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OPA134, OPA2134, OPA4134
SBOS058A –DECEMBER 1997–REVISED OCTOBER 2015
OPAx134 SoundPlus™ High Performance Audio Operational Amplifiers
1 Features
3 Description
The OPA134 series are ultra-low distortion, low-noise
operational amplifiers fully specified for audio
applications. A true FET input stage is 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 for use in a wide variety of
demanding applications. In addition, the OPA134 has
a wide output swing, to within 1 V of the rails,
allowing increased headroom and making it ideal for
use in any audio circuit.
1
•
Superior Sound Quality
Ultra Low Distortion: 0.00008%
Low Noise: 8 nV/√Hz
True FET-Input: IB = 5pA
High Speed:
•
•
•
•
–
–
Slew Rate: 20 V/µs
Bandwidth: 8 MHz
•
•
•
High Open-Loop Gain: 120 dB (600 Ω)
Wide Supply Range: ±2.5 V to ±18 V
Single, Dual, and Quad Versions
The OPA134 SoundPlus™ audio operational
amplifiers are easy to use and free from phase-
inversion and the overload problems often found in
common FET-input operational amplifiers. They can
be operated from ±2.5-V to ±18-V 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 operational amplifiers 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.
2 Applications
•
•
•
•
•
•
•
•
Professional Audio and Music
Line Drivers
Line Receivers
Multimedia Audio
Active Filters
Preamplifiers
Integrators
Crossover Networks
THD+Noise vs Frequency
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 –40°C to 85°C operation. A SPICE macromodel is
available for design analysis.
0.01
0.001
VO = 10Vrms
RL = 2kW
VS
=
1ꢀ
(1)
Device Information
0.0001
0.00001
PART NUMBER
PACKAGE
BODY SIZE (NOM)
3.91 mm × 4.90 mm
6.35 mm × 9.81 mm
3.91 mm × 4.90 mm
6.35 mm × 9.81 mm
3.91 mm × 8.65 mm
SOIC (8)
OPA134
VS
= 1ꢁ
VS
= 1ꢂ
PDIP (8)
SOIC (8)
PDIP (8)
SOIC (14)
20
100
1k
Frequency (Hz)
10k 20k
OPA2134
OPA4134
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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