- Rail-to-rail inputs and outputs
- Easily drive 10kΩ loads with less than 10mV per supply
- Superior audio signal fidelity optimized
- Output short-circuit protection
illustrate
The LME49721 is a low distortion, low noise, rail-to-rail input/output operational amplifier, high performance, high fidelity optimized and fully specified for applications. Combined with advanced cutting-edge process technology, the LME49721 rail-to-rail input/output op amp provides superior signal amplification with state-of-the-art circuit design. The LME49721 combined with low THD+N has a very high slew rate, making it easy to meet 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 ±9.7 mA. In addition, dynamic range is maximized by any load with a supply voltage of 10mV 10kΩ within the output stage driver.
The LME49721 has a wide supply voltage range of 2.2V to 5.5V. The input circuitry of the LME49721 maintains excellent common-mode and power supply rejection over this supply voltage range, as well as its low input bias current. The LME49721 is unity-gain stable.
Main specifications
|
■ Supply voltage range
|
2.2V to 5.5V
|
|
■ Quiescent current
|
2.15 mA (typical)
|
|
■ THD + N （AV = 2，VOUT= 4VPP= 1kHz, fat）
|
|
|
RL = 2kΩ
|
0.00008% (typical)
|
|
RL =600Ω
|
0.0001% (typical)
|
|
■ Input noise density
|
4nV / √ ^ @ Hz of 1kHz (typical)
|
|
■ Slew rate
|
±8.5V/μs (typical)
|
|
■ Gain-bandwidth product
|
20MHz (typical)
|
|
■ Open-loop gain（RL =600Ω）
|
118 dB (typical)
|
|
■ Input bias current
|
40fA (typical)
|
|
■ Input offset voltage
|
0.3mV (typical)
|
|
■ PSRR
|
103 dB (typical)
|
apply
- Ultra-high-quality portable audio amplification
- High fidelity preamplifier
- High-fidelity multimedia
- Ampere in front of the National Art Phono Player
- High-performance professional audio
- High-fidelity equalization and crossover networks
- High-performance line drivers
- High-performance line receivers
- High-fidelity active filters
- I-V converters for DACs
- ADC front-end signal conditioning
|