OP292GS Equivalent & Substitute Parts

Part Overview

The OP292GS is a general-purpose operational amplifier manufactured by Analog Devices Inc., configured as a dual-channel (2 circuit) device in an 8-SOIC surface-mount package. This part is classified as obsolete, indicating it has been discontinued by the manufacturer. The OP292GS delivers a gain-bandwidth product of 4 MHz with a slew rate of 4 V/µs, suitable for general-purpose amplification applications requiring moderate bandwidth and speed characteristics.

Due to its obsolete status, sourcing new units from primary distribution channels is limited. Equivalent and substitute parts listed in this document provide active alternatives that maintain functional compatibility based on electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Slew Rate	4	V/µs
Gain Bandwidth Product	4	MHz
Current - Input Bias	375	nA
Voltage - Input Offset	1	mV
Current - Supply (per Channel)	1	mA
Current - Output per Channel	10.5	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	33	V
Operating Temperature Range	−40 to 125	°C
Mounting Type	Surface Mount	—
Package / Case	8-SOIC (0.154", 3.90 mm Width)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the OP292GS is determined by the following critical parameters:

Primary Compatibility Criteria:

Number of circuits: 2 (dual-channel configuration)
Package type: 8-SOIC surface-mount form factor
Amplifier type classification
Operating temperature range: −40°C to 125°C minimum
Supply voltage span: minimum 4.5 V to maximum 33 V
Slew rate and gain-bandwidth product within application tolerance

Substitution Categories:

Direct Equivalent (Packaging Variant): OP292GSZ is an active-status variant of the OP292GS base product, differing only in packaging format (Tube vs. standard). All electrical specifications are identical.

Functional Equivalents (General Purpose, Dual-Channel, 8-SOIC): Parts including LM258WDT, LM2904WYDT, and BA2904YF-CE2 share the same package footprint and dual-channel configuration. These parts operate within overlapping supply voltage ranges and temperature specifications, though individual electrical parameters (slew rate, gain-bandwidth product, input bias current) differ from the OP292GS.

Performance-Enhanced Alternatives (J-FET Input Topology): OPA2131UA, OPA2131UA/2K5, OPA2132U, OPA2132U/2K5, and OPA2132UA represent higher-performance alternatives with J-FET input stages, offering superior input bias current characteristics (5 pA vs. 375 nA) and higher slew rates (10–20 V/µs vs. 4 V/µs). These parts maintain 8-SOIC packaging and dual-channel configuration but require minimum supply voltage of 5–9 V.

Parameter Comparison

Part Number	Manufacturer	Product Status	Amplifier Type	Number of Circuits	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (mV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package
OP292GS	Analog Devices	Obsolete	General Purpose	2	4	4	375	1	1	10.5	4.5	33	−40 to 125	8-SOIC
OP292GSZ	Analog Devices	Active	General Purpose	2	4	4	375	1	1	10.5	4.5	33	−40 to 125	8-SOIC
BA2904YF-CE2	Rohm Semiconductor	Active	General Purpose	2	0.2	0.5	20	2	0.5	30	3	36	−40 to 125	8-SOP
LM258WDT	STMicroelectronics	Active	General Purpose	2	0.6	1.1	20	2	0.7	60	3	30	−40 to 105	8-SOIC
LM2904WDT	Rohm Semiconductor	Obsolete	General Purpose	2	0.3	1.1	20	1	0.6	40	3	32	−40 to 125	8-SOIC
LM2904WYDT	STMicroelectronics	Active	General Purpose	2	0.6	1.1	20	2	0.7	40	3	30	−40 to 125	8-SOIC
OPA2131UA	Texas Instruments	Active	J-FET	2	10	4	0.005	0.2	1.5	25	9	36	−40 to 85	8-SOIC
OPA2131UA/2K5	Texas Instruments	Active	J-FET	2	10	4	0.005	0.2	1.5	25	9	36	−40 to 85	8-SOIC
OPA2132U	Texas Instruments	Active	J-FET	2	20	8	0.005	0.25	4	40	5	36	−40 to 85	8-SOIC
OPA2132U/2K5	Texas Instruments	Active	J-FET	2	20	8	0.005	0.25	4	40	5	36	−40 to 85	8-SOIC
OPA2132UA	Texas Instruments	Active	J-FET	2	20	8	0.005	0.5	4	40	5	36	−40 to 85	8-SOIC

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Performance):

OP292GSZ is the recommended direct replacement for OP292GS. Both parts are manufactured by Analog Devices Inc. and share identical electrical specifications across all measured parameters. OP292GSZ carries active product status, ensuring continued availability and supply chain reliability. The only difference is packaging format (Tube vs. standard), which does not affect circuit performance. This substitution requires no circuit redesign or validation.

Active General-Purpose Alternatives (Same Package Footprint):

LM2904WYDT and LM258WDT are active-status general-purpose dual-channel amplifiers in 8-SOIC packages manufactured by STMicroelectronics. Both parts are AEC-Q100 qualified for automotive applications and carry ROHS3 compliance. These parts operate within the OP292GS supply voltage range (3 V to 30 V) and temperature range (−40°C to 125°C or −40°C to 105°C). However, they exhibit lower slew rates (0.6 V/µs vs. 4 V/µs) and reduced gain-bandwidth product (1.1 MHz vs. 4 MHz). Selection of these parts is appropriate for applications where the OP292GS performance specifications exceed circuit requirements.

LM2904WYDT is preferred over LM258WDT due to identical electrical characteristics and extended upper temperature rating (125°C vs. 105°C), providing closer alignment with the OP292GS operating range.

