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OPA
134
OPA
213
4
OPA
413
4
OPA
134
OPA
2134
OPA
413
4
OPA134 OPA2134 OPA4134
High Performance AUDIO OPERATIONAL AMPLIFIERS
TM
FEATURES
q SUPERIOR SOUND QUALITY q ULTRA LOW DISTORTION: 0.00008% q LOW NOISE: 8nV/Hz q TRUE FET-INPUT: IB = 5pA q HIGH SPEED: SLEW RATE: 20V/s BANDWIDTH: 8MHz q HIGH OPEN-LOOP GAIN: 120dB (600) q WIDE SUPPLY RANGE: 2.5V to 18V q SINGLE, DUAL, AND QUAD VERSIONS
DESCRIPTION
The OPA134 series are ultra-low distortion, low noise operational amplifiers fully specified for audio applications. A true FET input stage was incorporated to provide superior sound quality and speed for exceptional audio performance. This in combination with high output drive capability and excellent dc performance allows use in a wide variety of demanding applications. In addition, the OPA134's wide output swing, to within 1V of the rails, allows increased headroom making it ideal for use in any audio circuit. OPA134 op amps are easy to use and free from phase inversion and overload problems often found in common FET-input op amps. They can be operated from 2.5V to 18V power supplies. Input cascode circuitry provides excellent common-mode rejection and maintains low input bias current over its wide input voltage range, minimizing distortion. OPA134 series op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions, including high load capacitance. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded. Single and dual versions are available in 8-pin DIP and SO-8 surface-mount packages in standard configurations. The quad is available in 14-pin DIP and SO-14 surface mount packages. All are specified for -40C to +85C operation. A SPICE macromodel is available for design analysis.
OPA4134 Out A -In A 1 2 A +In A 3 4 5 B -In B Out B 6 7 14-Pin DIP SO-14 C 9 8 -In C Out C D 12 11 10 +In D V- +In C 14 13 Out D -In D
APPLICATIONS
q PROFESSIONAL AUDIO AND MUSIC q LINE DRIVERS q LINE RECEIVERS q MULTIMEDIA AUDIO q ACTIVE FILTERS q PREAMPLIFIERS q INTEGRATORS q CROSSOVER NETWORKS
OPA134 Offset Trim -In +In V- 1 2 3 4 8-Pin DIP, SO-8 8 7 6 5 Offset Trim V+
OPA2134
Output NC
Out A -In A +In A V-
1 2 3 4 8-Pin DIP, SO-8 A B
8 7 6 5
V+ Out B -In B +In B
V+ +In B
International Airport Industrial Park * Mailing Address: PO Box 11400, Tucson, AZ 85734 * Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 * Tel: (520) 746-1111 * Twx: 910-952-1111 Internet: http://www.burr-brown.com/ * FAXLine: (800) 548-6133 (US/Canada Only) * Cable: BBRCORP * Telex: 066-6491 * FAX: (520) 889-1510 * Immediate Product Info: (800) 548-6132
(c) 1996 Burr-Brown Corporation
PDS-1339C
Printed in U.S.A. December, 1997
SBOS058
SPECIFICATIONS
At TA = +25C, VS = 15V, unless otherwise noted. OPA134PA, UA OPA2134PA, UA OPA4134PA, UA PARAMETER AUDIO PERFORMANCE Total Harmonic Distortion + Noise CONDITION G = 1, f = 1kHz, VO = 3Vrms RL = 2k RL = 600 G = 1, f = 1kHz, VO = 1Vp-p THD < 0.01%, RL = 2k, VS = 18V MIN TYP MAX UNITS
Intermodulation Distortion Headroom(1) FREQUENCY RESPONSE Gain-Bandwidth Product Slew Rate(2) Full Power Bandwidth Settling Time 0.1% 0.01% Overload Recovery Time NOISE Input Voltage Noise Noise Voltage, f = 20Hz to 20kHz Noise Density, f = 1kHz Current Noise Density, f = 1kHz OFFSET VOLTAGE Input Offset Voltage vs Temperature vs Power Supply (PSRR) Channel Separation (Dual, Quad) INPUT BIAS CURRENT Input Bias Current(4) vs Temperature(3) Input Offset Current(4) INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection INPUT IMPEDANCE Differential Common-Mode OPEN-LOOP GAIN Open-Loop Voltage Gain
