Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Audio SOIC 8

OPA1612

OPA1611

Burr-BrownAudio

Pre-Output Driver

OUT

V-

V+

IN-

IN+

OPA1611

OPA1612

www.ti.com

SBOS450B –JULY 2009–REVISED JULY 2011

™

High-Performance, Bipolar-Input

AUDIO OPERATIONAL AMPLIFIERS

Check for Samples: OPA1611, OPA1612

FEATURES

DESCRIPTION

The OPA1611 (single) and OPA1612 (dual)

• SUPERIOR SOUND QUALITY

bipolar-input operational amplifiers achieve very low

• ULTRALOW NOISE: 1.1nV/√Hz at 1kHz

1.1nV/√Hz noise density with an ultralow distortion of

• ULTRALOW DISTORTION:

0.000015% at 1kHz. The OPA1611 and OPA1612

0.000015% at 1kHz

offer rail-to-rail output swing to within 600mV with a

• HIGH SLEW RATE: 27V/μs

2kΩ load, which increases headroom and maximizes

dynamic range. These devices also have a high

• WIDE BANDWIDTH: 40MHz (G = +1)

output drive capability of ±30mA.

• HIGH OPEN-LOOP GAIN: 130dB

• UNITY GAIN STABLE

These devices operate over a very wide supply range

of ±2.25V to ±18V, on only 3.6mA of supply current

• LOW QUIESCENT CURRENT:

per channel. The OPA1611 and OPA1612 op amps

3.6mA PER CHANNEL

are unity-gain stable and provide excellent dynamic

• RAIL-TO-RAIL OUTPUT

behavior over a wide range of load conditions.

• WIDE SUPPLY RANGE: ±2.25V to ±18V

The dual version features completely independent

• SINGLE AND DUAL VERSIONS AVAILABLE

circuitry for lowest crosstalk and freedom from

interactions between channels, even when overdriven

APPLICATIONS

or overloaded.

• PROFESSIONAL AUDIO EQUIPMENT

Both the OPA1611 and OPA1612 are available in

• MICROPHONE PREAMPLIFIERS

SO-8 packages and are specified from –40°C to

• ANALOG AND DIGITAL MIXING CONSOLES

+85°C. SoundPlus™

• BROADCAST STUDIO EQUIPMENT

• AUDIO TEST AND MEASUREMENT

• HIGH-END A/V RECEIVERS

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2SoundPlus is a trademark of Texas Instruments Incorporated.

3All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (23 pages)

