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  • FEATURES LOW DISTORTION: 0.0003% at 1kHz

    LOW NOISE: 10nV/Hz HIGH SLEW RATE: 25V/s WIDE GAIN-BANDWIDTH: 20MHz

    UNITY-GAIN STABLE

    WIDE SUPPLY RANGE: VS = 4.5 to 24V DRIVES 600 LOAD DUAL VERSION AVAILABLE (OPA2604)

    FET-Input, Low DistortionOPERATIONAL AMPLIFIER

    APPLICATIONS PROFESSIONAL AUDIO EQUIPMENT

    PCM DAC I/V CONVERTERS

    SPECTRAL ANALYSIS EQUIPMENT

    ACTIVE FILTERS

    TRANSDUCER AMPLIFIERS

    DATA ACQUISITION

    OPA604

    DESCRIPTIONThe OPA604 is a FET-input operational amplifier designedfor enhanced AC performance. Very low distortion, low noiseand wide bandwidth provide superior performance in highquality audio and other applications requiring excellent dy-namic performance.

    New circuit techniques and special laser trimming of dynamiccircuit performance yield very low harmonic distortion. Theresult is an op amp with exceptional sound quality. The low-noise FET input of the OPA604 provides wide dynamicrange, even with high source impedance. Offset voltage islaser-trimmed to minimize the need for interstage couplingcapacitors.

    The OPA604 is available in 8-pin plastic mini-DIP and SO-8surface-mount packages, specified for the 25C to +85Ctemperature range.

    DistortionRejectionCircuitry(1)

    (3)

    (+)

    (2)

    ()

    (7)V+

    (6)VO

    (4)V

    OutputStage(1)

    NOTE: (1) Patents Granted: #5053718, 5019789

    (5)

    (1)

    OPA604 OPA604

    SBOS019A JANUARY 1992 SEPTEMBER 2003

    www.ti.com

    PRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily includetesting of all parameters.

    Copyright 1992-2003, Texas Instruments Incorporated

    Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

    All trademarks are the property of their respective owners.

  • OPA6042SBOS019Awww.ti.com

    ABSOLUTE MAXIMUM RATINGS

    Power Supply Voltage ....................................................................... 25VInput Voltage ............................................................... (V)1V to (V+)+1VOutput Short Circuit to Ground ................................................ ContinuousOperating Temperature .................................................. 40C to +100CStorage Temperature ...................................................... 40C to +125CJunction Temperature .................................................................... +150CLead Temperature (soldering, 10s) AP .......................................... +300CLead Temperature (soldering, 3s) AU ............................................ +260C

    PIN CONFIGURATION

    Top View DIP, SOIC

    1

    2

    3

    4

    Offset Trim

    In

    +In

    VS

    8

    7

    6

    5

    No Internal Connection

    +VS

    Output

    Offset Trim

    ELECTROSTATICDISCHARGE SENSITIVITY

    Any integrated circuit can be damaged by ESD. Texas Instru-ments recommends that all integrated circuits be handled withappropriate precautions. Failure to observe proper handlingand installation procedures can cause damage.

    ESD damage can range from subtle performance degradationto complete device failure. Precision integrated circuits may bemore susceptible to damage because very small parametricchanges could cause the device not to meet published speci-fications.

    PACKAGE/ORDERING INFORMATION

    For the most current package and ordering information, seeto the Package Option Addendum at the end of this datasheet.

  • OPA604 3SBOS019A www.ti.com

    ELECTRICAL CHARACTERISTICSTA = +25C, VS = 15V, unless otherwise noted.

    OPA604AP, AU

    PARAMETER CONDITION MIN TYP MAX UNITS

    OFFSET VOLTAGEInput Offset Voltage 1 5 mVAverage Drift 8 V/CPower Supply Rejection VS = 5 to 24V 80 100 dB

    INPUT BIAS CURRENT(1)

    Input Bias Current VCM = 0V 50 pAInput Offset Current VCM = 0V 3 pA

    NOISEInput Voltage NoiseNoise Density: f = 10Hz 25 nV/Hz

    f = 100Hz 15 nV/Hzf = 1kHz 11 nV/Hzf = 10kHz 10 nV/Hz

    Voltage Noise, BW = 20Hz to 20kHz 1.5 VPPInput Bias Current NoiseCurrent Noise Density, f = 0.1Hz to 20kHz 4 fA/Hz

    INPUT VOLTAGE RANGECommon-Mode Input Range 12 13 VCommon-Mode Rejection VCM = 12V 80 100 dB

    INPUT IMPEDANCEDifferential 1012 || 8 || pFCommon-Mode 1012 || 10 || pF

    OPEN-LOOP GAINOpen-Loop Voltage Gain VO = 10V, RL = 1k 80 100 dB

    FREQUENCY RESPONSEGain-Bandwidth Product G = 100 20 MHzSlew Rate 20VPP, RL = 1k 15 25 V/sSettling Time: 0.01% G = 1, 10V Step 1.5 s

    0.1% 1 sTotal Harmonic Distortion + Noise (THD+N) G = 1, f = 1kHz 0.0003 %

    VO = 3.5Vrms, RL = 1k

    OUTPUTVoltage Output RL = 600 11 12 VCurrent Output VO = 12V 35 mAShort Circuit Current 40 mAOutput Resistance, Open-Loop 25

    POWER SUPPLYSpecified Operating Voltage 15 VOperating Voltage Range 4.5 24 VCurrent 5.3 7 mA

    TEMPERATURE RANGESpecification 25 +85 CStorage 40 +125 CThermal Resistance(2), JA 90 C/W

    NOTES: (1) Typical performance, measured fully warmed-up. (2) Soldered to circuit boardsee text.

