High Fidelity Audio Operational Amplifier

LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier March 2007 LME49720 Dual High Performance, High Fidelity Audio Operational Amplifier General Description RL = 2kΩ RL = 600Ω 0.00003% (typ) The LME49720 is part of the ultra-low distortion, low noise, 0.00003% (typ) high slew rate operational amplifier series optimized and fully ■ Input Noise Density 2.7nV/√Hz (typ) specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with ±20V/μs (typ) ■ Slew Rate state-of-the-art circuit design, the LME49720 audio opera55MHz (typ) ■ Gain Bandwidth Product tional amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49720 combines 140dB (typ) ■ Open Loop Gain (RL = 600Ω) extremely low voltage noise density (2.7nV/√Hz) with van10nA (typ) ■ Input Bias Current ishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications. To ensure that the most chal0.1mV (typ) ■ Input Offset Voltage lenging loads are driven without compromise, the LME49720 0.000009% ■ DC Gain Linearity Error 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 Features supply voltage and to within 1.4V when driving 600Ω loads. ■ Easily drives 600Ω loads The LME49720's outstanding CMRR (120dB), PSRR ■ Optimized for superior audio signal fidelity (120dB), and VOS (0.1mV) give the amplifier excellent oper■ Output short circuit protection ational amplifier DC performance. ■ PSRR and CMRR exceed 120dB (typ) The LME49720 has a wide supply range of ±2.5V to ±17V. Over this supply range the LME49720’s input circuitry main■ SOIC, DIP, TO-99 metal can packages tains excellent common-mode and power supply rejection,www.DataSheet4U.com as well as maintaining its low input bias current. The LME49720 Applications is unity gain stable. This Audio Operational Amplifier achieves ■ Ultra high quality audio amplification outstanding AC performance while driving complex loads with values as high as 100pF. ■ High fidelity preamplifiers The LME49720 is available in 8–lead narrow body SOIC, 8– ■ High fidelity multimedia lead Plastic DIP, and 8–lead Metal Can TO-99. Demonstra■ State of the art phono pre amps tion boards are available for each package. ■ High performance professional audio ■ High fidelity equalization and crossover networks Key Specifications ■ High performance line drivers ■ Power Supply Voltage Range ±2.5V to ±17V ■ High performance line receivers ■ High fidelity active filters ■  THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz) Typical Application 300038k5 Passively Equalized RIAA Phono Preamplifier © 2007 National Semiconductor Corporation 300038 www.national.com LME49720 Connection Diagrams 30003855 Order Number LME49720MA See NS Package Number — M08A Order Number LME49720NA See NS Package Number — N08E Metal Can 300038f3 Order Number LME49720HA See NS Package Number — H08C www.national.com 2 LME49720 Absolute Maximum Ratings (Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage (VS = V+ - V-) Storage Temperature Input Voltage Output Short Circuit (Note 3) Power Dissipation ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) 36V −65°C to 150°C (V-) - 0.7V to (V+) + 0.7V Continuous Internally Limited 2000V Pins 1, 4, 7 and 8 Pins 2, 3, 5 and 6 Junction Temperature Thermal Resistance  θJA (SO)  θJA (NA)  θJA (HA)  θJC (HA) Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage Range 200V 100V 150°C 145°C/W 102°C/W 150°C/W 35°C/W –40°C ≤ TA ≤ 85°C ±2.5V ≤ VS ≤ ± 17V Electrical Characteristics for the LME49720 LME49720 Symbol Parameter Conditions AV = 1, VOUT = 3Vrms THD+N Total Harmonic Distortion + Noise RL = 2kΩ RL = 600Ω IMD GBWP SR FPBW Intermodulation Distortion Gain Bandwidth Product Slew Rate Full Power Bandwidth VOUT = 1VP-P, –3dB referenced to output magnitude at f = 1kHz AV = –1, 10V step, CL = 100pF 0.1% error range fBW = 20Hz to 20kHz f = 1kHz f = 10Hz f = 1kHz f = 10Hz AV = 1, VOUT = 3VRMS Two-tone, 60Hz & 7kHz 4:1 0.00003 0.00003 0.00005 55 ±20 10 45 ±15 % (max) 0.00009 % MHz (min) V/μs (min) MHz Typical (Note 6) Limit (Note 7) Units (Limits) ts Settling time Equivalent Input Noise Voltage 1.2 0.34 2.7 6.4 1.6 3.1 ±0.1 0.2 120 118 112 10 0.1 11 +14.1 –13.9 65 (V+) – 2.0 (V-) + 2.0 110 72 110 ±0.7 0.65 4.7 μs μVRMS (max) en Equivalent Input Noise Density in VOS Current Noise Density Offset Voltage  nV/√Hz (max)  pA/√Hz mV (max) μV/°C dB (min) dB nA (max) nA/°C nA (max) V (min) dB (min) kΩ MΩ Average Input Offset Voltage Drift vs ΔVOS/ΔTemp –40°C ≤ TA ≤ 85°C Temperature PSRR ISOCH-CH IB ΔIOS/ΔTemp IOS VIN-CM CMRR ZIN Average Input Offset Voltage Shift vs ΔVS = 20V (Note 8) Power Supply Voltage Channel-to-Channel Isolation Input Bias Current Input Bias Current Drift vs Temperature Input Offset Current Common-Mode Input Voltage Range Common-Mode Rejection Differential Input Impedance Common Mode Input Impedance –10V