LT1115 - Ultra-Low Noise, Low Distortion, Audio Op Amp

Features

  • Voltage Noise 1.2nV/ rtHz Max at 1kHz
  • 0.9nV/ rtHz Typ 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@10kHz, AV= -10, RL=600ohms 0.002% VO=7VRMS
  • Low IMD, CCIF Method, AV= +10: 0.002%, RL=600ohms ,VO=7VRMS

Typical Application

LT1115 Typical Application
LT1115 Typical Application

Description

The LT®1115 is the lowest noise audio operational amplifier available. This ultralow noise performance (0.9nV/rtHz at 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).

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

DIP-8,SOW-16

LT1115 Package Drawing
LT1115 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT1115CN8 PDIP 8 C $3.57 $2.90 View
LT1115CN8#PBF PDIP 8 C $3.57 $2.90 View
LT1115CSW SO 16 C $4.67 $3.70 View
LT1115CSW#PBF SO 16 C $4.67 $3.70 View
LT1115CSW#TR 16 C $3.76 View
LT1115CSW#TRPBF SO 16 C $3.76 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • High Quality Audio Preamplifiers
  • Low Noise Microphone Preamplifiers
  • Very Low Noise Instrumentation Amplifiers
  • Low Noise Frequency Synthesizers
  • Infrared Detector Amplifiers
  • Hydrophone Amplifiers
  • Low Distortion Oscillators

Product Notifications

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Design Tools

LTspiceIV

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice IV

Models for the following parts are available in LTspice IV:
LT1115

Technical Support