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Signal
ConditioningOperational
Amplifiers (Op Amps)Precision
Amplifiers
Signal
ConditioningOperational
Amplifiers (Op Amps)Low
Noise Amplifiers

Overview

Packaging

Order
Info

Design Tools

Demo
Boards

Notifications

Tech
Support

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

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

Part Number

Package

Code

Temp

Package
Drawing

RoHS

LT1115CN8#PBF

N-8

N

C

05-08-1510
(N8)

Yes

LT1115CSW#PBF

SW-16

SW

C

05-08-1620
(SW16)

Yes

LT1115CSW#TRPBF

SW-16

SW

C

05-08-1620
(SW16)

Yes

Order Info

Part numbers ending in PBF are lead
free. Solder plated terminal finish (SnPb) versions are non-standard and
special terms and conditions and pricing applies if available. Please contact
LTC marketing for information.

Part numbers containing TR or TRM are shipped in tape
and reel or 500 unit mini tape and reel, respectively

Please refer to our general
ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number

Package

Temp

Price
(1-99)

Price
(1k)*

RoHS

LT1115CN8#PBF

N-8

C

$3.57

$2.90

Yes

LT1115CSW#PBF

SW-16

C

$4.67

$3.70

Yes

LT1115CSW#TRPBF

SW-16

C

$3.76

Yes

Buy
Now • Request
Samples

* 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.

Part Number

Description

Price

Documentation

DC417B

DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose
Board for Single Op. Amp

Contact
Factory

View

Buy
Now

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

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Product Notifications

Please login to your MyLinear account for notifications of datasheet updates,
new document releases and LTspice model announcements for your favorite
products. If you do not have a MyLinear account you may Sign
Up Now.

Email Address

Password

Forgot your password? Click here.
Need
help? Email [email-masked] with questions and
comments.

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

For immediate technical assistance, contact
your local sales office or distributor or call 1-800-4-LINEAR (US
customers only) or 408-432-1900.

For less urgent requests, please complete our Technical
Support Request Form. Please allow 2-3 business days for
reply.

Order Now

Order
Now

Request
Samples

Documentation

Datasheet

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

Application Note

AN43
- Bridge Circuits

AN48
- Using the LTC Op Amp Macromodels

AN67
- Linear Technology Magazine Circuit Collection, Volume III

Design Note

DN140
- Updated Operational Amplifier Selection Guide for Optimum Noise
Performance

DN42
- Chopper vs Bipolar Op Amps—An Unbiased Comparison

Reliability Data

R041
Reliability Data

© 2016 Linear Technology

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