1 Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results
  • Device Temperature Grade 3: –40°C to 85°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C3B
• Low Noise: 3.3 nV/√Hz at 1 kHz
• Low Distortion: 0.00006% at 1 kHz
• Low Quiescent Current: 1.5 mA per Channel
• Slew Rate: 17 V/μs
• Wide Gain Bandwidth: 22 MHz (G = 1)
• Unity Gain Stable
• Rail-to-Rail Output
• Wide Supply Range: ±1.5 V to ±18 V,
  or 3 V to 36 V
• Small Package Sizes:
  Dual: 8-Pin SOIC and VSSOP

2 Applications

• Automotive
• Car Audio
• Premium Audio
• External Audio Amplifiers
• Body Control Modules

3 Description

The OPA1662-Q1 is a dual, bipolar-input operational amplifier which is well suited for premium audio external amplifier applications in infotainment and cluster systems. In audio systems, the main concern is to ensure a clear, quality output signal which means minimuzing any noise introduced to the signal. The OPA1662-Q1 offers low noise density with an ultra-low distortion of 0.00006% at 1 kHz that maximizes the signal output. Additionally, this op amp offers rail-to-rail output swing to within 600 mV with 2-kΩ load. The wide headroom ensures that the output signal does not clip, and therefore preserves the audio quality.

the OPA1662-Q1 operates over a very wide supply range of ±1.5 V to ±18 V, or 3 V to 36 V, on only 1.5 mA of supply current per channel. The wide supply range enables design flexibility for the device as it can be integrated from a power amplifier driven by the battery to being driven from an ADC to DAC for low-power applications. Additionally, this device also has a high-output drive capability of ±30 mA and can act as the sole audio amplifier for low-power applications, such as for cluster chimes.

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

Input Voltage Noise Density and Input Current Noise Density vs Frequency

THD+N Ratio vs Frequency