OPA1642 Sound-Plus 高性能、JFET 输入音频运算放大器 | 德州仪器 TI.com.cn

OPA1642 (正在供货)

Sound-Plus 高性能、JFET 输入音频运算放大器

 

描述

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.

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

参数

与其它产品相比 音频 运算放大器 邮件 下载到电子表格中
Part number 立即下单 Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) Features THD + N @ 1 kHz (Typ) (%) Rating Operating temperature range (C) Package Group Output current (Typ) (mA) Package size: mm2:W x L (PKG) Architecture CMRR (Typ) (dB) Input bias current (Max) (pA)
OPA1642 立即下单 2     5     36     11     20     In to V-
Out    
3.5     1.8     5.1     Burr-Brown™ Audio
Premium Sound    
0.00005     Catalog     -40 to 85     SOIC | 8
VSSOP | 8    
30     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
FET     126     20    
OPA1656 无样片 2     4.5     36     50     23     Out     1     4.0     4.0     Burr-Brown™ Audio
Premium Sound    
0.00001     Catalog     -55 to 125     SOIC | 8     100     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     CMOS     136     10    
OPA1678 立即下单 2     4.5     36     16     9     Out     2     2     4.5    
   
0.0001     Catalog     -40 to 85     SOIC | 8
SON | 8
VSSOP | 8    
50     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
See datasheet (SON)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
FET     110      
OPA1688 立即下单 2     4.5     36     10     8     In to V-
Out    
1.5     1.6     8     Burr-Brown™ Audio
EMI Hardened
High Cload Drive
Small Size    
0.00005     Catalog     -40 to 85     SOIC | 8
SON | 8    
75     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
See datasheet (SON)    
CMOS     120     20