型号OPA1644
品牌
分类音频运算放大器
描述OPA1641/1642/1644 SoundPLUS™ 高性能 JFET 输入音频运算放大器
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) 5
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36
GBW (typ) (MHz) 11
Slew rate (typ) (V/µs) 20
Rail-to-rail In to V-, Out
Vos (offset voltage at 25°C) (max) (mV) 3.5
Iq per channel (typ) (mA) 1.8
Vn at 1 kHz (typ) (nV√Hz) 5.1
Features Burr-Brown™ Audio, EMI Hardened, Premium Sound
THD + N at 1 kHz (typ) (%) 0.00005
Rating Catalog
Operating temperature range (°C) -40 to 85
Iout (typ) (A) 0.03
Product type Essential
Architecture FET
CMRR (typ) (dB) 126
Input bias current (max) (pA) 20

封装 | 引脚 | 尺寸

SOIC (D) 14 51.9 mm² 8.65 x 6
TSSOP (PW) 14 32 mm² 5 x 6.4

特性

  • Superior Sound Quality
  • True JFET Input Operational Amplifier
    With Low Input Bias Current
  • Low Noise: 5.1 nV/√Hz at 1 kHz
  • Ultralow Distortion: 0.00005% at 1 kHz
  • High Slew Rate: 20 V/µs
  • Unity Gain Stable
  • No Phase Reversal
  • Low Quiescent Current:
    1.8 mA per Channel
  • Rail-to-rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single, Dual, and Quad Versions Available

说明

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 5.1-nV/√Hz noise, low THD+N (0.00005%), a low input bias current of 2 pA, and low quiescent current of 1.8 mA per channel.

These devices operate over a very wide supply voltage range of ±2.25 V to ±18 V. The OPA1641, OPA1642, and OPA1644 series of operational amplifiers 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.