OPA1679-Q1中文资料符合汽车标准的四通道、低噪声 (4.5nV/rtHz)、低失真 (120dB) 放大器数据手册TI规格书

描述 Description

The dual-channel OPA1678-Q1 and quad-channel OPA1679-Q1 (OPA167x-Q1) operational amplifiers offer higher system-level performance over legacy op amps commonly used in audio circuitry. The OPA167x-Q1 amplifiers achieve a low 4.5-nV/√Hz noise density and low distortion of 0.0001% at 1 kHz, which improves audio signal fidelity. These devices also offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range.

To accommodate the power-supply constraints of many types of audio products, the OPA167x-Q1 operate over a very wide supply range of ±2.25 V to ±18 V (or 4.5 V to 36 V) on only 2 mA of supply current. These op amps are unity-gain stable and have excellent dynamic behavior over a wide range of load conditions allowing the OPA167x-Q1 to be used in many audio circuits.

The OPA167x-Q1 temperature ranges are specified from –40°C to +125°C.

 

 

特性 Features

• AEC-Q100 qualified for automotive applications:
• Low noise: 4.5 nV/√Hz at 1 kHz
• High open-loop gain: 114 dB
• 2 mA per channel
• Low input bias current: 10 pA (typical)
• Wide gain bandwidth: 16 MHz (G = 1)
• Wide supply range:
• Available packages:
• Quad: Small QFN-16