Performance-Enhanced J-FET Alternatives:

OPA2131UA, OPA2131UA/2K5, OPA2132U, OPA2132U/2K5, and OPA2132UA are Texas Instruments J-FET input operational amplifiers offering superior input bias current performance (5 pA vs. 375 nA) and higher slew rates (10–20 V/µs vs. 4 V/µs). These parts maintain 8-SOIC packaging and dual-channel configuration. All variants carry active product status and ROHS3 compliance.

OPA2132 variants (U, U/2K5, UA) deliver the highest performance tier with 20 V/µs slew rate and 8 MHz gain-bandwidth product, suitable for applications requiring enhanced speed and precision. OPA2131 variants provide intermediate performance (10 V/µs slew rate, 4 MHz gain-bandwidth product) matching the OP292GS bandwidth while improving input bias current characteristics.

Critical limitation: All OPA213x parts require minimum supply voltage of 5–9 V, compared to the OP292GS minimum of 4.5 V. Upper temperature rating is limited to 85°C, compared to the OP292GS 125°C maximum. These parts are suitable only for applications where supply voltage and temperature constraints are compatible.

Compliance and Certification Status:

OP292GSZ, LM2904WYDT, and LM258WDT all carry ROHS3 compliance and REACH unaffected status, meeting modern environmental and regulatory requirements. OPA213x variants similarly maintain ROHS3 compliance and REACH unaffected status. BA2904YF-CE2 carries AEC-Q100 automotive qualification in addition to ROHS3 compliance, suitable for automotive-grade applications.

Frequently Asked Questions (FAQ)

Q: Can OP292GSZ be used as a direct replacement for OP292GS without circuit modification?

A: Yes. OP292GSZ is electrically identical to OP292GS across all specified parameters. The only difference is packaging format (Tube). No circuit redesign, component value changes, or performance validation is required. PCB layout and footprint remain unchanged.

Q: What is the primary reason to substitute OP292GS with an alternative part?

A: OP292GS is classified as obsolete, meaning the manufacturer has discontinued production. OP292GSZ provides the same electrical performance with active product status, ensuring long-term availability. If OP292GSZ becomes unavailable, LM2904WYDT or LM258WDT offer active alternatives in the same 8-SOIC package, though with reduced bandwidth and slew rate specifications.

Q: Are LM2904WYDT and LM258WDT compatible with OP292GS in all applications?

A: Compatibility depends on application bandwidth and speed requirements. Both parts deliver 1.1 MHz gain-bandwidth product and 0.6 V/µs slew rate, compared to OP292GS specifications of 4 MHz and 4 V/µs. These parts are suitable for low-frequency and moderate-speed applications. Applications requiring the full 4 MHz bandwidth or 4 V/µs slew rate of the OP292GS will not function correctly with these substitutes.

Q: What are the supply voltage constraints when substituting with OPA213x parts?

A: OPA2131 and OPA2132 variants require minimum supply voltage of 9 V and 5 V respectively, compared to OP292GS minimum of 4.5 V. Applications operating at supply voltages below 5 V cannot use OPA213x parts. Maximum supply voltage for OPA213x is 36 V, which exceeds the OP292GS maximum of 33 V, providing additional headroom in high-voltage applications.

Q: What is the temperature operating range limitation of OPA213x substitutes?

A: OPA2131 and OPA2132 variants are rated for −40°C to 85°C operation, compared to OP292GS rating of −40°C to 125°C. Applications requiring operation above 85°C cannot use OPA213x parts. The OP292GS or LM2904WYDT (−40°C to 125°C) must be selected for high-temperature applications.

Q: Does BA2904YF-CE2 provide a suitable alternative to OP292GS?

A: BA2904YF-CE2 is a general-purpose dual-channel amplifier in an 8-SOP package with AEC-Q100 automotive qualification. However, it exhibits significantly lower performance specifications: 0.2 V/µs slew rate and 500 kHz gain-bandwidth product compared to OP292GS values of 4 V/µs and 4 MHz. This part is suitable only for low-frequency automotive applications where bandwidth and speed requirements are minimal. The package footprint (8-SOP, 4.40 mm width) differs from OP292GS (8-SOIC, 3.90 mm width), requiring PCB layout modification.

Q: What is the input bias current difference between OP292GS and OPA213x alternatives?

A: OP292GS exhibits 375 nA input bias current, while OPA2131 and OPA2132 variants deliver 5 pA input bias current. This 75,000× reduction in input bias current is achieved through J-FET input topology. Applications sensitive to input bias current effects (high-impedance signal sources, precision instrumentation) benefit from OPA213x substitution. General-purpose applications are unaffected by this difference.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. OP292GSZ, LM2904WYDT, LM258WDT, and all OPA213x variants carry ROHS3 compliance certification. BA2904YF-CE2 also carries ROHS3 compliance. All parts are REACH unaffected. These certifications meet modern environmental and regulatory requirements for commercial and industrial applications.

Q: What packaging options are available for substitute parts?

A: OP292GSZ is available in Tube packaging. LM2904WYDT and LM258WDT are available in Cut Tape (CT) & Digi-Reel® format. OPA2131UA and OPA2132U are available in Tube packaging. OPA2131UA/2K5, OPA2132U/2K5 are available in Cut Tape (CT) & Digi-Reel® format. BA2904YF-CE2 is available in Cut Tape (CT) & Digi-Reel® format. Packaging selection does not affect electrical performance and is determined by procurement and assembly requirements.

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