±180

±160

±140

±120

±100

±80

±60

±40

±20

0

0

5k

10k

15k

20k

Frequency (Hz)

C005

-133.6 dBc (Second Harmonic)

+

-

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Headphone

Output

OPA1622

499

499

768

470 pF

470 pF

768

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OPA1622

SBOS727A – NOVEMBER 2015 – REVISED NOVEMBER 2015

OPA1622 SoundPlus™ High-Fidelity, Bipolar-Input, Audio Operational Amplifier

1 Features

3 Description

The

OPA1622,

dual,

bipolar-input,

SoundPlus™

1

•

High-Fidelity Sound Quality

audio operational amplifier achieves a very low, 2.8-

•

Ultralow Noise: 2.8 nV/

√Hz at 1 kHz

nV/

√Hz noise density with an ultralow THD+N of

•

Ultralow Total Harmonic Distortion + Noise:

–119.2 dB at 1 kHz, while driving a 32-

Ω load at 100-

–119 dB THD+N (142 mW/Ch into 32

Ω/Ch)

mW output power. The OPA1622 offers extremely-

high

ac

PSRR

and

CMRR

specifications

that

•

Wide Gain Bandwidth Product:

eliminate noise from power supplies, making the

32 MHz (G = +1000)

OPA1622 ideal for use in portable-audio applications.

•

High Slew Rate: 10 V/

μs

This device also has a high output-drive capability of

•

High Capacitive-Load Drive Capability: > 600 pF

+145 mA / –130 mA.

•

High Open-Loop Gain: 136 dB (600-

Ω Load)

The OPA1622 operates over a very wide supply

•

Low Quiescent Current: 2.6 mA per Channel

range of ±2 V to ±18 V, on only 2.6 mA of supply

current per channel. The OPA1622 op amp is unity-

•

Low-Power Shutdown Mode With Reduced Pop

gain stable and provides excellent dynamic behavior

and Click Noise: 5

μA per Channel

over a wide range of load conditions. The OPA1622

•

Short-Circuit Protection

includes a shutdown mode, allowing the amplifiers to

•

Wide Supply Range: ±2 V to ±18 V

be switched from normal operation to a standby

current that is typically less than 5 µA. This shutdown

•

Available in small VSON-10 µPackage

feature is specifically designed to eliminate click and

pop noise when transitioning into or out of shutdown

2 Applications

mode.

•

High-Fidelity (HiFi) Headphone Drivers

The OPA1622 features a unique internal layout for

•

Professional Audio Equipment

lowest crosstalk, and freedom from interactions

•

Analog and Digital Mixing Consoles

between

channels,

even

when

overdriven

or

overloaded. This device is specified from –40°C to

•

Audio Test and Measurement

+125°C.

•

High-End Blu-ray™ Players

•

High-End Audio and Video (A/V) Receivers

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPA1622

VSON (10)

3.00 mm × 3.00 mm

(1) For all available packages, see the package option addendum

at the end of the datasheet.

OPA1622 in a High-Fidelity Headphone Driver

FFT: 1 kHz, 32-

Ω Load, 50 mW

Application

1

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.