型号OPA1679-Q1
品牌
分类音频运算放大器
描述汽车类四通道、低噪声 4.5nV/rtHz、低失真 120dB 音频运算放大器
相关操作
产品概述

参数

Number of channels 4
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.5
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
GBW (typ) (MHz) 16
Slew rate (typ) (V/µs) 9
Rail-to-rail Out
Vos (offset voltage at 25°C) (max) (mV) 2
Iq per channel (typ) (mA) 2
Vn at 1 kHz (typ) (nV√Hz) 4.5
Features Small Size
THD + N at 1 kHz (typ) (%) 0.0001
Rating Automotive
Operating temperature range (°C) -40 to 125
Iout (typ) (A) 0.025
Architecture CMOS
CMRR (typ) (dB) 110

封装 | 引脚 | 尺寸

WQFN (RUM) 16 16 mm² 4 x 4

特性

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Low noise: 4.5 nV/√Hz at 1 kHz
  • Low distortion: 0.0001% at 1 kHz
  • High open-loop gain: 114 dB
  • Low quiescent current:
    • 2 mA per channel
  • Low input bias current: 10 pA (typical)
  • Slew rate: 9 V/µs
  • Wide gain bandwidth: 16 MHz (G = 1)
  • Rail-to-rail output
  • Wide supply range:
    • ±2.25 V to ±18 V, or 4.5 V to 36 V
  • Available packages:
    • Dual: SOIC-8 (Preview)
    • Quad: Small QFN-16

说明

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 36V) 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.