OPA1612 SoundPlus™ Audio Operational Amplifier with 1.1nV/√Hz Noise, Low THD and Precision | TI.com

OPA1612 (ACTIVE) SoundPlus™ Audio Operational Amplifier with 1.1nV/√Hz Noise, Low THD and Precision

 

Recommended alternative device

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

Description

The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1.1-nV/√Hz noise density with an ultralow distortion of 0.000015% at 1 kHz. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. These devices also have a high output drive capability of ±30 mA.

These devices operate over a very wide supply range of ±2.25 V to ±18 V, on only 3.6 mA of supply current per channel. The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions.

The dual version features completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.

Both the OPA1611 and OPA1612 are available in SOIC-8 packages and the OPA1612 is available in SON-8. These devices are specified from –40°C to +85°C.

Features

  • Superior Sound Quality
  • Ultralow Noise: 1.1 nV/√Hz at 1 kHz
  • Ultralow Distortion:
    0.000015% at 1 kHz
  • High Slew Rate: 27 V/μs
  • Wide Bandwidth: 40 MHz (G = +1)
  • High Open-Loop Gain: 130 dB
  • Unity Gain Stable
  • Low Quiescent Current:
    3.6 mA per Channel
  • Rail-to-Rail Output
  • Wide Supply Range: ±2.25 V to ±18 V
  • Single and Dual Versions Available

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)
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    
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    
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    
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