LT1115 - Ultra-Low Noise, Low Distortion, Audio Op Amp
Datasheet Datasheet
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
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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).
N-8,SW-16
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LT1115CN8#PBF | PDIP | 8 | C | $3.57 | $2.90 |
| LT1115CSW#PBF | SO | 16 | C | $4.67 | $3.70 |
| LT1115CSW#TRPBF | SO | 16 | C | $3.76 | |
| LT1115CN8 | PDIP | 8 | C | $7.14 | $5.80 |
| LT1115CSW | SO | 16 | C | $9.34 | $7.40 |
| LT1115CSW#TR | SO | 16 | C | $7.52 |
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 | $25.00 |