0.00008 0.00015 -98 23.6 8 20 1.3 0.7 1 0.5
% % dB dBu MHz V/s MHz s s s
15 G = 1, 10V Step, CL = 100pF G = 1, 10V Step, CL = 100pF (VIN) * (Gain) = VS
1.2 8 3 0.5 1 2 106 135 130 +5 See Typical Curve 2 (V-)+2.5 86 13 100 90 1013 || 2 1013 || 5 104 104 104 (V-)+0.5 (V-)+1.2 (V-)+2.2 35 0.01 10 40 See Typical Curve 15 4 -40 -55 -55 100 150 80 110 120 120 120 (V+)-1.2 (V+)-1.5 (V+)-2.5 2 3(3)
Vrms nV/Hz fA/Hz mV mV V/C dB dB dB pA nA pA V dB dB || pF || pF dB dB dB V V V mA mA
TA = -40C to +85C TA = -40C to +85C VS = 2.5V to 18V dc, RL = 2k f = 20kHz, RL = 2k VCM =0V VCM =0V
90
100 5 50 (V+)-2.5
VCM = -12.5V to +12.5V TA = -40C to +85C
VCM = -12.5V to +12.5V RL = 10k, VO = -14.5V to +13.8V RL = 2k, VO = -13.8V to +13.5V RL = 600, VO = -12.8V to +12.5V RL = 10k RL = 2k RL = 600 f = 10kHz f = 10kHz
OUTPUT Voltage Output
Output Current Output Impedance, Closed-Loop(5) Open-Loop Short-Circuit Current Capacitive Load Drive (Stable Operation) POWER SUPPLY Specified Operating Voltage Operating Voltage Range Quiescent Current (per amplifier) TEMPERATURE RANGE Specified Range Operating Range Storage Thermal Resistance, JA 8-Pin DIP SO-8 Surface-Mount 14-Pin DIP SO-14 Surface-Mount
2.5 IO = 0
18 5 +85 +125 +125
V V mA C C C C/W C/W C/W C/W
NOTES: (1) dBu = 20*log (Vrms/0.7746) where Vrms is the maximum output voltage for which THD+Noise is less than 0.01%. See THD+Noise text. (2) Guaranteed by design. (3) Guaranteed by wafer-level test to 95% confidence level. (4) High-speed test at TJ = 25C. (5) See "Closed-Loop Output Impedance vs Frequency" typical curve.
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OPA134/2134/4134
2
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage, V+ to V- .................................................................... 36V Input Voltage .................................................... (V-) -0.7V to (V+) +0.7V Output Short-Circuit(2) .............................................................. Continuous Operating Temperature ................................................. -40C to +125C Storage Temperature ..................................................... -55C to +125C Junction Temperature ...................................................................... 150C Lead Temperature (soldering, 10s) ................................................. 300C NOTES: (1) Stresses above these ratings may cause permanent damage. (2) Short-circuit to ground, one amplifier per package.
ELECTROSTATIC DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown 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. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
PACKAGE/ORDERING INFORMATION
PACKAGE DRAWING NUMBER(1) TEMPERATURE RANGE
PRODUCT Single OPA134PA OPA134UA Dual OPA2134PA OPA2134UA Quad OPA4134PA OPA4134UA
PACKAGE
8-Pin Plastic DIP SO-8 Surface-Mount 8-Pin Plastic DIP SO-8 Surface-Mount 14-Pin Plastic DIP SO-14 Surface-Mount
006 182 006 182 010 235
-40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book.
