LME49880

LME49880 Dual FET Input Audio Operational Amplifier LME49880 Overture® E-Series Dual JFET Input Audio Operational Amplifier General Description The LME49880 is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity application. The LME49880 is developed in JFET technology and reducing the flicker noise as well as the noise corner frequency significantly. It combines low voltage noise density (7nV/√Hz) with very low THD+N (0.00003%). The LME49880 has a high slew rate of ±17 V/μs and an output current capability of ±22mA. It drives 600Ω loads to within 1.3V of either power supply voltage. The LME49880 has a wide supply range of ±5V to ±17V. Its outstanding GAIN (120dB), and low input bias current (5pA) give the amplifier excellent operational amplifier DC performance. The LME49880 is unity gain stable and capable of driving complex loads with values as high as 100pF. It is available in an 8-lead narrow body PSOP. April 22, 2010 Key Specifications ■ Input Bias Current ■ Power Supply Voltage Range ■ THD+N  (AV = 1, VOUT = 3VRMS, fIN = 1kHz) RL = 2kΩ RL = 600Ω 0.00003% (typ) 0.00003% (typ) ±17V/μs (typ) 25MHz (typ) 115dB (typ) 7nV/√Hz (typ) 5mV (typ) 110dB (typ) 5pA (typ) ±5V to ±17V ■ Slew Rate ■ Gain Bandwidth Product ■ Open Loop Gain (RL = 600Ω) ■ Input Noise Density ■ Input Offset Voltage ■ CMRR Features ■ Easily drives 600Ω loads ■ Output short circuit protection Applications ■ ■ ■ ■ ■ Ultra high quality audio signal processing Preamplifier Spectrum analyzers Ultrasound preamplifier Active filters Typical Application   VCC = ±15V, VO = 3VRMS, RL = 600Ω 300596t9 FIGURE 1: Current Noise and Voltage Spectral Density 300596s0 FIGURE 2: THD+N vs Frequency Overture® is a registered trademark of National Semiconductor. © 2010 National Semiconductor Corporation 300596 www.national.com LME49880 Connection Diagram 30059655 Order Number LME49880MR See NS Package Number — MRA08B Ordering Information Ordering Information Order Number LME49880MR LME49880MRX Package 8 Ld PSOP with Exposed Pad 8 Ld PSOP with Exposed Pad Package DWG # MRA08B MRA08B Transport Media 95 units 2500 units on rail MSL Level 3 3 Green Status RoHS and noSb/Br RoHS and noSb/Br www.national.com 2 LME49880 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) 36V −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 (PSOP) Solder Information Infrared or Convection (20 sec) 1000V 150°C 55°C/W 260°C Operating Ratings Temperature Range TMIN ≤ TA ≤ TMAX Supply Voltage Range (Note 1) –40°C ≤ TA ≤ 85°C ±5V ≤ VS ≤ ±17V Electrical Characteristics otherwise specified. Symbol Parameter The following specifications apply for VS = ±15V, TA = 25°C, unless LME49880 Conditions Typical (Note 6) Limit (Note 7) Unit s (Limits) AV = 1, VOUT = 3VRMS THD+N GBWP SR ts Total Harmonic Distortion + Noise Gain Bandwidth Product Slew Rate Settling time Equivalent Input Noise Voltage eN Equivalent Input Noise Density iN VOS Current Noise Density Offset Voltage –40°C ≤ TA ≤ 85°C VCC = ±5V to ±15V VCM = 0V VCM = 0V RL = 2kΩ RL = 600Ω AV = 1k, RL = 2k RL = 2k AV = –1, 10V step, CL = 100pF 0.1% error range fBW = 20Hz to 20kHz f = 1kHz f = 10Hz f = 1kHz 0.00003 0.00003 25 ±17 0.8 0.7 7 16 6 ±5 3 110 5 2 +11.5 –11.5 110 115 120 120 ±13.2 ±13.2 ±13.2 ±26 ±48 fIN = 10kHz, Open-Loop IOUT = 0mA 15 14 18 150 100 (V+) –5V (V-) +5V 90 100 100 100 ±12.0 ±12.5 ±12.5 ±10 1.6 11 % (max) 0.00009 19 ±12 MHz (min) V/μs (min) μs μVRMS (max)  nV/√Hz (max)  fA/√Hz mV (max) μV/°C dB pA (max) pA (max) V (min) dB (min) dB (min) dB (min) dB (min) V (min) V (min) V (min) mA mA Ω mA (max) Average Input Offset Voltage Drift ΔVOS/ΔTemp vs Temperature PSRR IB IOS VIN-CM CMRR AVOL Power Supply Rejection Ratio Input Bias Current Input Offset Current Common-Mode Input Voltage Range CMRR > 55dB Common-Mode Rejection Open Loop Voltage Gain –10V