LME49990MA

LME49990 Ultra-low Distortion, Ultra-low Noise Operational Amplifier LME49990 Overture® E-Series January 8, 2010 Ultra-low Distortion, Ultra-low Noise Operational Amplifier General Description The LME49990 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. The LME49990 combines low voltage noise density (0.9nV/√Hz) with vanishing low THD+N (0.00001%). The LME49990 has a high slew rate of ±22V/μs and an output current capability of ±27mA. It drives 600Ω loads to within 2V of either power supply voltage. The LME49990’s outstanding Gain (135dB), CMRR (137dB), PSRR (144dB), and VOS (130μV) give the amplifier excellent operational amplifier DC performance. The LME49990 has a wide supply range of ±5V to ±18V. The LME49990 is unity gain stable and is available in an 8-lead narrow body SOIC. Key Specifications ■ Input Noise Density (f = 1kHz) ■ THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz) RL = 600Ω 0.00001% 43Hz (typ) ±22V/μs (max) f = 90kHz) 110MHz (typ) 144dB (typ) 137dB (typ) ±5V to ±18V 0.9nV/√Hz (typ) 1.3nV/√Hz (max) ■ 1/f Corner Frequency ■ Slew Rate ■ Gain Bandwidth ■ PSRR ■ CMRR ■ Power Supply Voltage Range (AV = 104, RL = 2kΩ, Features ■ Easily drives 600Ω load ■ Output short circuit protection Applications ■ ■ ■ ■ ■ ■ Ultra high quality audio signal processing Active Filters Preamplifiers Spectrum analyzers Ultrasound preamplifiers Sigma-Delta ADC/DAC buffers 300597e6 FIGURE 1. Voltage Noise Spectral Density 300597d7 FIGURE 2. THD+N vs Frequency Overture® is a registered trademark of National Semiconductor. © 2010 National Semiconductor Corporation 300597 www.national.com LME49990 Connection Diagram 30059702 Order Number LME49990MA See NS Package Number — M08A Ordering Information Order Number LME49990MA LME49990MAX Package 8 Ld SOIC 8 Ld SOIC Package DWG # M08A M08A Transport Media 95 units in reel 2500 units in tape and reel MSL Level 1 1 www.national.com 2 LME49990 Absolute Maximum Ratings (Note 1) 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 Rating (Note 4) ESD Rating (Note 5) 38V −65°C to 150°C (V-) - 0.3V to (V+) + 0.3V Continuous Internally Limited 2000V 200V (Note 2) ESD Rating (Note 8) Junction Temperature Thermal Resistance  θJA (SO) Soldering Information Infrared or Convection (20 sec) 1000V 150°C 145°C/W 260°C Operating Ratings Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage Range (Note 1) –40°C ≤ TA ≤ 85°C ±5V ≤ VS ≤ ±18V Electrical Characteristics The following specifications apply for VS = ±15V, RL = 2kΩ, fIN = 1kHz, and TA = 25°C, unless otherwise specified. LME49990 Symbol POWER SUPPLY VCC Operating Supply Voltage VCM = 0V, VO = 0V, IO = 0mA VCC = ±5V VCC = ±15V VCC = ±18V VCC = ±5V to ±18V TMIN−TMAX AV = 1, VO = 3VRMS, RL= 1kΩ f = 1kHz f = 20kHz AV = 1, VO = 3VRMS Two-tone 60Hz & 7kHz 4:1 AV = 104, RL = 2kΩ, f = 90kHz AV = –1, VO = 20VPP, RL = 1kΩ AV = –1, VO = 20VPP RL = 1kΩ AV = –1, VO = 10VPP, RL = 1kΩ 0.01% VO = ±10V AVOL Open-Loop Gain RL = 2kΩ TMIN – TMAX RL = 600Ω TMIN – TMAX 135 124 130 122 120 120 dB (min) dB dB (min) dB 22 590 16.5 V/μs (min) ns ±5 ±18 8 9 9 144 137 10 11 12 119 116 V (min) V (max) Parameter Conditions Typical (Note 6) Limit (Note 7) Units (Limits) ICCQ Quiescent Current mA (max) PSRR Power Supply Rejection Ratio dB (min) dB (min) DYNAMIC PERFORMANCE THD+N Total Harmonic Distortion + Noise 0.00001 0.00003 0.000017 110 291 0.00002 % (max) % % MHz kHz IMD GBWP FPBW SR ts Intermodulation Distortion Gain Bandwith Product Full Power Bandwidth Slew Rate Settling time 3 www.national.com LME49990 LME49990 Symbol NOISE f = 10Hz eN Input Noise Voltage Density f = 100Hz f = 1kHz f = 10kHz V_NOISE iN RMS Voltage Noise Input Current Noise Density BW = 0.1Hz to 10Hz (Note 4) BW = 10Hz to 20kHz BW = 10Hz to 1MHz f = 1kHz VCC = ±18V, VCM = 0v, VO = 0V VCC = ±18V, TMIN − TMAX VCC = ±18V, TMIN − TMAX VCC = ±18V, VCM = 0v, VO = 0V VCC = ±18V, TMIN − T MAX VCC = ±18V, VCM = 0v, VO = 0V VCC = ±18V, TMIN − TMAX –10V