TYPICAL PERFORMANCE CURVES
At TA = +25C, VS = 15V, R L = 2k, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 0.1 RL 2k 600
SMPTE INTERMODULATION DISTORTION vs OUTPUT AMPLITUDE 5 1 G = +1 f = 1kHz RL = 2k
0.01 THD+Noise (%)
IMD (%)
0.1 OPA134 OP176 0.010 OPA134 Baseline
0.001 G = +10 0.0001 G = +1 VO = 3Vrms 0.00001 10 100 1k Frequency (Hz) 10k 100k
0.001 0.0005 30m 0.1 1 Output Amplitude (Vpp) 10 30
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
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OPA134/2134/4134
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25C, VS = 15V, R L = 2k, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 0.01 VO = 10Vrms RL = 2k
THD+Noise (%)
THD+Noise (%)
HEADROOM - TOTAL HARMONIC DISTORTION + NOISE vs OUTPUT AMPLITUDE 1 VS = 18V RL = 2k f = 1kHz 0.1 THD < 0.01% OPA134 - 11.7Vrms OP176 - 11.1Vrms
0.001
VS = 16 0.0001
0.010
OPA134 OP176
OPA134
VS = 17 0.00001 20 100
VS = 18 1k Frequency (Hz) 10k 20k
0.001 0.0005 Baseline 0.1 1 Output Amplitude (Vrms) 10 20
HARMONIC DISTORTION + NOISE vs FREQUENCY 0.01 2nd Harmonic 3rd Harmonic
Voltage Noise (nV/Hz)
VOLTAGE NOISE vs SOURCE RESISTANCE 1k OP176+ Resistor
Amplitude (% of Fundamentals)
0.001
100
0.0001
RL
=6
00
10
0.00001
RL
k =2
OPA134+ Resistor
1 Resistor Noise Only Vn (total) = (inRS)2 + en2 + 4kTRS 10k 100k 1M 10M
VO = 1Vrms 0.000001 20 100 1k Frequency (Hz) 10k 20k
0.1 10 100 1k Source Resistance ()
INPUT VOLTAGE AND CURRENT NOISE SPECTRAL DENSITY vs FREQUENCY 1k
INPUT-REFERRED NOISE VOLTAGE vs NOISE BANDWIDTH 100 RS = 20
Voltage Noise (nV/Hz)
Current Noise (fA/Hz)
Noise Voltage (V)
100 Voltage Noise 10
10 Peak-to-Peak
1 RMS
Current Noise 1 1 10 100 1k Frequency (Hz) 10k 100k 1M
0.1 1 10 100 1k 10k 100k Noise Bandwidth (Hz)
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OPA134/2134/4134
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TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.
OPEN-LOOP GAIN/PHASE vs FREQUENCY 160 140 0
CLOSED-LOOP GAIN vs FREQUENCY 50 40
Closed-Loop Gain (dB)
-45
Phase Shift ()
120
Voltage Gain (dB)
G = +100 30 20 G = +10 10 0 G = +1 -10 -20
100 80 60 40 20 0 -20 0.1 1 10 100 1k 10k 100k 1M G
-90
-135
-180 10M
1k
10k
100k Frequency (Hz)
1M
10M
Frequency (Hz)
POWER SUPPLY AND COMMON-MODE REJECTION vs FREQUENCY 120 100
PSR, CMR (dB)
CHANNEL SEPARATION vs FREQUENCY 160 RL =
-PSR
Channel Separation (dB)
140
80 60 40 20 0 10 100 1k 10k 100k 1M Frequency (Hz) +PSR CMR
120
100
Dual and quad devices. G = 1, all channels. Quad measured channel A to D or B to C--other combinations yield improved rejection. 100 1k Frequency (Hz)
RL = 2k
80 10k 100k
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY 30 VS = 15V
CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY 10
Closed-Loop Output Impedance ()
Maximum output voltage without slew-rate induced distortion
Output Voltage (Vp-p)
1
Note: Open-Loop Output Impedance at f = 10kHz is 10
20
0.1 G = +100 G = +10 0.001 G = +2 G = +1 0.0001 10 100 1k Frequency (Hz) 10k 100k
10 VS = 5V VS = 2.5V 10k 100k Frequency (Hz) 1M 10M
0.01
0
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OPA134/2134/4134
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25C, VS = 15V, R L = 2k, unless otherwise noted.
