This document is the application manual of LT1115 1115fa ultralow noise, low distortion, audio operational amplifier. The document mainly introduces the characteristics, application scenarios, circuit design, etc. of the product.
The LT1115 is an ultra‑low‑noise, low‑distortion audio operational amplifier from Linear Technology. It offers a voltage noise as low as 0.9 nV/√Hz at 1 kHz, a slew rate of 10 V/µs, and a gain‑bandwidth product of 40 MHz, making it suitable for high‑performance audio preamplifiers and instrumentation.
The document lists absolute maximum ratings, detailed electrical characteristics, typical performance curves, and package options (8‑lead PDIP and 16‑lead SO). Application notes include RIAA phonograph preamplifier designs and guidance on low‑noise circuit layout.
| Slew Rate | 10 V/µs min |
|---|---|
| Gain‑Bandwidth Product | 40 MHz min |
| Voltage Gain | 2 MΩ min |
| Input Offset Voltage | 50 µV min, 200 µV max |
| Supply Current | 11.5 mA typ |
The LT1115 provides a minimum slew rate of 10 V/µs.