  • OPA6044SBOS019Awww.ti.com

    TYPICAL CHARACTERISTICSTA = +25C, VS = 15V, unless otherwise noted.

    TOTAL HARMONIC DISTORTION + NOISEvs FREQUENCY

    Frequency (Hz)

    TH

    D +

    N (

    %)

    1

    0.1

    0.01

    0.001

    0.0001

    20 100 1k 10k 20k

    G = 100V/V

    G = 10V/V

    G = 1V/V

    Measurement BW = 80kHzSee Distortion Measure-ments for description oftest method.

    1k

    V =3.5Vrms

    O

    TOTAL HARMONIC DISTORTION + NOISEvs OUTPUT VOLTAGE

    Output Voltage (VPP)

    TH

    D +

    N (

    %)

    0.1 1 10 100

    0.1

    0.01

    0.001

    0.0001

    1k

    V O

    f = 1kHzMeasurement BW = 80kHz

    See Distortion Measurementsfor description of test method.

    OPEN-LOOP GAIN/PHASE vs FREQUENCY

    Frequency (Hz)

    Vol

    tage

    Gai

    n (d

    B)

    120

    100

    80

    60

    40

    20

    0

    201 10 100 1k 10k 100k 1M 10M

    0

    45

    90

    135

    180

    Pha

    se S

    hift

    (Deg

    rees

    )

    G

    INPUT VOLTAGE AND CURRENT NOISESPECTRAL DENSITY vs FREQUENCY

    Frequency (Hz)

    Vol

    tage

    Noi

    se (

    nV/

    Hz)

    1

    1k

    100

    10

    110 100 1k 10k 100k 1M

    Cur

    rent

    Noi

    se (

    fA/

    Hz)

    1k

    100

    10

    1

    Voltage Noise

    Current Noise

    INPUT BIAS AND INPUT OFFSET CURRENT vs TEMPERATURE

    Ambient Temperature (C)

    Inpu

    t Bia

    s C

    urre

    nt (

    pA)

    75

    100nA

    10nA

    1nA

    100

    10

    1

    Inpu

    t Offs

    et C

    urre

    nt (

    pA)

    10nA

    1nA

    100

    10

    1

    0.150 25 0 25 50 75 100 125

    InputOffset Current

    InputBias Current

    INPUT BIAS AND INPUT OFFSET CURRENT vs INPUT COMMON-MODE VOLTAGE

    Common-Mode Voltage (V)

    Inpu

    t Bia

    s C

    urre

    nt (

    pA)

    15

    10nA

    1nA

    100

    10

    Inpu

    t Offs

    et C

    urre

    nt (

    pA)

    1nA

    100

    10

    110 5 0 5 10 15

    InputOffset Current

    InputBias Current

  • OPA604 5SBOS019A www.ti.com

    TYPICAL CHARACTERISTICS (Cont.)TA = +25C, VS = 15V, unless otherwise noted.

    COMMON-MODE REJECTION vs COMMON-MODE VOLTAGE

    Common-Mode Voltage (V)

    Com

    mon

    -Mod

    e R

    ejec

    tion

    (dB

    )

    15

    120

    110

    100

    90

    8010 5 0 5 10 15

    POWER SUPPLY AND COMMON-MODEREJECTION vs FREQUENCY

    Frequency (Hz)

    Pow

    er S

    uppl

    y R

    ejec

    tion

    (dB

    )

    10

    120

    100

    80

    60

    40

    20

    0100 1k 10k 100k 1M 10M

    Com

    mon

    -Mod

    e R

    ejec

    tion

    (dB

    )120

    100

    80

    60

    40

    20

    0

    +PSR

    PSRCMR

    AOL, PSR, AND CMR vs SUPPLY VOLTAGE

    Supply Voltage (VS)

    AO

    L, P

    SR

    , CM

    R (

    dB)

    5

    120

    110

    100

    90

    80

    7010 15 20 25

    CMR

    AOL

    PSR

    GAIN-BANDWIDTH AND SLEW RATEvs TEMPERATURE

    Temperature (C)

    Gai

    n-B

    andw

    idth

    (M

    Hz)

    75

    28

    24

    20

    16

    1225 25 75 125

    Sle

    w R

    ate

    (V/

    s)

    30

    25

    20

    15

    1050 0 50 100

    Slew Rate

    Gain-BandwidthG = +100

    INPUT BIAS CURRENT vs TIME FROM POWER TURN-ON

    Time After Power Turn-On (min)

    Inpu

    t Bia

    s C

    urre

    nt (

    pA)

    0

    1nA

    100

    10

    11 2 3 4 5

    VS = 24V

    VS = 15V

    VS = 5V

    GAIN-BANDWIDTH AND SLEW RATEvs SUPPLY VOLTAGE

    Supply Voltage (VS)

    Gai

    n-B

    andw

    idth

    (M

    Hz)

    5

    28

    24

    20

    16

    1210 15 20 25

    Slew RateGain-BandwidthG = +100

    Sle

    w R

    ate

    (V/

    s)

    33

    29

    25

    21

    17

  • OPA6046SBOS019Awww.ti.com

    TYPICAL CHARACTERISTICS (Cont.)T

    A = +25C, V

    S = 15V, unless otherwise noted.

    0

    SETTLING TIME vs CLOSED-LOOP GAIN

    Closed-Loop Gain (V/V)

    Set

    tling

    Tim

    e (

    s)

    1

    5

    4

    3

    2

    1

    010 100 1000

    0.01%

    0.1%