INPUT BIAS CURRENT vs TEMPERATURE 100k 10k High Speed Test Warmed Up 10 9
INPUT BIAS CURRENT vs INPUT COMMON-MODE VOLTAGE High Speed Test
Input Bias Current (pA)
Input Bias Current (pA)
-25 0 25 50 75 100 125
8 7 6 5 4 3 2 1 0 -15 -10 -5 0 5 10 15
1k 100 Dual 10 1 0.1 -75 -50 Ambient Temperature (C) Single
Common-Mode Voltage (V)
OPEN-LOOP GAIN vs TEMPERATURE 150 RL = 600 140
Open-Loop Gain (dB)
CMR, PSR vs TEMPERATURE 120
RL = 2k 130
CMR, PSR (dB)
110 PSR
120 RL = 10k 110
FPO
-75 -50 -25 0 25 50 75 100 125
100 CMR 90 -75 -50 -25 0 25 50 75 100 125
100 Temperature (C)
Ambient Temperature (C)
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT vs TEMPERATURE 4.3 60
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 15 14 VIN = 15V -55C 25C 25C 125C 85C 125C 85C 13 12 11 10 -10 -11 -12 -13 -14 -15 0 VIN = -15V 10 20 30 40 50 60 25C -55C
Quiescent Current Per Amp (mA)
4.1
ISC IQ
40
4.0
30
3.9
20
3.8 -75 -50 -25 0 25 50 75 100 125 Ambient Temperature (C)
10
Output Voltage Swing (V)
Short-Circuit Current (mA)
4.2
50
Output Current (mA)
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OPA134/2134/4134
6
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25C, VS = 15V, RL = 2k, unless otherwise noted.
OFFSET VOLTAGE PRODUCTION DISTRIBUTION 18 16 Typical production distribution of packaged units.
12 10
OFFSET VOLTAGE DRIFT PRODUCTION DISTRIBUTION Typical production distribution of packaged units.
Percent of Amplifiers (%)
Percent of Amplifiers (%)
14 12 10 8 6 4 2 0
8 6 4 2 0
-2000 -1800 -1600 -1400 -1200 -1000 -800 -600 -400 -200 0 200 400 600 800 1000 1200 1400 1600 1800 2000
0.5
1.5
2.5
3.5
4.5
5.5
6.5
7.5
8.5
9.5
10.5
11.5
Offset Voltage (V)
Offset Voltage Drift (V/C)
SMALL-SIGNAL STEP RESPONSE G =1, CL = 100pF
LARGE-SIGNAL STEP RESPONSE G = 1, CL = 100pF
50mV/div
5V/div
200ns/div
1s/div
SETTLING TIME vs CLOSED-LOOP GAIN 100
SMALL-SIGNAL OVERSHOOT vs LOAD CAPACITANCE 60 50 G = +1 G = -1
Settling Time (s)
Overshoot (%)
10
0.01%
40 30 20 10
0.1% 1
G = 10
0.1 1 10 100 1000 Closed-Loop Gain (V/V)
0 100pF
1nF Load Capacitance
12.5
10nF
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OPA134/2134/4134
APPLICATIONS INFORMATION
OPA134 series op amps are unity-gain stable and suitable for a wide range of audio and general-purpose applications. All circuitry is completely independent in the dual version, assuring normal behavior when one amplifier in a package is overdriven or short-circuited. Power supply pins should be bypassed with 10nF ceramic capacitors or larger to minimize power supply noise. OPERATING VOLTAGE OPA134 series op amps operate with power supplies from 2.5V to 18V with excellent performance. Although specifications are production tested with 15V supplies, most behavior remains unchanged throughout the full operating voltage range. Parameters which vary significantly with operating voltage are shown in the typical performance curves. OFFSET VOLTAGE TRIM Offset voltage of OPA134 series amplifiers is laser trimmed and usually requires no user adjustment. The OPA134 (single op amp version) provides offset trim connections on pins 1 and 8, identical to 5534 amplifiers. Offset voltage can be adjusted by connecting a potentiometer as shown in Figure 1. This adjustment should be used only to null the offset of the op amp, not to adjust system offset or offset produced by the signal source. Nulling offset could change the offset voltage drift behavior of the op amp. While it is not possible to predict the exact change in drift, the effect is usually small. TOTAL HARMONIC DISTORTION OPA134 series op amps have excellent distortion characteristics. THD+Noise is below 0.0004% throughout the audio frequency range, 20Hz to 20kHz, with a 2k load. In addition, distortion remains relatively flat through its wide output voltage swing range, providing increased headroom compared to other audio amplifiers, including the OP176/275.
