LME49743MT

LME49743 Quad High Performance, High Fidelity Audio Operational Amplifier January 12, 2009 LME49743 Quad High Performance, High Fidelity Audio Operational Amplifier General Description The LME49743 is a low distortion, low noise, high slew rate operational amplifier optimized and fully specified for high performance, high fidelity applications. The LME49743 audio operational amplifier delivers superior audio signal amplification for outstanding audio performance. The LME49743 combines low voltage noise density (3.5nV/√Hz) and THD+N (0.0001%) to easily satisfy demanding audio applications. To ensure that the most challenging loads are driven without compromise, the LME49743 has a slew rate of ±12V/μs and an output current capability of ±21mA. The LME49743's outstanding CMRR(106dB), PSRR(98dB), and VOS (±0.15mV) give the amplifier excellent operational amplifier DC performance. The LME49743 has a wide supply range of ±4.0V to ±17V. Over this supply range the LME49743’s input circuitry maintains excellent common-mode, power supply rejection, and low input bias current. The LME49743 is unity gain stable. The LME49743 is available in 14–lead TSSOP. Key Specifications ■ Power Supply Voltage Range ■ THD+N (AV = 1, VOUT = 3VRMS,   fIN = 1kHz) RL = 2kΩ RL = 600Ω 0.0001% (typ) 0.0001% (typ) 3.5nV/√Hz (typ) ±12V/μs (typ) 30MHz (typ) 110dB (typ) 190nA (typ) ±0.15mV (typ) ±4.0V to ±17V ■ Input Noise Density ■ Slew Rate ■ Gain Bandwidth Product ■ Open Loop Gain (RL = 600Ω) ■ Input Bias Current ■ Input Offset Voltage Features ■ ■ ■ ■ ■ Easily drives 600Ω loads Optimized for superior audio signal fidelity Output short circuit protection 98dB (typ) PSRR and 106dB (typ) CMRR TSSOP package Applications ■ ■ ■ ■ ■ Audio amplifiers and preamplifiers Professional Audio Equalization and crossover networks Line drivers and receivers Active filters © 2009 National Semiconductor Corporation 300481 www.national.com LME49743 Connection Diagram 30048101 Order Number LME49743MT See NS Package Number — MTC14 www.national.com 2 LME49743 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) 36V −65°C to 150°C (V-) - 0.7V to (V+) + 0.7V Continuous (Notes 1, 2) Power Dissipation ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Junction Temperature Thermal Resistance  θJA (MT) Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage Range Internally Limited 750V 175V 150°C 140°C/W –40°C ≤ TA ≤ 85°C ±4.0V ≤ VS ≤ ± 17V Electrical Characteristics and TA = 25C, unless otherwise specified. The following specifications apply for VS = ±15V, RL = 2kΩ, fIN = 1kHz, LME49743 Symbol Parameter Conditions Typical (Note 6) Limit (Notes 7, 8) Units (Limits) 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 0.0001 0.0001 0.0005 30 12 10 25 9.5 0.0002 % (max) % (max) MHz (min) V/μs (min) MHz ts Settling time Equivalent Input Noise Voltage 1.2 0.48 3.5 6.4 1.6 3.1 ±0.15 0.05 98 118 112 190 0.05 7 ±13.2 40 (V+)–2.0 (V-)+2.0 98 250 94 ±1.0 0.65 4.5   μs μVRMS en Equivalent Input Noise Density in VOS ΔVOS/ΔTemp PSRR ISOCH-CH IB ΔIOS/ΔTemp IOS VIN-CM CMRR ZIN Current Noise Density Offset Voltage  nV/√Hz (max)  nV/√Hz  pA/√Hz  pA/√Hz mV (max) μV/°C dB (min) dB dB nA (max) nA/°C nA (max) V (min) V (min) dB (min) kΩ MΩ dB (min) dB (min) Average Input Offset Voltage Drift vs 40°C ≤ TA ≤ 85°C Temperature Average Input Offset Voltage Shift vs ΔVS = 20V (Note 9) 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