Automotive, 1.1nV/√Hz Noise, Low Power, Precision Audio Operational Amplifier

Automotive, 1.1nV/√Hz Noise, Low Power, Precision Audio Operational Amplifier - OPA1612-Q1


The OPA1612-Q1 device is a dual, SoundPlus, bipolar-input operational amplifierthat achieves achieve very low 1.1-nV/√Hz noise density with an ultralow distortion of 0.000015% at 1 kHz. The OPA1612-Q1 device offers 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 OPA1612-Q1 op amp is 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.

The OPA1612-Q1 device is available in a SOIC-8 package. The device is specified from –40°C to +125°C.

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


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C6
  • 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

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Parametrics Compare all products in Audio Op Amps

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)
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Vn at 1kHz (Typ) (nV/rtHz)
THD + N @ 1 kHz (Typ) (%)
Operating Temperature Range (C)
Package Group
Output Current (Typ) (mA)
Package Size: mm2:W x L (PKG)
CMRR (Typ) (dB)
Input Bias Current (Max) (pA)
OPA1612-Q1 OPA1642-Q1 OPA1662-Q1
2    2    2   
4.5    4.5    3   
36    36    36   
40    11    22   
27    20    17   
Out    Out    Out   
0.5    3.5    1.5   
3.6    1.8    1.5   
1.1    5.1    3.3   
N/A    Burr-Brown™ Audio    N/A   
0.000015    0.00005    0.0002   
Automotive    Automotive    Automotive   
-40 to 125    -40 to 125    -40 to 85   
55      40   
8SOIC: 29 mm2: 6 x 4.9(SOIC)    8VSSOP: 15 mm2: 4.9 x 3(VSSOP)    8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
Bipolar    FET    Bipolar   
120    126    100   
250000    20    1200000   

Other qualified versions of OPA1612-Q1

Version Part Number Definition
Catalog OPA1612 TI's standard catalog product

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