10nF
V+ Trim Range: 4mV typ
100k 7 2 3 10nF 1 8 OPA134 4 6 OPA134 single op amp only. Use offset adjust pins only to null offset voltage of op amp--see text.
V-
FIGURE 1. OPA134 Offset Voltage Trim Circuit. In many ways headroom is a subjective measurement. It can be thought of as the maximum output amplitude allowed while still maintaining a very low level of distortion. In an attempt to quantify headroom, we have defined "very low distortion" as 0.01%. Headroom is expressed as a ratio which compares the maximum allowable output voltage level to a standard output level (1mW into 600, or 0.7746Vrms). Therefore, OPA134 series op amps, which have a maximum allowable output voltage level of 11.7Vrms (THD+Noise < 0.01%), have a headroom specification of 23.6dBu. See the typical curve "Headroom - Total Harmonic Distortion + Noise vs Output Amplitude." DISTORTION MEASUREMENTS The distortion produced by OPA134 series op amps is below the measurement limit of all known commercially available equipment. However, a special test circuit can be used to extend the measurement capabilities. Op amp distortion can be considered an internal error source which can be referred to the input. Figure 2 shows a circuit which causes the op amp distortion to be 101 times greater than normally produced by the op amp. The addition of R3 to the otherwise standard non-inverting amplifier
R1
R2 SIG. DIST. GAIN GAIN 1 R3 OPA134 VO = 3Vrms 11 101 101 101 101 R1 100 10 R2 1k 1k 1k R3 10 11
Signal Gain = 1+
R2 R1 R2 R1 II R3
Distortion Gain = 1+
Generator Output
Analyzer Input
Audio Precision System One Analyzer(1)
RL 1k
IBM PC or Compatible
NOTE: (1) Measurement BW = 80kHz
FIGURE 2. Distortion Test Circuit.
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OPA134/2134/4134
8
configuration alters the feedback factor or noise gain of the circuit. The closed-loop gain is unchanged, but the feedback available for error correction is reduced by a factor of 101, thus extending the resolution by 101. Note that the input signal and load applied to the op amp are the same as with conventional feedback without R3. The value of R3 should be kept small to minimize its effect on the distortion measurements. Validity of this technique can be verified by duplicating measurements at high gain and/or high frequency where the distortion is within the measurement capability of the test equipment. Measurements for this data sheet were made with an Audio Precision distortion/noise analyzer which greatly simplifies such repetitive measurements. The measurement technique can, however, be performed with manual distortion measurement instruments. SOURCE IMPEDANCE AND DISTORTION For lowest distortion with a source or feedback network which has an impedance greater than 2k, the impedance seen by the positive and negative inputs in noninverting applications should be matched. The p-channel JFETs in the FET input stage exhibit a varying input capacitance with applied common-mode input voltage. In inverting configurations the input does not vary with input voltage since the inverting input is held at virtual ground. However, in noninverting applications the inputs do vary, and the gateto-source voltage is not constant. The effect is increased distortion due to the varying capacitance for unmatched source impedances greater than 2k. To maintain low distortion, match unbalanced source impedance with appropriate values in the feedback network as shown in Figure 3. Of course, the unbalanced impedance may be from gain-setting resistors in the feedback path. If the parallel combination of R1 and R2 is greater than 2k, a matching impedance on the noninverting input should be used. As always, resistor values should be minimized to reduce the effects of thermal noise.
