Catalog
Ultra-Low Noise, Low Distortion, Audio Op Amp
Key Features
• Voltage Noise:1.2nV/√HzMax at 1kHz0.9nV/√HzTyp at 1kHz
• 1.2nV/√HzMax at 1kHz
• 0.9nV/√HzTyp at 1kHz
• Voltage and Current Noise 100% Tested
• Gain-Bandwidth Product: 40MHz Min
• Slew Rate: 10V/µs Min
• Voltage Gain: 2 Million Min
• Low THD at 10kHz, AV= –10, RL= 600Ω: 0.002%, VO= 7VRMS
• Low IMD, CCIF Method, AV= +10: 0.002%, RL= 600Ω, VO= 7VRMS
Description
AI
The LT1115 is the lowest noise audio operational amplifier available. This ultralow noise performance (0.9nV/√Hzat 1kHz) is combined with high slew rates (>15V/µs) and very low distortion specifications.The RIAA circuit shown below using the LT1115 has very low distortion and little deviation from ideal RIAA response (see graph).ApplicationsHigh Quality Audio PreamplifiersLow Noise Microphone PreamplifiersVery Low Noise Instrumentation AmplifiersLow Noise Frequency SynthesizersInfrared Detector AmplifiersHydrophone AmplifiersLow Distortion Oscillators
