Texas Instruments OPA1622 SoundPlus 音频运算放大器
Texas Instruments OPA1622 SoundPlus™ 音频运算放大器是一款可实现 2.8nV/√Hz 超低噪声密度的放大器。 这通过 1kHz 时 –119.2dB 的超低 THD+N 以及以 100mW 的输出功率驱动一个 32Ω 负载来实现。OPA1622 具有极高的交流电源抑制比 (PSRR) 和共模抑制比 (CMRR) 技术规格，可消除来自电源的噪声，因此非常适合便携音频应用。此外，该器件还具有 +145mA/–130mA 高输出驱动能力。OPA1622 可在 ±2V 到 ±18V 的宽电源电压范围内工作，每通道电源电流仅为 2.6mA。OPA1622 运算放大器的单位增益稳定，在宽范围负载条件下可保持出色的动态性能。
特性
- High-fidelity sound quality
- 2.8nV/√Hz at a 1kHz Ultra-low noise
- Ultra-low total harmonic distortion + noise
- -119dB THD+N (142mW/Ch into 32Ω/Ch)
- Wide gain-bandwidth product
- 32MHz (G = +1000)
- 10V/µs High slew rate
- > 600pF High capacitive-load drive capability
- 136dB (600Ω Load) High open-loop gain
- 2.6mA per Channel low quiescent current
- 5µA per Channel low-power shutdown mode with reduced pop and click noise
- Short-circuit protection
- ±2V to ±18V Wide supply range
- Available in small VSON-10 µPackage
应用
- High-Fidelity (HiFi) headphone drivers
- Professional audio equipment
- Analog and digital mixing consoles
- Audio test and measurement
- High-end Blu-ray™ players
- High-end Audio and Video (A/V) receivers
Associated Development Tools
Texas Instruments Universal Operational Amplifier EVMs
General purpose blank circuit boards that simplify the evaluation of operational amplifiers.
Texas Instruments OPA1622EVM运算放大器评估模块
用于评估OPA1622音频运算放大器性能的硬件平台。
视频
Functional Block Diagram
发布日期: 2016-02-15
| 更新日期: 2022-03-11