Datasheet

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Burr-BrownAudio

OPA1662

OPA1664

www.ti.com

SBOS489 –DECEMBER 2011

™

Low-Power, Low Noise and Distortion, Bipolar-Input

AUDIO OPERATIONAL AMPLIFIERS

Check for Samples: OPA1662, OPA1664

FEATURES

DESCRIPTION

The OPA1662 (dual) and OPA1664 (quad) series of

234

• Low Noise: 3.3 nV/√Hz at 1 kHz

bipolar-input operational amplifiers achieve a low 3.3

• Low Distortion: 0.00006% at 1 kHz

nV/√Hz noise density with an ultralow distortion of

• Low Quiescent Current:

0.00006% at 1 kHz. The OPA1662 and OPA1664

1.5 mA per Channel

series of op amps offer rail-to-rail output swing to

within 600 mV with 2-kΩ load, which increases

• Slew Rate: 17 V/μs

headroom and maximizes dynamic range. These

• Wide Gain Bandwidth: 22 MHz (G = +1)

devices also have a high output drive capability of

• Unity Gain Stable

±30 mA.

• Rail-to-Rail Output

These devices operate over a very wide supply range

• 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 OPA1662 and

±1.5 V to ±18 V, or +3 V to +36 V

OPA1664 op amps are unity-gain stable and provide

• Dual and Quad Versions Available

excellent dynamic behavior over a wide range of load

• Small Package Sizes:

conditions.

Dual: SO-8 and MSOP-8

These devices also feature completely independent

Quad: SO-14 and TSSOP-14

circuitry for lowest crosstalk and freedom from

interactions between channels, even when overdriven

APPLICATIONS

or overloaded.

• USB and Firewire Audio Systems

The OPA1662 and OPA1664 are specified

• Analog and Digital Mixers

from –40°C to +85°C. SoundPlus™

• Portable Recording Systems

• Audio Effects Processors

• High-End A/V Receivers

• High-End DVD and Blu-Ray™ Players

• HIGH-End Car Audio

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.

3Blu-Ray is a trademark of Blu-Ray Disc Association.

4All 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 (31 pages)

