OPA1622 SoundPlus™ Audio Operational Amplifier with High Performance, Low THD+N and Bipolar Input | TI.com

OPA1622 (ACTIVE) SoundPlus™ Audio Operational Amplifier with High Performance, Low THD+N and Bipolar Input

 

Recommended alternative parts

  • INA1620  -  Includes matched resistor arrays and input EMI filtering

Recommended alternative device

For the same performance with added matched resistor arrays and input EMI filtering, see the INA1620.

Description

The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2.8-nV/√Hz noise density with an ultralow THD+N of –119.2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 ideal for use in portable-audio applications. This device also has a high output-drive capability of +145 mA / –130 mA.

The OPA1622 operates over a very wide supply range of ±2 V to ±18 V, on only 2.6 mA of supply current per channel. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions. The OPA1622 includes a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. This shutdown feature is specifically designed to eliminate click and pop noise when transitioning into or out of shutdown mode.

The OPA1622 features a unique internal layout for lowest crosstalk, and freedom from interactions between channels, even when overdriven or overloaded. This device is specified from –40°C to +125°C.

Features

  • High-Fidelity Sound Quality
  • Ultralow Noise: 2.8 nV/√Hz at 1 kHz
  • Ultralow Total Harmonic Distortion + Noise:
    –119 dB THD+N (142 mW/Ch into 32 Ω/Ch)
  • Wide Gain Bandwidth Product:
    32 MHz (G = +1000)
  • High Slew Rate: 10 V/µs
  • High Capacitive-Load Drive Capability: > 600 pF
  • High Open-Loop Gain: 136 dB (600-Ω Load)
  • Low Quiescent Current: 2.6 mA per Channel
  • Low-Power Shutdown Mode With Reduced Pop
    and Click Noise: 5 µA per Channel
  • Short-Circuit Protection
  • Wide Supply Range: ±2 V to ±18 V
  • Available in small VSON-10 µPackage

Parametrics

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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)
OPA1622 Order now 2     4     36     32     10     No     0.5     2.6     2.8     Burr-Brown™ Audio
High Cload Drive
Premium Sound
Shutdown
Small Size    
0.000018     Catalog     -40 to 125     VSON | 10     145     10VSON: 9 mm2: 3 x 3 (VSON | 10)     Bipolar     127     2000000    
INA1620 Order now 2     4     36     32     10     No     0.5     2.6     2.8     Burr-Brown™ Audio
High Cload Drive
Premium Sound
Shutdown
Small Size    
0.000018     Catalog     -40 to 125     WQFN | 24     145     24WQFN: 16 mm2: 4 x 4 (WQFN | 24)     Bipolar     127     2000000    
OPA1612 Order now 2     5     36     40     27     Out     0.5     3.6     1.1     Burr-Brown™ Audio
Premium Sound
Small Size    
0.000015     Catalog     -40 to 85     SOIC | 8
SON | 8    
55     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8SON: 9 mm2: 3 x 3 (SON | 8)    
Bipolar     120     250000    
OPA1652 Order now 2     4.5     36     18     10     Out     1.5     2     4.5     Burr-Brown™ Audio
Small Size    
0.00005     Catalog     -40 to 85     SOIC | 8
SON | 8
VSSOP | 8    
50     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8SON: 9 mm2: 3 x 3 (SON | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8)    
CMOS     110     100    
OPA1688 Order now 2