Input Referred Noise Voltage: en = V0/560,000 (V) Figure 96. RIAA Preamp Voltage Gain, RIAA Deviation vs Frequency Figure 97.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com TYPICAL APPLICATIONS AV = 34.5 F = 1 kHz En = 0.38 μV A Weighted Figure 98. NAB Preamp Figure 99. NAB Preamp Voltage Gain vs Frequency VO = V1 + V2 − V3 − V4 VO = V1–V2 Figure 100. Balanced to Single Ended Converter Figure 101. Adder/Subtracter Figure 102.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 Illustration is f0 = 1 kHz Illustration is f0 = 1 kHz Figure 103. Second Order High Pass Filter (Butterworth) Figure 104. Second Order Low Pass Filter (Butterworth) Illustration is f0 = 1 kHz, Q = 10, ABP = 1 Figure 105. State Variable Filter Figure 106.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com Figure 107. 2 Channel Panning Circuit (Pan Pot) Figure 108. Line Driver Illustration is: fL = 32 Hz, fLB = 320 Hz fH =11 kHz, fHB = 1.1 kHz Figure 109. Figure 110.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 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 111. RIAA Preamp Illustration is: V0 = 101(V2 − V1) Figure 112.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com Figure 113. 10 Band Graphic Equalizer 28 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 0.22μF 68kΩ 470Ω 2k 2000pF 0.1μF 68kΩ 470Ω 4k 1100pF 0.056μF 62kΩ 470Ω 8k 510pF 0.022μF 68kΩ 510Ω 16k 330pF 0.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 +15V 0.1 PF 1 k: 1 k: - INPUT LME49870 + 200: This application uses two op amps in parallel for higher current drive. 200: To Headphone LME49870 + 0.1 PF -15V Figure 114. Headphone Amplifier 20 pF 9.76 k: 500: BALANCE TRIM 10 k: - INPUT 4.99 k: D1 LME49870 OUTPUT + S1 D2 S2 4.75 k: TTL 4.75 k: DG188 1 k: IN OFFSET TRIM +VCC Figure 115.
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LME49870 SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 www.ti.com 0.1 PF 100: 100 k: OUTPUT LME49870 + Dexter 1M Thermopile Detector NOTE: Use metal film resistors and plastic film capacitor. Circuit must be well shielded to achieve low noise. Responsivity approx. 2.5X104V/W Output Noise approx. 30 PVrms, 0.1 Hz to 10 Hz Figure 116.
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LME49870 www.ti.com SNAS413C – SEPTEMBER 2007 – REVISED APRIL 2013 REVISION HISTORY Rev Date 1.0 09/20/07 Description Initial release. 1.1 09/27/07 Updated Notes 1–7 (per TI standard). 1.2 12/20/07 Deleted all Crosstalk vs Frequency curves. 1.3 01/14/08 Edited some graphics. C 04/04/13 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 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device LME49870MAX/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) LME49870MAX/NOPB SOIC D 8 2500 349.0 337.0 45.
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