FEATURES
q
SUPERIOR SOUND QUALITY
q
ULTRA LOW DISTORTION: 0.00008%
q
LOW NOISE: 8nV/
Hz
q
TRUE FET-INPUT: I
B
= 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
High Performance
AUDIO OPERATIONAL AMPLIFIERS
TM
DESCRIPTION
The OPA134 series are ultra-low distortion, low noise
operational amplifiers fully specified for audio appli-
cations. A true FET input stage was incorporated to
provide superior sound quality and speed for excep-
tional audio performance. This in combination with
high output drive capability and excellent dc perfor-
mance 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 com-
mon FET-input op amps. They can be operated from
2.5V to
18V power supplies. Input cascode cir-
cuitry 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 condi-
tions, including high load capacitance. The dual and
quad versions feature completely independent cir-
cuitry for lowest crosstalk and freedom from interac-
tion, even when overdriven or overloaded.
Single and dual versions are available in 8-pin DIP
and SO-8 surface-mount packages in standard con-
figurations. The quad is available in 14-pin DIP and
SO-14 surface mount packages. All are specified for
40
C to +85
C operation. A SPICE macromodel is
available for design analysis.
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
1996 Burr-Brown Corporation
PDS-1339C
Printed in U.S.A. December, 1997
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
1
2
3
4
8
7
6
5
V+
Out B
In B
+In B
Out A
In A
+In A
V
OPA2134
8-Pin DIP, SO-8
A
B
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Out D
In D
+In D
V
+In C
In C
Out C
Out A
In A
+In A
V+
+In B
In B
Out B
OPA4134
14-Pin DIP
SO-14
A
D
B
C
1
2
3
4
8
7
6
5
Offset Trim
V+
Output
NC
Offset Trim
In
+In
V
OPA134
8-Pin DIP, SO-8
OPA134
OPA2134
OPA4134
OPA134
OPA2134
OPA4134
OPA4134
OPA134
OPA2134
SBOS058
2
OPA134/2134/4134
SPECIFICATIONS
At T
A
= +25
C, V
S
=
15V, unless otherwise noted.
OPA134PA, UA
OPA2134PA, UA
OPA4134PA, UA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
AUDIO PERFORMANCE
Total Harmonic Distortion + Noise
G = 1, f = 1kHz, V
O
= 3Vrms
R
L
= 2k
0.00008
%
R
L
= 600
0.00015
%
Intermodulation Distortion
G = 1, f = 1kHz, V
O
= 1Vp-p
98
dB
Headroom
(1)
THD < 0.01%, R
L
= 2k
, V
S
=
18V
23.6
dBu
FREQUENCY RESPONSE
Gain-Bandwidth Product
8
MHz
Slew Rate
(2)
15
20
V/
s
Full Power Bandwidth
1.3
MHz
Settling Time 0.1%
G = 1, 10V Step, C
L
= 100pF
0.7
s
0.01%
G = 1, 10V Step, C
L
= 100pF
1
s
Overload Recovery Time
(V
IN
) (Gain) = V
S
0.5
s
NOISE
Input Voltage Noise
Noise Voltage, f = 20Hz to 20kHz
1.2
Vrms
Noise Density, f = 1kHz
8
nV/
Hz
Current Noise Density, f = 1kHz
3
fA/
Hz
OFFSET VOLTAGE
Input Offset Voltage
0.5
2
mV
T
A
= 40
C to +85
C
1
3
(3)
mV
vs Temperature
T
A
= 40
C to +85
C
2
V/
C
vs Power Supply (PSRR)
V
S
=
2.5V to
18V
90
106
dB
Channel Separation (Dual, Quad)
dc, R
L
= 2k
135
dB
f = 20kHz, R
L
= 2k
130
dB
INPUT BIAS CURRENT
Input Bias Current
(4)
V
CM
=0V
+5
100
pA
vs Temperature
(3)
See Typical Curve
5
nA
Input Offset Current
(4)
V
CM
=0V
2
50
pA
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
(V)+2.5
13
(V+)2.5
V
Common-Mode Rejection
V
CM
= 12.5V to +12.5V
86
100
dB
T
A
= 40
C to +85
C
90
dB
INPUT IMPEDANCE
Differential
10
13
|| 2
|| pF
Common-Mode
V
CM
= 12.5V to +12.5V
10
13
|| 5
|| pF
OPEN-LOOP GAIN
Open-Loop Voltage Gain
R
L
= 10k
, V
O
= 14.5V to +13.8V
104
120
dB
R
L
= 2k
, V
O
= 13.8V to +13.5V
104
120
dB
R
L
= 600
, V
O
= 12.8V to +12.5V
104
120
dB
OUTPUT
Voltage Output
R
L
= 10k
(V)+0.5
(V+)1.2
V
R
L
= 2k
(V)+1.2
(V+)1.5
V
R
L
= 600
(V)+2.2
(V+)2.5
V
Output Current
35
mA
Output Impedance, Closed-Loop
(5)
f = 10kHz
0.01
Open-Loop
f = 10kHz
10
Short-Circuit Current
40
mA
Capacitive Load Drive (Stable Operation)
See Typical Curve
POWER SUPPLY
Specified Operating Voltage
15
V
Operating Voltage Range
2.5
18
V
Quiescent Current (per amplifier)
I
O
= 0
4
5
mA
TEMPERATURE RANGE
Specified Range
40
+85
C
Operating Range
55
+125
C
Storage
55
+125
C
Thermal Resistance,
JA
8-Pin DIP
100
C/W
SO-8 Surface-Mount
150
C/W
14-Pin DIP
80
C/W
SO-14 Surface-Mount
110
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 T
J
= 25
C. (5) See "Closed-Loop Output Impedance vs Frequency"
typical curve.
