0.00001

0.0001

0.001

0.01

20

100

1k

10k

20k

Frequency (Hz)

BW = 80kHz

G007

1

10

100

1k

10k

100k

0.1

1

10

100

0.1

1

10

100

Frequency (Hz)

Voltage Noise

Current Noise

G001

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

OPA1662-Q1

SLOS805C – JULY 2012 – REVISED AUGUST 2016

OPA1662-Q1 Dual, 3.3 nV/

√Hz Noise, 0.00006% THD+N, RRO, Bipolar-Input Audio

Operational Amplifier

1

1 Features

1

•

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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPA1662-Q1

SOIC (8)

4.90 mm × 3.91 mm

VSSOP (8)

3.00 mm × 3.00 mm

(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