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OP A1 611 OP A1 612 OPA1611 OPA1612 Burr-Brown Audio SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com ™ High-Performance, Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS Check for Samples: OPA1611, OPA1612 FEATURES DESCRIPTION • • • The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1.1nV/√Hz noise density with an ultralow distortion of 0.000015% at 1kHz.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±2.25V to ±18V At TA = +25°C and RL = 2kΩ, unless otherwise noted. VCM = VOUT = midsupply, unless otherwise noted. Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. OPA1611AI, OPA1612AI PARAMETER CONDITIONS MIN TYP MAX UNIT AUDIO PERFORMANCE Total Harmonic Distortion + Noise Intermodulation Distortion THD+N G = +1, f = 1kHz, VO = 3VRMS IMD 0.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±2.25V to ±18V (continued) At TA = +25°C and RL = 2kΩ, unless otherwise noted. VCM = VOUT = midsupply, unless otherwise noted. Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. OPA1611AI, OPA1612AI PARAMETER CONDITIONS MIN TYP MAX UNIT AOL (V–) + 0.2V ≤ VO ≤ (V+) – 0.2V, RL = 10kΩ 114 130 dB AOL (V–) + 0.6V ≤ VO ≤ (V+) – 0.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted. INPUT VOLTAGE NOISE DENSITY AND INPUT CURRENT NOISE DENSITY vs FREQUENCY 0.1Hz TO 10Hz NOISE 20nV/div Voltage Noise Density (nV/ÖHz) Current Noise Density (pA/ÖHz) 100 Voltage Noise Density 10 Current Noise Density 1 0.1 1 10 100 1k 10k Time (1s/div) 100k Frequency (Hz) Figure 1. Figure 2.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted. THD+N RATIO vs FREQUENCY THD+N RATIO vs FREQUENCY G = -1, RL = 2kW G = +10, RL = 600W G = +10, RL = 2kW VOUT = 3VRMS BW = 80kHz 0.00001 10 100 1k Total Harmonic Distortion + Noise (%) Total Harmonic Distortion + Noise (%) G = +1, RL = 600W G = +1, RL = 2kW G = -1, RL = 600W 0.01 -140 RSOURCE OPA1611 -15V 0.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted. CHANNEL SEPARATION vs FREQUENCY -100 VS = ±15V VOUT = 3.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted. SMALL-SIGNAL OVERSHOOT vs CAPACITIVE LOAD (100mV Output Step) SMALL-SIGNAL OVERSHOOT vs CAPACITIVE LOAD (100mV Output Step) 25 50 CF = 5.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted. QUIESCENT CURRENT vs SUPPLY VOLTAGE SHORT-CIRCUIT CURRENT vs TEMPERATURE 4.0 75 3.9 70 3.8 65 60 3.6 ISC (mA) IQ (mA) 3.7 -ISC 3.5 3.4 55 +ISC 50 45 3.3 40 3,2 35 Specified Supply-Voltage Range 3.1 3.0 30 0 4 8 12 16 20 24 28 32 36 -50 -25 0 75 100 Figure 26.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com APPLICATION INFORMATION applications do not require equal positive and negative output voltage swing. With the OPA161x series, power-supply voltages do not need to be equal. For example, the positive supply could be set to +25V with the negative supply at –5V. The OPA1611 and OPA1612 are unity-gain stable, precision op amps with very low noise; these devices are also free from output phase reversal.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com The input terminals of the OPA1611 and the OPA1612 are protected from excessive differential voltage with back-to-back diodes, as Figure 30 illustrates. In most circuit applications, the input protection circuitry has no consequence. However, in low-gain or G = +1 circuits, fast ramping input signals can forward bias these diodes because the output of the amplifier cannot respond rapidly enough to the input ramp.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com Figure 32 illustrates both inverting and noninverting op amp circuit configurations with gain. In circuit configurations with gain, the feedback network resistors also contribute noise. The current noise of the op amp reacts with the feedback resistors to create additional noise components. The feedback resistor values can generally be chosen to make these noise sources negligible.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com TOTAL HARMONIC DISTORTION MEASUREMENTS The OPA161x series op amps have excellent distortion characteristics. THD + Noise is below 0.00008% (G = +1, VO = 3VRMS, BW = 80kHz) throughout the audio frequency range, 20Hz to 20kHz, with a 2kΩ load (see Figure 7 for characteristic performance). The distortion produced by OPA1611 series op amps is below the measurement limit of many commercially available distortion analyzers.
PAGE 14
OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 POWER DISSIPATION OPA1611 and OPA1612 series op amps are capable of driving 2kΩ loads with a power-supply voltage up to ±18V. Internal power dissipation increases when operating at high supply voltages. Copper leadframe construction used in the OPA1611 and OPA1612 series op amps improves heat dissipation compared to conventional materials. Circuit board layout can also help minimize junction temperature rise.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com When the operational amplifier connects into a circuit such as the one Figure 34 shows, the ESD protection components are intended to remain inactive and not become involved in the application circuit operation. However, circumstances may arise where an applied voltage exceeds the operating voltage range of a given pin.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com APPLICATION CIRCUIT 820W 2200pF +VA (+15V) 0.1mF 330W IOUTL+ OPA1611 2700pF -VA (-15V) 680W 620W Audio DAC with Differential Current Outputs 0.1mF +VA (+15V) 0.1mF 100W 820W OPA1611 8200pF 2200pF +VA (+15V) L Ch Output -VA (-15V) 0.1mF 0.1mF 680W 620W IOUTLOPA1611 330W 2700pF -VA (-15V) 0.1mF Figure 35.
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OPA1611 OPA1612 SBOS450B – JULY 2009 – REVISED JULY 2011 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision A (August, 2009) to Revision B Page • Revised Features list items ................................................................................................................................................... 1 • Updated front-page figure ...........................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant OPA1611AIDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 OPA1612AIDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA1611AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA1612AIDR SOIC D 8 2500 367.0 367.0 35.
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