LME49713

LME49713 High Performance, High Fidelity Current Feedback Audio Operational Amplifier January 29, 2008 LME49713 High Performance, High Fidelity Current Feedback Audio Operational Amplifier General Description The LME49713 is an ultra-low distortion, low noise, ultra high slew rate current feedback operational amplifier optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49713 current feedback operational amplifier delivers superior signal amplification for outstanding performance. Operating on a wide supply range of ±5V to ±18V, the LME49713 combines extremely low voltage noise density (1.9nV/√Hz) with very low THD+N (0.00008%) to easily satisfy the most demanding applications. To ensure that the most challenging loads are driven without compromise, the LME49713 has a high slew rate of ±1900V/μs and an output current capability of ±100mA. Further, dynamic range is maximized by an output stage that drives 150Ω loads to within 2.9V of either power supply voltage. The LME49713 's outstanding CMRR (88dB), PSRR (102dB), and VOS (0.05mV) give the amplifier excellent operational amplifier DC performance. The LME49713 is available in an 8–lead narrow body SOIC. Demonstration boards are available. ■ Input Noise Density ■ Slew Rate ■  Bandwidth (AV = –1, RL= 2kΩ, RF = 1.2kΩ) 1.9nV/√Hz (typ) ±1900V/μs (typ) 132MHz (typ) 1.8μA (typ) 0.05mV (typ) ■ Input Bias Current ■ Input Offset Voltage Features ■ ■ ■ ■ ■ Easily drives 150Ω loads Optimized for superior audio signal fidelity Output short circuit protection 102dB (typ) PSRR and 88dB (typ) CMRR SOIC package Applications ■ ■ ■ ■ ■ ■ ■ ■ ■ Ultra high quality audio amplification High fidelity preamplifiers High fidelity multimedia State of the art phono pre amps High performance professional audio High fidelity equalization and crossover networks High performance line drivers High performance line receivers High fidelity active filters Key Specifications ■ Power Supply Voltage Range ■ THD+N  (AV = 1, RL = 100Ω, VOUT = 3VRMS,  f = 1kHz) ■ THD+N  (AV = 1, RL = 600Ω, VOUT = 1.4VRMS,  f = 1kHz) ±5V to ±18V 0.0006% (typ) 0.00008% (typ) © 2008 National Semiconductor Corporation 202132 www.national.com LME49713 Connection Diagrams SOIC Package 20213201 Order Number LME49713MA See NS Package Number M08A LME49713MA Top Mark 20213202 N = National Logo Z = Assembly plant code X = 1 Digit date code TT = Die traceability L49713 = LME49713 MA = Package code www.national.com 2 LME49713 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) 38V −65°C to 150°C (V-) - 0.7V to (V+) + 0.7V Continuous Power Dissipation ESD Rating (Note 4) ESD Rating (Note 5) Junction Temperature Thermal Resistance  θJA (MA) Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage Range Internally Limited 2000V 200V 150°C 145°C/W –40°C ≤ TA ≤ 85°C ±5.0V ≤ VS ≤ ± 18V Electrical Characteristics Symbol Parameter (Notes 1, 2) The following specifications apply for the VS = ±15V, RL = 2kΩ, RSOURCE = 10Ω, fIN = 1kHz, and TA = 25°C, unless otherwise specified. LME49713 Conditions AV = 1, VOUT = 3VRMS, RF = 1.2kΩ Typical (Note 6) Limit (Note 7) Units (Limits) THD+N Total Harmonic Distortion + Noise RL = 100Ω, VOUT = 3VRMS RL = 600Ω, VOUT = 1.4VRMS AV = 1, VIN = 3VRMS Two-tone, 60Hz & 7kHz 4:1 AV = –1, RF = 1.2kΩ VO = 20VP-P, AV = –1 VOUT = 20VP-P, AV = –1 AV = –1, 10V step, 0.1% error range fBW = 20Hz to 20kHz f = 1kHz f = 10Hz f = 1kHz f = 10Hz 0.0006 0.00008 0.00009 132 ±1900 30 50 0.26 1.9 11.5 16 160 ±0.05 0.29 102 1.8 4.5 4.7 1.3 0.00065 0.0004 % (max) % (max) % MHz V/μs MHz ns IMD BW SR FPBW ts Intermodulation Distortion Bandwidth Slew Rate Full Power Bandwidth Settling time Equivalent Input Noise Voltage 0.6 4.0 μVRMS (max) en Equivalent Input Noise Density in VOS ΔVOS/ΔTemp PSRR IB ΔIOS/ΔTemp Current Noise Density Input Offset Voltage  nV/√Hz (max)  pA/√Hz ±1.0 mV (max) μV/°C 100 6 dB (min) μA (max) nA/°C nA/°C 5 (V+) – 2.0 (V-) + 2.0 87 μA (max) μA (max) V (min) V (min) dB (min) MΩ Ω 2.0 2.65 ±11.3 ±12.4 MΩ (min) MΩ (min) V (min) V (min) www.national.com Average Input Offset Voltage Drift vs –40°C ≤ TA ≤ 85°C Temperature Average Input Offset Voltage Shift vs VSUPPLY = ±5V to ±15V Power Supply Voltage (Note 8) Input Bias Current Input Bias Current Drift vs Temperature Input Offset Current Common-Mode Input Voltage Range Common-Mode Rejection Inverting-input Input Impedance Transimpedance –10V