NOISE PERFORMANCE Circuit noise is determined by the thermal noise of external resistors and op amp noise. Op amp noise is described by two parameters--noise voltage and noise current. The total noise is quantified by the equation:
Vn (total) = (i n R S )2 + e n 2 + 4 kTR s
With low source impedance, the current noise term is insignificant and voltage noise dominates the noise performance. At high source impedance, the current noise term becomes the dominant contributor. Low noise bipolar op amps such as the OPA27 and OPA37 provide very low voltage noise at the expense of a higher current noise. However, OPA134 series op amps are unique in providing very low voltage noise and very low current noise. This provides optimum noise performance over a wide range of sources, including reactive source impedances, refer to the typical curve, "Voltage Noise vs Source Resistance." Above 2k source resistance, the op amp contributes little additional noise--the voltage and current terms in the total noise equation become insignificant and the source resistance term dominates. Below 2k, op amp voltage noise dominates over the resistor noise, but compares favorably with other audio op amps such as OP176. PHASE REVERSAL PROTECTION OPA134 series op amps are free from output phase-reversal problems. Many audio op amps, such as OP176, exhibit phase-reversal of the output when the input common-mode voltage range is exceeded. This can occur in voltage-follower circuits, causing serious problems in control loop applications. OPA134 series op amps are free from this undesirable behavior even with inputs of 10V beyond the input common-mode range. POWER DISSIPATION OPA134 series op amps are capable of driving 600 loads with power supply voltage up to 18V. Internal power dissipation is increased when operating at high supply voltages. Copper leadframe construction used in OPA134 series op amps improves heat dissipation compared to conventional materials. Circuit board layout can also help minimize junction temperature rise. Wide copper traces help dissipate the heat by acting as an additional heat sink. Temperature rise can be further minimized by soldering the devices to the circuit board rather than using a socket. OUTPUT CURRENT LIMIT Output current is limited by internal circuitry to approximately 40mA at 25C. The limit current decreases with increasing temperature as shown in the typical performance curve "Short-Circuit Current vs Temperature."
R1
R2
OPA134 VIN
VOUT
If RS > 2k or R1 II R2 > 2k RS = R1 II R2
FIGURE 3. Impedance Matching for Maintaining Low Distortion in Non-Inverting Circuits.
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OPA134/2134/4134
PACKAGE OPTION ADDENDUM
www.ti.com
3-Oct-2003
PACKAGING INFORMATION
ORDERABLE DEVICE OPA134PA OPA134PA3 OPA134UA OPA134UA/2K5 OPA134UA3 OPA2134PA OPA2134UA OPA2134UA/2K5 OPA4134PA OPA4134UA OPA4134UA/2K5 STATUS(1) ACTIVE OBSOLETE ACTIVE ACTIVE OBSOLETE ACTIVE ACTIVE ACTIVE OBSOLETE ACTIVE ACTIVE PACKAGE TYPE PDIP PDIP SOIC SOIC PDIP PDIP SOIC SOIC PDIP SOIC SOIC PACKAGE DRAWING P P D D P P D D N D D PINS 8 8 8 8 8 8 8 8 14 14 14 58 2500 50 100 2500 100 2500 PACKAGE QTY 50
(1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Amplifiers Data Converters DSP Interface Logic Power Mgmt Microcontrollers amplifier.ti.com dataconverter.ti.com dsp.ti.com interface.ti.com logic.ti.com power.ti.com microcontroller.ti.com Applications Audio Automotive Broadband Digital Control Military Optical Networking Security Telephony Video & Imaging Wireless Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2003, Texas Instruments Incorporated www.ti.com/audio www.ti.com/automotive www.ti.com/broadband www.ti.com/digitalcontrol www.ti.com/military www.ti.com/opticalnetwork www.ti.com/security www.ti.com/telephony www.ti.com/video www.ti.com/wireless

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