| Number of channels (#) | 2 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 2.2 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 5.5 |
| GBW (Typ) (MHz) | 20 |
| Slew rate (Typ) (V/us) | 8.5 |
| Rail-to-rail | In, Out |
| Vos (offset voltage @ 25 C) (Max) (mV) | 1.5 |
| Iq per channel (Typ) (mA) | 2.15 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 4 |
| Features | Premium Sound, Shutdown |
| THD + N @ 1 kHz (Typ) (%) | 0.0002 |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
| Output current (Typ) (mA) | 100 |
| Architecture | Voltage FB |
| CMRR (Typ) (dB) | 93 |
| Input bias current (Max) (pA) | 1 |
- Rail-to-Rail Input and Output
- Easily Drives 10k? Loads to Within 10mV of Each Power Supply Voltage
- Optimized for Superior Audio Signal Fidelity
- Output Short Circuit Protection
Key Specifications
- Power Supply Voltage Range: 2.2V to 5.5V
- Quiescent Current: 2.15mA (typ)
- THD+N (AV = 2, VOUT = 4Vp-p, f IN = 1kHz)
- RL = 2k?: 0.00008% (typ)
- RL = 600?: 0.0001% (typ)
- Input Noise Density: 4nV/√Hz (typ), @ 1kHz
- Slew Rate: ±8.5V/μs (typ)
- Gain Bandwidth Product: 20MHz (typ)
- Open Loop Gain (RL = 600?): 118dB (typ)
- Input Bias Current: 40fA (typ)
- Input Offset Voltage: 0.3mV (typ)
- PSRR: 103dB (typ)
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The LME49721 is a low-distortion, low-noise Rail-to-Rail Input/Output operational amplifier optimized and fully specified for high-performance, high-fidelity applications. Combining advanced leading-edge process technology with state-of-the-art circuit design, the LME49721 Rail-to-Rail Input/Output operational amplifier delivers superior signal amplification for outstanding performance. The LME49721 combines a very high slew rate with low THD+N to easily satisfy demanding applications. To ensure that the most challenging loads are driven without compromise, the LME49721 has a high slew rate of ±8.5V/μs and an output current capability of ±9.7mA. Further, dynamic range is maximized by an output stage that drives 10k? loads to within 10mV of either power supply voltage.
The LME49721 has a wide supply range of 2.2V to 5.5V. Over this supply range the LME49721’s input circuitry maintains excellent common-mode and power supply rejection, as well as maintaining its low input bias current. The LME49721 is unity gain stable.