PAGE 1
OPA1662 OPA1664 Burr-Brown Audio SBOS489 – DECEMBER 2011 www.ti.com ™ Low-Power, Low Noise and Distortion, Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS Check for Samples: OPA1662, OPA1664 FEATURES DESCRIPTION • 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.
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OPA1662 OPA1664 SBOS489 – DECEMBER 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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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±15 V At TA = +25°C and RL = 2 kΩ, unless otherwise noted. VCM = VOUT = midsupply, unless otherwise noted. OPA1662, OPA1664 PARAMETER CONDITIONS MIN TYP MAX UNIT AUDIO PERFORMANCE THD+N Total harmonic distortion + noise IMD Intermodulation distortion G = +1, f = 1 kHz, VO = 3 VRMS G = +1, VO = 3 VRMS 0.00006 % –124 dB SMPTE/DIN two-tone, 4:1 (60 Hz and 7 kHz) 0.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±15 V (continued) At TA = +25°C and RL = 2 kΩ, unless otherwise noted. VCM = VOUT = midsupply, unless otherwise noted. OPA1662, OPA1664 PARAMETER CONDITIONS MIN TYP MAX UNIT POWER SUPPLY VS ±1.5 Specified voltage range Quiescent current (per channel) IQ IOUT = 0 A 1.5 IOUT = 0 A, TA = –40°C to +85° (4) ±18 V 1.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS: VS = +5 V (continued) At TA = +25°C and RL = 2 kΩ, unless otherwise noted. VCM = VOUT = midsupply, unless otherwise noted. OPA1662, OPA1664 PARAMETER CONDITIONS MIN TYP 90 100 MAX UNIT OPEN-LOOP GAIN Open-loop voltage gain (V–) + 0.6 V ≤ VO ≤ (V+) – 0.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted. INPUT VOLTAGE NOISE DENSITY AND INPUT CURRENT NOISE DENSITY vs FREQUENCY 0.1Hz TO 10Hz NOISE 100 100 10 1 1 0.1 1 10 100 1k Frequency (Hz) 10k Voltage Noise ( 50nV/div) 10 Current Noise (pA/ Hz) Voltage Noise (nV/ Hz) Voltage Noise Current Noise 0.1 100k Time (1s/div) G001 Figure 1.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted. THD+N RATIO vs FREQUENCY THD+N RATIO vs FREQUENCY 0.01 G = 10V/V, RL = 600Ω G = 10V/V, RL = 2kΩ G = +1V/V, RL = 600Ω G = +1V/V, RL = 2kΩ G = −1V/V, RL = 600Ω G = −1V/V, RL = 2kΩ 0.001 THD+N (%) THD+N (%) 0.01 0.0001 G = 10V/V, RL = 600Ω G = 10V/V, RL = 2kΩ G = +1V/V, RL = 600Ω G = +1V/V, RL = 2kΩ G = −1V/V, RL = 600Ω G = −1V/V, RL = 2kΩ 0.001 0.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted. INTERMODULATION DISTORTION vs OUTPUT AMPLITUDE THD+N RATIO vs OUTPUT AMPLITUDE 0.01 0.01 0.001 0.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted. SMALL-SIGNAL STEP RESPONSE SMALL-SIGNAL STEP RESPONSE G = −1 V/V CL = 10 pF VS = ±1.5 V VIN VOUT Voltage (25 mV/div) Voltage (25 mV/div) VIN VOUT G = −1 V/V CL = 10 pF Time (1 ms/div) G016 Figure 19. Figure 20. LARGE-SIGNAL STEP RESPONSE LARGE-SIGNAL STEP RESPONSE VIN VOUT VIN VOUT Voltage (2.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted. OPEN-LOOP GAIN vs TEMPERATURE 90 4 80 3.5 70 3 50 40 30 2 1.5 1 0.5 20 0 VS = ± 18 V VS = ± 1.5 V 10 0 RL = 10 kΩ RL = 2 kΩ RL = 600 Ω 2.5 60 AOL (µV) Phase Margin (°) PHASE MARGIN vs CAPACITIVE LOAD 0 50 100 −0.5 150 200 250 Capacitance (pF) 300 350 −1 −40 400 −15 10 G036 Figure 31.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = ±15 V, and RL = 2 kΩ, unless otherwise noted. SHORT-CIRCUIT CURRENT vs TEMPERATURE OUTPUT VOLTAGE vs OUTPUT CURRENT 20 15 55 Output Volage Swing (V) Short Circuit Current (mA) 60 50 45 40 35 +Isc −Isc 30 −40 −15 10 −55°C −40°C −25°C 0°C +25°C +85°C 5 0 −5 −10 −15 10 35 60 Temperature (°C) 85 110 135 −20 20 25 30 G027 35 40 45 Output Current (mA) 50 55 60 G028 Figure 37.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com APPLICATION INFORMATION applications do not require equal positive and negative output voltage swing. With the OPA166x series, power-supply voltages do not need to be equal. For example, the positive supply could be set to +25 V with the negative supply at –5 V. The OPA1662 and OPA1664 are unity-gain stable, precision dual and quad op amps with very low noise.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com The input terminals of the OPA1662 and OPA1664 are protected from excessive differential voltage with back-to-back diodes, as Figure 44 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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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com TOTAL HARMONIC DISTORTION MEASUREMENTS The OPA166x series op amps have excellent distortion characteristics. THD + noise is below 0.0006% (G = +1, VO = 3 VRMS, BW = 80kHz) throughout the audio frequency range, 20 Hz to 20 kHz, with a 2-kΩ load (see Figure 7 for characteristic performance). The distortion produced by the OPA166x series op amps is below the measurement limit of many commercially available distortion analyzers.
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OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com POWER DISSIPATION The OPA1662 and OPA1664 series op amps are capable of driving 2-kΩ loads with a power-supply voltage up to ±18 V and full operating temperature range. Internal power dissipation increases when operating at high supply voltages. Copper leadframe construction used in the OPA166x series op amps improves heat dissipation compared to conventional materials. Circuit board layout can also help minimize junction temperature rise.
PAGE 18
OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com If there is an uncertainty about the ability of the supply to absorb this current, external zener diodes may be added to the supply pins as shown in Figure 48. The zener voltage must be selected such that the diode does not turn on during normal operation. However, its zener voltage should be low enough so that the zener diode conducts if the supply pin begins to rise above the safe operating supply voltage level.
PAGE 19
OPA1662 OPA1664 SBOS489 – DECEMBER 2011 www.ti.com APPLICATION CIRCUIT An additional application idea is shown in Figure 49. 820 W 2200 pF +VA (+15 V) 0.1 mF 330 W IOUTL+ OPA166x 2700 pF -VA (-15 V) 680 W 620 W Audio DAC with Differential Current Outputs 0.1 mF +VA (+15 V) 0.1 mF 100 W 820 W OPA166x 8200 pF 2200 pF +VA (+15 V) L Ch Output -VA (-15 V) 0.1 mF 0.1 mF 680 W 620 W IOUTLOPA166x 330 W 2700 pF -VA (-15 V) 0.1 mF Figure 49.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 (4) Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Top-Side Marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Oct-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA1662AIDGKR VSSOP DGK OPA1662AIDR SOIC OPA1664AIDR SOIC OPA1664AIPWR TSSOP SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 3-Oct-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA1662AIDGKR VSSOP DGK 8 2500 364.0 364.0 27.0 OPA1662AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA1664AIDR SOIC D 14 2500 367.0 367.0 38.0 OPA1664AIPWR TSSOP PW 14 2000 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.