3
OPA134/2134/4134
PACKAGE
DRAWING
TEMPERATURE
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
Single
OPA134PA
8-Pin Plastic DIP
006
40
C to +85
C
OPA134UA
SO-8 Surface-Mount
182
40
C to +85
C
Dual
OPA2134PA
8-Pin Plastic DIP
006
40
C to +85
C
OPA2134UA
SO-8 Surface-Mount
182
40
C to +85
C
Quad
OPA4134PA
14-Pin Plastic DIP
010
40
C to +85
C
OPA4134UA
SO-14 Surface-Mount
235
40
C to +85
C
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
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 degrada-
tion 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.
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 ................................................. 40
C to +125
C
Storage Temperature ..................................................... 55
C to +125
C
Junction Temperature ...................................................................... 150
C
Lead Temperature (soldering, 10s) ................................................. 300
C
NOTES: (1) Stresses above these ratings may cause permanent damage.
(2) Short-circuit to ground, one amplifier per package.
TYPICAL PERFORMANCE CURVES
At T
A
= +25
C, V
S
=
15V, R
L
= 2k
, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
Frequency (Hz)
THD+Noise (%)
0.1
0.01
0.001
0.0001
0.00001
10
100
1k
10k
100k
2k
600
R
L
V
O
= 3Vrms
G = +1
G = +10
SMPTE INTERMODULATION DISTORTION
vs OUTPUT AMPLITUDE
Output Amplitude (Vpp)
IMD (%)
1
0.1
0.010
0.001
0.0005
5
30m
0.1
1
10
30
G = +1
f = 1kHz
R
L
= 2k
Baseline
OP176
OPA134
OPA134
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.
PACKAGE/ORDERING INFORMATION
4
OPA134/2134/4134
HEADROOM TOTAL HARMONIC DISTORTION
+ NOISE vs OUTPUT AMPLITUDE
Output Amplitude (Vrms)
THD+Noise (%)
1
0.1
0.010
0.001
0.0005
0.1
1
10
20
V
S
= 18V
R
L
= 2k
f = 1kHz
THD < 0.01%
OPA134 11.7Vrms
OP176 11.1Vrms
Baseline
OP176
OPA134
OPA134
TYPICAL PERFORMANCE CURVES
(CONT)
At T
A
= +25
C, V
S
=
15V, R
L
= 2k
, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
Frequency (Hz)
THD+Noise (%)
0.01
0.001
0.0001
0.00001
20
100
1k
10k
20k
V
O
= 10Vrms
R
L
= 2k
V
S
= 16
V
S
= 17
V
S
= 18
HARMONIC DISTORTION + NOISE vs FREQUENCY
Frequency (Hz)
Amplitude (% of Fundamentals)
0.01
0.001
0.0001
0.00001
0.000001
20
100
1k
10k
20k
2nd Harmonic
3rd Harmonic
V
O
= 1Vrms
R
L
= 600
R
L
= 2k
VOLTAGE NOISE vs SOURCE RESISTANCE
Source Resistance (
)
Voltage Noise (nV/
Hz)
1k
100
10
1
0.1
10
100
1k
10k
100k
1M
10M
OP176+
Resistor
OPA134+
Resistor
Resistor Noise
Only
V
n
(total) =
(i
n
R
S
)
2
+ e
n
2
+ 4kTR
S
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1
1k
100
10
Voltage Noise (nV/
Hz)
Frequency (Hz)
10
100
1k
10k
100k
1M
1
Current Noise (fA/
Hz)
Voltage Noise
Current Noise
INPUT-REFERRED NOISE VOLTAGE
vs NOISE BANDWIDTH
Noise Bandwidth (Hz)
Noise Voltage (
V)
100
10
1
0.1
1
10
100
1k
10k
100k
R
S
= 20
Peak-to-Peak
RMS
5
OPA134/2134/4134
TYPICAL PERFORMANCE CURVES
(CONT)
At T
A
= +25
C, V
S
=
15V, R
L
= 2k
, unless otherwise noted.
OPEN-LOOP GAIN/PHASE vs FREQUENCY
0.1
1
10
100
1k
10k
100k
1M
10M
160
140
120
100
80
60
40
20
0
20
0
45
90
135
180
Voltage Gain (dB)
Phase Shift ()
Frequency (Hz)
G
CLOSED-LOOP GAIN vs FREQUENCY
Frequency (Hz)
Closed-Loop Gain (dB)
50
40
30
20
10
0
10
20
1k
10k
100k
1M
10M
G = +10
G = +100
G = +1
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
Frequency (Hz)
PSR, CMR (dB)
120
100
80
60
40
20
0
10
100
1k
10k
100k
1M
CMR
PSR
+PSR
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
Frequency (Hz)
10k
100k
1M
10M
30
20
10
0
Output Voltage (Vp-p)
V
S
= 15V
V
S
= 2.5V
V
S
= 5V
Maximum output voltage
without slew-rate
induced distortion
CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY
Frequency (Hz)
Closed-Loop Output Impedance (
)
10
1
0.1
0.01
0.001
0.0001
10
100
1k
10k
100k
G = +1
G = +2
G = +10
G = +100
Note: Open-Loop
Output Impedance
at f = 10kHz is 10
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
Channel Separation (dB)
160
140
120
100
80
100
1k
10k
100k
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C--other
combinations yield improved
rejection.
R
L
=
R
L
= 2k
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