Comprehensive Guide to the OPA2134PA Audio Amplifier: Circuit, Pinout, and Substitutes

The OPA2134PA operational amplifier stands out in high-fidelity audio applications, delivering exceptional clarity, low noise, and precision in sound reproduction. In this article, we dig into the attributes that make the OPA2134PA a preferred choice for you, mostly its FET input design, low distortion, and broad bandwidth. These features enhance its performance in diverse settings, from professional audio equipment and line drivers to preamplifiers and multimedia systems. This amplifier’s reliability and quality make it requisite for you seeking excellence in audio signal integrity, offering a robust solution for high-end sound systems.

Catalog

OPA2134PA Detailed Overview

The OPA2134PA series is intricately designed for superior audio output with minimal distortion. Featuring a true FET input stage, they ensure remarkable sound fidelity and quick response, making them suited for high-end audio setups. This design enhances the listening experience, offering clarity and detail.

These amplifiers provide broad output drive capability and notable DC characteristics, allowing flexible use across various audio scenarios. The extensive output range increases headroom, meeting the needs of diverse audio environments effectively. Such adaptability often leads to their use in both professional audio gear and sophisticated consumer electronics.

Operating without common phase inversion or overload issues often seen in FET input designs, the OPA2134 performs efficiently with power supplies ranging from ±2.5-V to ±18-V. This reliable functionality suits complex and demanding environments, where consistent performance is a must. The input cascode circuitry is expertly engineered for exceptional common-mode rejection and low input bias current. This refined design greatly reduces distortion, active for preserving sound integrity in audio processing.

OPA2134PA CAD Models

Symbol

Footprint

3D Models

Pin Configurations

Pin Name	No.	I/O	Description
Out A	1	O	Output channel A
–In A	2	I	Inverting input channel A
+In A	3	I	Noninverting input channel A
V+	8	-	Positive power supply
+In B	5	I	Noninverting input channel B
–In B	6	I	Inverting input channel B
Out B	7	O	Output channel B
Out C	-	O	Output channel C
–In C	-	I	Inverting input channel C
+In C	-	I	Noninverting input channel C
V–	4	-	Negative power supply
+In D	-	I	Noninverting input channel D
–In D	-	I	Inverting input channel D
Out D	-	O	Output channel D

Technical Specifications

Type	Parameter
Lifecycle Status	ACTIVE (Last Updated: 3 days ago)
Factory Lead Time	6 Weeks
Mounting Type	Through Hole
Package / Case	8-DIP (0.300, 7.62mm)
Surface Mount	NO
Number of Pins	8
Weight	528.605208 mg
Number of Elements	2
Operating Temperature	-40°C ~ 85°C
Packaging	Tube
Series	SoundPlus™
JESD-609 Code	e4
Pbfree Code	Yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	8
ECCN Code	EAR99
Terminal Finish	Nickel/Palladium/Gold (Ni/Pd/Au)
Number of Functions	2
Supply Voltage	15V
Base Part Number	OPA2134
Pin Count	8
Operating Supply Current	4 mA
Nominal Supply Current	4 mA
Slew Rate	20 V/μs
Architecture	VOLTAGE-FEEDBACK
Amplifier Type	Audio
Common Mode Rejection Ratio	86 dB
Current - Input Bias	5 pA
Voltage - Supply, Single/Dual (±)	5V ~ 36V, ±2.5V ~ 18V
Output Current per Channel	35 mA
Supply Type	Dual
Input Offset Voltage (Vos)	500 μV
Neg Supply Voltage-Nom (Vsup)	-15 V
Unity Gain BW-Nom	8000 kHz
Voltage Gain	120 dB
Average Bias Current-Max (IIB)	0.0001 μA
Power Supply Rejection Ratio (PSRR)	90 dB
Low-Offset	NO
Frequency Compensation	YES
Low-Bias	YES
Micropower	NO
Bias Current-Max (IIB) @25°C	0.0001 μA
Programmable Power	NO
Dual Supply Voltage	9V
Nominal Gain Bandwidth Product	8 MHz
Input Offset Current-Max (IIO)	0.00005 μA
Load Impedance	2 kΩ
Height	5.08 mm
Length	9.81 mm
Width	6.35 mm
Thickness	3.9 mm
REACH SVHC	No SVHC
Radiation Hardening	No
RoHS Status	ROHS3 Compliant
Lead Free	Lead Free

Features

Feature	Description
Superior Sound Quality	High-quality audio performance
Ultra-Low Distortion	0.00%
Low Noise	8 nV/√Hz
True FET-Input	IB = 5 pA
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

OPA2134PA in Diverse Applications

The OPA2134PA plays a versatile role across various domains where audio fidelity and precision resonate deeply with desires and expertise.

Professional Audio

Within professional audio landscapes, the OPA2134PA finds its place in mixing consoles and audio interfaces. Renowned for its low noise and distortion, it ensures that sound reproduction captures every emotion, making it a trusted choice in recording studios. Here, the integrity of the signal carries untold impact, as even subtle changes can influence the artist's intended experience.

Line Drivers and Receivers

In the world of telecommunications and audio systems, the OPA2134PA acts as a steadfast line driver and receiver, deftly managing long cable runs with minimal signal loss. Specialists often emphasize the pursuit of quality signal transmission over long distances, with this component serving as a linchpin in that quest.

Multimedia

Enhancing multimedia experiences, the OPA2134PA ensures clear audio output in televisions and gaming consoles. Its precise performance guarantees that you immerse yourself wholly, as sound quality holds notable sway in today’s multimedia environments. You can continually seek to harmonize audio and visual elements, an endeavor this component supports robustly.

