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OPA1622 Datasheet Preview

OPA1622 Datasheet

High-Fidelity Bipolar-Input Audio Operational Amplifier

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OPA1622
SBOS727B – NOVEMBER 2015 – REVISED MAY 2016
OPA1622 SoundPlus™ High-Fidelity, Bipolar-Input, Audio Operational Amplifier
1 Features
1 High-Fidelity Sound Quality
• Ultralow Noise: 2.8 nV/Hz at 1 kHz
• Ultralow Total Harmonic Distortion + Noise:
–119 dB THD+N (142 mW/Ch into 32 Ω/Ch)
• Wide Gain Bandwidth Product:
32 MHz (G = +1000)
• High Slew Rate: 10 V/μs
• High Capacitive-Load Drive Capability: > 600 pF
• High Open-Loop Gain: 136 dB (600-Ω Load)
• Low Quiescent Current: 2.6 mA per Channel
• Low-Power Shutdown Mode With Reduced Pop
and Click Noise: 5 μA per Channel
• Short-Circuit Protection
• Wide Supply Range: ±2 V to ±18 V
• Available in small VSON-10 µPackage
2 Applications
• High-Fidelity (HiFi) Headphone Drivers
• Professional Audio Equipment
• Analog and Digital Mixing Consoles
• Audio Test and Measurement
• High-End Blu-ray™ Players
• High-End Audio and Video (A/V) Receivers
3 Description
The OPA1622, dual, bipolar-input, SoundPlus™
audio operational amplifier achieves a very low,
2.8-nV/Hz noise density with an ultralow THD+N of
–119.2 dB at 1 kHz and drives a 32-Ω load at 100-
mW output power. The OPA1622 offers extremely-
high ac PSRR and CMRR specifications that
eliminate noise from power supplies, making the
OPA1622 ideal for use in portable-audio applications.
This device also has a high output-drive capability of
+145 mA per –130 mA.
The OPA1622 operates over a very wide supply
range of ±2 V to ±18 V, on only 2.6 mA of supply
current per channel. The OPA1622 op amp is unity-
gain stable and provides excellent dynamic behavior
over a wide range of load conditions. The OPA1622
includes a shutdown mode, allowing the amplifiers to
be switched from normal operation to a standby
current that is typically less than 5 µA. This shutdown
feature is specifically designed to eliminate click and
pop noise when transitioning into or out of shutdown
mode.
The OPA1622 features a unique internal layout for
lowest crosstalk, and freedom from interactions
between channels, even when overdriven or
overloaded. This device is specified from –40°C to
+125°C.
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
Application
C1 470 pF
VDC
ROUT
VAC
VAC
ROUT
Audio DAC
R1
499
R3
499
R4
768
R2
768
-
+ OPA1622
Headphone
Output
C2
470 pF
Copyright © 2016, Texas Instruments Incorporated
FFT: 1 kHz, 32-Ω Load, 50 mW
0
±20
±40
±60
±80
±100
±120
-133.6 dBc (Second Harmonic)
±140
±160
±180
0
5k 10k 15k
Frequency (Hz)
20k
C005
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.




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OPA1622 Datasheet Preview

OPA1622 Datasheet

High-Fidelity Bipolar-Input Audio Operational Amplifier

No Preview Available !

OPA1622
SBOS727B – NOVEMBER 2015 – REVISED MAY 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics: ........................................ 5
6.6 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 14
7.1 Overview ................................................................. 14
7.2 Functional Block Diagram ....................................... 14
7.3 Feature Description................................................. 14
7.4 Device Functional Modes........................................ 17
8 Application and Implementation ........................ 19
8.1 Application Information............................................ 19
8.2 Typical Application ................................................. 22
9 Power Supply Recommendations...................... 26
10 Layout................................................................... 26
10.1 Layout Guidelines ................................................. 26
10.2 Layout Example .................................................... 26
11 Device and Documentation Support ................. 27
11.1 Device Support...................................................... 27
11.2 Documentation Support ........................................ 27
11.3 Community Resources.......................................... 27
11.4 Trademarks ........................................................... 27
11.5 Electrostatic Discharge Caution ............................ 28
11.6 Glossary ................................................................ 28
12 Mechanical, Packaging, and Orderable
Information ........................................................... 28
4 Revision History
Changes from Revision A (November 2015) to Revision B
Page
• Added TI Design .................................................................................................................................................................... 1
• Changed pin number of V+ pin in Pin Functions table .......................................................................................................... 3
• Changed format of Supply voltage parameter in Recommended Operating Conditions table .............................................. 4
Changes from Original (November 2015) to Revision A
Page
• Changed from product preview to production data ............................................................................................................... 1
2 Submit Documentation Feedback
Product Folder Links: OPA1622
Copyright © 2015–2016, Texas Instruments Incorporated


Part Number OPA1622
Description High-Fidelity Bipolar-Input Audio Operational Amplifier
Maker etcTI
Total Page 30 Pages
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