OPA1612 Amplifiers Datasheet

OPA1612 Datasheet, PDF, Equivalent


Part Number

OPA1612

Description

Bipolar-Input Audio Operational Amplifiers

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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OPA1612
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OPA1611, OPA1612
SBOS450C – JULY 2009 – REVISED AUGUST 2014
OPA161x SoundPlus™ High-Performance, Bipolar-Input Audio Operational Amplifiers
1 Features
1 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
• Single and Dual Versions Available
2 Applications
• Professional Audio Equipment
• Microphone Preamplifiers
• Analog and Digital Mixing Consoles
• Broadcast Studio Equipment
• Audio Test And Measurement
• High-End A/V Receivers
0.01
0.001
THD+N Ratio vs Output Amplitude
1kHz Signal
BW = 80kHz
RSOURCE = 0W
-80
-100
3 Description
The OPA1611 (single) and OPA1612 (dual) bipolar-
input operational amplifiers achieve very low
1.1-nV/Hz noise density with an ultralow distortion of
0.000015% at 1 kHz. The OPA1611 and OPA1612
offer rail-to-rail output swing to within 600 mV with a
2-kload, 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 OPA1611 and OPA1612 op amps
are 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.
Both the OPA1611 and OPA1612 are available in
SOIC-8 packages and the OPA1612 is available in
SON-8. These devices are specified from –40°C to
+85°C.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPA1611
SOIC (8)
4.90 mm × 3.91 mm
OPA1612
SOIC (8)
SON (8)
4.90 mm × 3.91 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
space
space
Functional Block Diagram
V+
0.0001
0.00001
0.000001
0.01
G = +1, RL = 600W
G = +1, RL = 2kW
G = -1, RL = 600W
G = -1, RL = 2kW
G = +10, RL = 600W
G = +10, RL = 2kW
0.1 1
Output Amplitude (VRMS)
-120
-140
-160
10 20
IN-
IN+
Pre-Output Driver
V-
OUT
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.

OPA1612
OPA1611, OPA1612
SBOS450C – JULY 2009 – REVISED AUGUST 2014
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 Handling Ratings....................................................... 4
6.3 Recommended Operating Conditions....................... 4
6.4 Electrical Characteristics: VS = ±2.25 V to ±18 V .... 5
6.5 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 12
7.1 Overview ................................................................. 12
7.2 Functional Block Diagram ....................................... 12
7.3 Feature Description................................................. 12
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Noise Performance ................................................. 15
8.3 Total Harmonic Distortion Measurements............... 17
8.4 Capacitive Loads..................................................... 17
8.5 Application Circuit ................................................... 18
9 Power-Supply Recommendations...................... 19
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 20
11 Device and Documentation Support ................. 21
11.1 Documentation Support ........................................ 21
11.2 Related Links ........................................................ 21
11.3 Trademarks ........................................................... 21
11.4 Electrostatic Discharge Caution ............................ 21
11.5 Glossary ................................................................ 21
12 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
Changes from Revision B (July 2011) to Revision C
Page
• Changed format to meet latest data sheet standards; added new sections, and moved existing sections........................... 1
• Added SON-8 (DRG) package to data sheet ......................................................................................................................... 1
• Changed SO to SOIC throughout document to match industry standard term...................................................................... 1
• Added front-page curve .......................................................................................................................................................... 1
• Added title to block diagram ................................................................................................................................................... 1
• Deleted Package Information table; see package option addendum..................................................................................... 3
Changes from Revision A (August 2009) to Revision B
Page
• Revised Features list items .................................................................................................................................................... 1
• Updated front-page figure....................................................................................................................................................... 1
• Added max specification for input voltage noise density at f = 1kHz .................................................................................... 5
• Corrected typo in footnote 1 for Electrical Characteristics ..................................................................................................... 5
• Revised Figure 4 .................................................................................................................................................................... 7
• Updated Figure 7.................................................................................................................................................................... 7
• Changed Figure 9 .................................................................................................................................................................. 7
• Revised Figure 11 .................................................................................................................................................................. 7
• Corrected typo in Figure 15 .................................................................................................................................................... 8
• Updated Figure 29................................................................................................................................................................ 12
• Revised fourth paragraph of Electrincal Overstress section ................................................................................................ 13
• Revised table in Figure 34.................................................................................................................................................... 17
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Product Folder Links: OPA1611 OPA1612


Features Product Folder Sample & Buy Technical Documents Tools & Software Support & Community OPA1611, OPA1612 SBOS450C JULY 2009 – REVISED AUGUST 2014 OPA 161x SoundPlus™ High-Performance, Bip olar-Input Audio Operational Amplifiers 1 Features •1 Superior Sound Qualit y • 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 Out put • Wide Supply Range: ±2.25 V to ±18 V • Single and Dual Versions Ava ilable 2 Applications • Professional Audio Equipment • Microphone Preampli fiers • Analog and Digital Mixing Con soles • Broadcast Studio Equipment Audio Test And Measurement • High-E nd A/V Receivers 0.01 0.001 THD+N Rat io vs Output Amplitude 1kHz Signal BW = 80kHz RSOURCE = 0W -80 -100 3 Descri ption The OPA1611 (single) and OPA1612 (dual) bipolarinput operational amplifiers achieve very low 1.1-nV/√H.
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