OPA1644是TI公司的一款精密放大器产品，OPA1644是OPA1641/1642/1644 SoundPLUS? 高性能 JFET 输入音频运算放大器，本页介绍了OPA1644的产品说明、应用、特性等，并给出了与OPA1644相关的TI元器件型号供参考。
OPA1644 - OPA1641/1642/1644 SoundPLUS? 高性能 JFET 输入音频运算放大器 - 精密放大器 - 运算放大器(OpAmp) - TI公司（Texas Instruments，德州仪器）
The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications.
The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1nV/√Hz noise, low THD+N (0.00005%), a low input bias current of 2pA, and low quiescent current of 1.8mA per channel.
These devices operate over a very wide supply voltage range of ±2.25V to ±18V. The OPA1641, OPA1642, and OPA1644 series of op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.
The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.
The OPA1641, OPA1642, and OPA1644 are specified from –40°C to +85°C.
- SUPERIOR SOUND QUALITY
- TRUE JFET INPUT OP AMP WITH LOW INPUT BIAS CURRENT
- LOW NOISE: 5.1nV/√Hz at 1kHz
- ULTRALOW DISTORTION: 0.00005% at 1kHz
- HIGH SLEW RATE: 20V/µs
- UNITY GAIN STABLE
- NO PHASE REVERSAL
- LOW QUIESCENT CURRENT: 1.8mA per Channel
- RAIL-TO-RAIL OUTPUT
- WIDE SUPPLY RANGE: ±2.25V to ±18V
- SINGLE, DUAL, AND QUAD VERSIONS AVAILABLE
- APPLICATIONS
- PROFESSIONAL AUDIO EQUIPMENT
- ANALOG AND DIGITAL MIXING CONSOLES
- BROADCAST STUDIO EQUIPMENT
- HIGH-END A/V RECEIVERS
- HIGH-END BLU-RAY™ PLAYERS
SoundPlus is a trademark of Texas Instruments Incorporated. BLU-RAY is a trademark of Blu-Ray Disc Assocation. All other trademarks are the property of their respective owners.
