OPA134PA Equivalent & Substitute Parts

Part Overview

The OPA134PA is a single-channel audio amplifier integrated circuit manufactured by Texas Instruments in the SoundPlus™ series. This linear amplifier is packaged in an 8-PDIP through-hole configuration and is designed for audio signal processing applications. The device is currently in active production status with 1498 units in stock inventory.

Substitute parts become necessary when the OPA134PA reaches end-of-life status, when supply chain constraints limit availability, or when design requirements necessitate alternative performance characteristics within compatible package and pin configurations. All substitute parts listed maintain electrical and mechanical compatibility with the OPA134PA within specified operating parameters.

Key Parameters

Parameter	OPA134PA	Unit
Amplifier Type	Audio	—
Number of Circuits	1	—
Slew Rate	20	V/µs
Gain Bandwidth Product	8	MHz
Current - Input Bias	5	pA
Voltage - Input Offset	500	µV
Current - Supply	4	mA
Current - Output / Channel	35	mA
Voltage - Supply Span (Min)	5	V
Voltage - Supply Span (Max)	36	V
Operating Temperature Range	-40 to 85	°C
Package / Case	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution compatibility for the OPA134PA is determined by the following critical parameters:

Package and Pinout Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) package with through-hole mounting to ensure direct board-level replacement without layout modifications.

Electrical Operating Range: Substitute parts must support the minimum and maximum supply voltage requirements. The OPA134PA operates from 5V to 36V. Substitute parts with narrower supply ranges (such as 9V to 36V or 9V to 40V) are compatible only when the application circuit operates within the overlapping voltage window.

Single-Channel Configuration: All substitute parts maintain a single-circuit topology matching the OPA134PA, ensuring equivalent channel density and application suitability.

Compliance and Certification: All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting the same regulatory requirements as the primary part.

The three substitute parts listed represent different amplifier topologies (J-FET and Voltage Feedback architectures) that provide alternative performance characteristics while maintaining package and basic electrical compatibility.

Parameter Comparison

Parameter	OPA134PA	AD711JNZ	LT1360CN8#PBF	LT1792CN8#PBF	Unit
Manufacturer	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	—
Number of Circuits	1	1	1	1	—
Amplifier Type	Audio	J-FET	Voltage Feedback	J-FET	—
Slew Rate	20	20	800	3.4	V/µs
Gain Bandwidth Product	8	—	50	5.6	MHz
Current - Input Bias	5	15	300	300	pA
Voltage - Input Offset	500	300	300	200	µV
Current - Supply	4	2.5	4	4.2	mA
Current - Output / Channel	35	25	34	—	mA
Voltage - Supply Span (Min)	5	9	5	9	V
Voltage - Supply Span (Max)	36	36	30	40	V
Operating Temperature Range	-40 to 85	0 to 70	0 to 70	0 to 70	°C
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
Inventory Status	1498 Pcs In Stock	2903 Pcs In Stock	1147 Pcs In Stock	1900 Pcs In Stock	—

Engineering Selection Recommendations

AD711JNZ (Analog Devices Inc.): This J-FET amplifier substitute maintains identical slew rate (20V/µs) and matching supply voltage range (9V to 36V maximum). The device is ROHS3 compliant and currently in active production. The AD711JNZ exhibits lower input bias current (15 pA versus 5 pA) and reduced input offset voltage (300 µV versus 500 µV). The minimum supply voltage requirement of 9V restricts use in applications requiring 5V operation. This substitute is suitable for designs operating at 9V or higher supply voltages where improved input characteristics are beneficial.

LT1360CN8#PBF (Analog Devices Inc.): This voltage feedback amplifier offers significantly higher slew rate (800V/µs) and gain bandwidth product (50 MHz) compared to the OPA134PA. The device maintains 5V minimum supply voltage compatibility and is ROHS3 compliant. The maximum supply voltage is limited to 30V, restricting use in applications requiring operation above 30V. The LT1360CN8#PBF is suitable for high-speed audio and signal processing applications where bandwidth and slew rate performance exceed OPA134PA specifications.

LT1792CN8#PBF (Analog Devices Inc.): This J-FET amplifier substitute provides extended maximum supply voltage (40V) and is ROHS3 compliant. The device exhibits lower slew rate (3.4V/µs) and reduced gain bandwidth product (5.6 MHz) relative to the OPA134PA. The minimum supply voltage requirement of 9V restricts use in 5V applications. This substitute is suitable for low-noise, low-speed audio applications operating at 9V or higher supply voltages where extended voltage headroom is required.

All substitute parts maintain active production status and ROHS3 compliance, meeting regulatory requirements equivalent to the OPA134PA.

Frequently Asked Questions (FAQ)

Q: Can the AD711JNZ replace the OPA134PA in all applications?

A: The AD711JNZ is compatible with OPA134PA applications operating at supply voltages of 9V or higher. Applications requiring 5V operation are not compatible with the AD711JNZ due to its 9V minimum supply voltage specification. Both devices share identical 8-DIP packaging and 20V/µs slew rate.

Q: What is the primary difference between the LT1360CN8#PBF and the OPA134PA?

A: The LT1360CN8#PBF is a voltage feedback amplifier with significantly higher bandwidth (50 MHz gain bandwidth product versus 8 MHz) and slew rate (800V/µs versus 20V/µs). The LT1360CN8#PBF is limited to 30V maximum supply voltage, while the OPA134PA operates to 36V. Both devices support 5V minimum supply voltage and share 8-DIP packaging.

Q: Is the LT1792CN8#PBF suitable for high-speed applications?

A: The LT1792CN8#PBF exhibits lower slew rate (3.4V/µs) and reduced gain bandwidth product (5.6 MHz) compared to the OPA134PA. This device is optimized for low-noise, low-speed applications rather than high-speed signal processing.

Q: Do all substitute parts maintain the same operating temperature range as the OPA134PA?

A: No. The OPA134PA operates from -40°C to 85°C, while all three substitute parts operate from 0°C to 70°C. Applications requiring operation below 0°C or above 70°C are not compatible with the listed substitute parts.

Q: Are all substitute parts available in the same package as the OPA134PA?

A: Yes. All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package, enabling direct board-level replacement without layout modifications.

Q: What is the supply voltage overlap window for all four devices?

A: The common supply voltage range where all devices operate is 9V to 30V. Applications operating within this window can use any of the four devices. Applications requiring 5V to 8V operation are limited to the OPA134PA and LT1360CN8#PBF. Applications requiring 31V to 36V operation are limited to the OPA134PA and LT1792CN8#PBF.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The OPA134PA and all three substitute parts (AD711JNZ, LT1360CN8#PBF, and LT1792CN8#PBF) are ROHS3 compliant and REACH unaffected.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message