OPA1632 Fully Differential I/O Audio Amplifier | TI.com

OPA1632 (ACTIVE)

Fully Differential I/O Audio Amplifier

 

Description

The OPA1632 is a fully-differential amplifier designed for driving high-performance audio analog-to-digital converters (ADCs). It provides the highest audio quality, with very low noise and output drive characteristics optimized for this application. The OPA1632’s excellent gain bandwidth of 180 MHz and very fast slew rate of 50 V/μs produce exceptionally low distortion. Very low input noise of 1.3 nV/√Hz further ensures maximum signal-to-noise ratio and dynamic range.

The flexibility of the fully differential architecture allows for easy implementation of a single-ended to fully-differential output conversion. Differential output reduces even-order harmonics and minimizes common-mode noise interference. The OPA1632 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature also enhances the flexibility of this amplifier.

The OPA1632 is available in an SO-8 package and a thermally-enhanced MSOP-8 PowerPAD package.

For all available packages, see the orderable addendum at the end of the data sheet.

Features

  • Superior Sound Quality
  • Ultra Low Distortion: 0.000022%
  • Low Noise: 1.3 nV/√Hz
  • High Speed:
    • Slew Rate: 50 V/μs
    • Gain Bandwidth: 180 MHz
  • Fully Differential Architecture:
    • Balanced Input and Output Converts Single-Ended Input to Balanced Differential Output
  • Wide Supply Range: ±2.5 V to ±16 V
  • Shutdown to Conserve Power
  • APPLICATIONS
    • Audio ADC Driver
    • Balanced Line Driver
    • Balanced Receiver
    • Active Filter
    • Preamplifier
  • Parametrics

    Compare all products in Audio op amps Email Download to Excel
    Part number Order 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)
    OPA1632 Order now 1     5     30     180     50     No     3     14     1.3     Burr-Brown™ Audio
    Shutdown    
    0.000022     Catalog     -40 to 85     MSOP-PowerPAD | 8
    SOIC | 8    
    85     8MSOP-PowerPAD: 15 mm2: 4.9 x 3 (MSOP-PowerPAD | 8)
    8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
    Voltage FB     90     200000