2 通道、55MHz、低噪声、高性能 RRO 音频运算放大器
| Number of channels (#) | 2 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 5 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 34 |
| GBW (Typ) (MHz) | 55 |
| Slew rate (Typ) (V/us) | 20 |
| Rail-to-rail | No |
| Vos (offset voltage @ 25 C) (Max) (mV) | 0.7 |
| Iq per channel (Typ) (mA) | 5 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 2.5 |
| THD + N @ 1 kHz (Typ) (%) | 0.00003 |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
| Output current (Typ) (mA) | 26 |
| Architecture | Voltage FB |
| CMRR (Typ) (dB) | 120 |
| Input bias current (Max) (pA) | 72000 |
- Easily Drives 600Ω Loads
- Optimized for Superior Audio Signal Fidelity
- Output Short Circuit Protection
- PSRR and CMRR Exceed 120dB (typ)
- SOIC, PDIP, TO-99 Metal Can Packages
- Key Specifications
- Power Supply Voltage Range: ±2.5 to ±17V
- THD+N (AV = 1, VOUT = 3VRMS, fIN = 1kHz):
- RL = 2kΩ: 0.00003% (typ)
- RL = 600Ω: 0.00003% (typ)
- Input Noise Density: 2.7nV/√Hz (typ)
- Slew Rate: ±20V/μs (typ)
- Gain Bandwidth Product: 55MHz (typ)
- Open Loop Gain (RL = 600Ω;): 140dB (typ)
- Input Bias Current: 10nA (typ)
- Input Offset Voltage: 0.1mV (typ)
- DC Gain Linearity Error: 0.000009%
The LME49720 device is part of the ultra-low distortion, low noise, high slew rate operational amplifier series optimized and fully specified for high performance, high fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49720 audio operational amplifiers deliver superior audio signal amplification for outstanding audio performance. The LME49720 combines extremely low voltage noise density (2.7nV/√Hz) with vanishingly low THD+N (0.00003%) to easily satisfy the most demanding audio applications.