Active Filters

In audio and signal processing, the OPA2134PA is active in crafting active filter circuits that expertly manage frequency response. This application shapes sound characteristics uniquely for a variety of audio equipment. The precision in filtering profoundly affects authenticity and clarity, often relying on experimentation and artistry.

Preamplifiers

For preamplification, the OPA2134PA offers needed gain while sustaining signal purity. It finds frequent use in microphone preamps and other devices where amplifying weak signals is a delicate affair. Individuals in the field appreciate the art of balancing amplification and noise control, and this op-amp is celebrated for its role in achieving that delicate equilibrium.

Functional Block Diagram

Dimensions

Dimension	Measurement
Height	5.08 mm
Length	9.81 mm
Thickness	3.9 mm
Width	6.35 mm

OPA2134PA Alternatives

Part No.	Manufacturer
MUSES02	Nisshinbo Micro Devices Inc.
LT1113CN8#PBF	Analog Devices Inc.
NJM5532D	Nisshinbo Micro Devices Inc.
LT1113ACN8#PBF	Analog Devices Inc.
NJM4558D	Nisshinbo Micro Devices Inc.
NJM4580D	Nisshinbo Micro Devices Inc.
AD746JNZ	Analog Devices Inc.
LT1169CN8#PBF	Analog Devices Inc.
NJM2068D	Nisshinbo Micro Devices Inc.
OPA4132UA	Texas Instruments

OPA2134PA Manufacturer

Texas Instruments, an influential US-based semiconductor company, produces the OPA2134PA. Known for their proficiency in analog chips and embedded processors, the company directs a major portion of its revenue into these cutting-edge products. Their dedication to innovation and technological progress is evident in the consistent enhancement of performance and efficiency.

OPA2134PA Distortion Analysis

The OPA134 series exhibits distortion levels so subtle that they frequently evade the detection limits of standard measurement apparatus. This outstanding performance stems from intricate circuit designs that adeptly mitigate distortion. Such designs flourish in augmenting measurement precision by treating distortion as an internal, input-referred anomaly. Adopting intricate circuit techniques plays a basic role in precisely evaluating distortion. Employing state-of-the-art methodologies enhances measurement accuracy by focusing on the reduction of internal discrepancies. Improving thermal stability and curtailing interference are paths to achieving more consistent results. These methods transcend notional concepts, demonstrating their efficacy across diverse practical applications. Many industries benefit from these practices where accuracy holds remarkable value.

OPA2134PA and OPA2134UA

Parameter	OPA2134PA	OPA2134UA
Part Package Code	DIP	SOIC
JESD-30 Code	R-PDIP-T8	R-PDSO-G8
Length	9.56 mm	4.905 mm
Package Code	DIP	SOP
Package Style	IN-LINE	SMALL OUTLINE
Seated Height (Max)	5.08 mm	1.75 mm
Surface Mount	NO	YES
Terminal Pitch	2.54 mm	1.27 mm
Width	7.62 mm	3.895 mm
Base Number Matches	2	5

Package

Components with Similar Specifications

Part Number	Manufacturer	Package / Case	Number of Pins	Slew Rate	Input Offset Voltage (Vos)	Common Mode Rejection Ratio (CMRR)	Supply Voltage	Operating Supply Current	Number of Terminations	View Compare
OPA2134PA	Texas Instruments	8-DIP (0.300, 7.62mm)	8	20 V/μs	500 μV	86 dB	15 V	4 mA	8	OPA2134PA VS TLC072CP
TLC072CP	Texas Instruments	8-DIP (0.300, 7.62mm)	8	20 V/μs	500 μV	86 dB	15 V	4 mA	8	OPA2134PA VS TLC072CP
OPA2132PA	Texas Instruments	8-DIP (0.300, 7.62mm)	8	19 V/μs	390 μV	80 dB	5 V	2.1 mA	8	OPA2134PA VS OPA2132PA
TLC072IP	Texas Instruments	8-DIP (0.300, 7.62mm)	8	19 V/μs	1.9 mV	80 dB	5 V	2.1 mA	8	OPA2134PA VS TLC072IP

Datasheet PDF

TLC072CP Datasheets:

TLC070-75, TLC07xA.pdf

Frequently Asked Questions [FAQ]

1. What is the maximum operating temperature of OPA2134PA?

It can reach up to 85°C. This parameter guides optimal performance across varying environments, especially in industries with common temperature shifts. Recognizing these limits supports effective system integration for better temperature control.

2. How many pins does the OPA2134PA have?

The device includes 8 pins. Proper pin configuration is active for seamless integration within circuits. Precise setup minimizes risks like cross-talk or signal interference, challenges frequently encountered in practical circuit design experiences.

3. What is the minimum operating temperature of OPA2134PA?

The lowest temperature is -40°C. This broad range enhances the device's versatility in various climates, highlighting its robustness in unpredictable outdoor settings. Such adaptability is valued in sectors needing components that withstand extreme conditions.

4. What is the OPA2134PA's bandwidth?

Its bandwidth is 8MHz. This feature is pivotal for applications requiring refined audio performance, supporting a wide frequency range ideal for scenarios where signal clarity is a must. You can frequently exploit this for superior audio signal processing.

5. How many channels does the OPA2134PA have?

It contains 2 channels. This dual configuration is favored in stereo applications, streamlining audio processing and amplification. The symmetrical channel setup aids in achieving balanced audio outputs, an ultimate aspect of sound engineering.