OP492GS Equivalent & Substitute Parts

Part Overview

The OP492GS is a general-purpose operational amplifier integrated circuit manufactured by Analog Devices Inc., configured as a 4-circuit device in a 14-SOIC surface-mount package. This part is classified as obsolete, though 3,059 units remain in stock as new original inventory. The OP492GS operates across a wide supply voltage range of 4.5 V to 33 V and maintains performance across the industrial temperature range of -40°C to 125°C. Due to its obsolete status, identification of equivalent and substitute parts is necessary for design continuity, long-term availability assurance, and production planning.

Key Parameters

Parameter	Value
Manufacturer	Analog Devices Inc.
Part Number	OP492GS
Product Status	Obsolete
Amplifier Type	General Purpose
Number of Circuits	4
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Slew Rate	4 V/µs
Gain Bandwidth Product	4 MHz
Current - Input Bias	375 nA
Voltage - Input Offset	1.4 mV
Current - Supply	1 mA (x4 Channels)
Current - Output / Channel	10.5 mA
Voltage - Supply Span (Min)	4.5 V
Voltage - Supply Span (Max)	33 V
Operating Temperature	-40°C ~ 125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the OP492GS is determined by the following critical parameters:

Primary Substitution Criteria:

Number of circuits: 4 (quad configuration)
Package type: 14-SOIC surface-mount
Amplifier classification: General Purpose
Supply voltage range compatibility: Minimum 4.5 V, Maximum 33 V
Operating temperature range: -40°C to 125°C
Slew rate: 4 V/µs
Gain bandwidth product: 4 MHz

Substitution Categories:

Direct Equivalent: Parts with identical electrical specifications and packaging, differing only in product status or packaging format (tube vs. tape & reel).

Functional Equivalent: Parts with 4-circuit general-purpose amplifier configuration in 14-SOIC package, with electrical parameters within acceptable operating ranges for the OP492GS application space.

Alternative Configuration: Parts with different amplifier types (J-FET, voltage feedback) or circuit counts that may serve specific application requirements but require circuit-level evaluation.

Parameter Comparison

Part Number	Manufacturer	Product Status	Amplifier Type	Number of Circuits	Package	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)
OP492GS	Analog Devices	Obsolete	General Purpose	4	14-SOIC	4	4	375	1.4	1	10.5	4.5	33	-40 to 125
OP492GSZ	Analog Devices	Active	General Purpose	4	14-SOIC	4	4	375	1.4	1	10.5	4.5	33	-40 to 125
BA2902YF-CE2	Rohm Semiconductor	Active	General Purpose	4	14-SOP	0.2	0.5	20	2	0.7	30	3	36	-40 to 125
LF247DT	STMicroelectronics	Active	J-FET	4	14-SO	16	4	0.02	3	1.4	40	44	44	-40 to 105
LF347D	STMicroelectronics	Active	J-FET	4	14-SO	16	3	0.02	3	1.4	40	44	44	0 to 70
LF347DT	STMicroelectronics	Active	J-FET	4	14-SO	16	4	0.02	3	1.4	40	44	44	0 to 70
LMH6642MAX/NOPB	Texas Instruments	Active	Voltage Feedback	1	8-SOIC	135	130	1.6	1	2.7	75	2.7	12.8	-40 to 85
MC33074ADR2G	onsemi	Active	General Purpose	4	14-SOIC	13	4.5	100	0.5	1.9	30	3	44	-40 to 85
MC33074DR2G	onsemi	Active	General Purpose	4	14-SOIC	13	4.5	100	1	1.9	30	3	44	-40 to 85
MC33179DR2G	onsemi	Active	General Purpose	4	14-SOIC	2	5	100	0.15	1.7	100	4	36	-40 to 85
MC34074ADR2G	onsemi	Active	General Purpose	4	14-SOIC	13	4.5	100	0.5	1.9	30	3	44	0 to 70

Engineering Selection Recommendations

Direct Replacement (Identical Specifications):

OP492GSZ is the active-status equivalent of OP492GS. Both parts are manufactured by Analog Devices Inc. and share identical electrical specifications, including 4 V/µs slew rate, 4 MHz gain bandwidth product, 375 nA input bias current, and 1.4 mV input offset voltage. The OP492GSZ is available in tube packaging with 15,800 units in stock and carries ROHS3 compliance and REACH unaffected status. This part provides direct functional replacement with improved long-term availability.

Functional Equivalents (4-Circuit General Purpose, 14-SOIC Package):

MC33074ADR2G and MC33074DR2G (onsemi) provide 4-circuit general-purpose amplification in 14-SOIC packaging with active product status. These parts feature 13 V/µs slew rate and 4.5 MHz gain bandwidth product, exceeding OP492GS performance. Supply voltage range extends to 3 V minimum and 44 V maximum, providing broader compatibility. Input bias current is lower at 100 nA. Operating temperature range is -40°C to 85°C. Both parts carry ROHS3 compliance and REACH unaffected status.

MC33179DR2G (onsemi) offers 4-circuit general-purpose configuration in 14-SOIC with 5 MHz gain bandwidth product and 100 mA output current per channel, supporting higher load requirements. Supply range is 4 V to 36 V. Operating temperature is -40°C to 85°C. ROHS3 compliant and REACH unaffected.

MC34074ADR2G (onsemi) matches MC33074ADR2G specifications but operates across 0°C to 70°C temperature range, suitable for commercial-grade applications.

Alternative Configurations (Different Amplifier Type or Circuit Count):

LF247DT and LF347DT (STMicroelectronics) are J-FET input amplifiers with 4-circuit configuration in 14-SO package. These parts feature significantly higher slew rate (16 V/µs) and extremely low input bias current (20 pA), suitable for high-impedance signal sources. Supply voltage range is fixed at 44 V. Operating temperature for LF347DT is 0°C to 70°C. Both carry ROHS3 compliance and REACH unaffected status. These parts require circuit-level evaluation due to different amplifier topology.

LF347D (STMicroelectronics) provides J-FET configuration with 3 MHz gain bandwidth product and 0°C to 70°C operating range in tube packaging.

BA2902YF-CE2 (Rohm Semiconductor) is a 4-circuit general-purpose amplifier in 14-SOP package with push-pull output configuration. This automotive-qualified part (AEC-Q100) features lower slew rate (0.2 V/µs) and gain bandwidth product (500 kHz), with supply range 3 V to 36 V. Suitable for automotive applications requiring AEC-Q100 qualification.

Not Recommended for Direct Substitution:

LMH6642MAX/NOPB (Texas Instruments) is a single-circuit voltage feedback amplifier in 8-SOIC package. The single-circuit configuration and different package type make this unsuitable for direct OP492GS replacement, despite active product status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can OP492GSZ be used as a direct replacement for OP492GS?

A: Yes. OP492GSZ is manufactured by Analog Devices Inc. with identical electrical specifications to OP492GS. Both parts feature 4 V/µs slew rate, 4 MHz gain bandwidth product, 375 nA input bias current, and operate across -40°C to 125°C. The primary difference is product status (OP492GSZ is active) and packaging format (tube vs. original packaging). Electrical performance and pinout are identical.

Q: What are the key differences between OP492GS and MC33074ADR2G?

A: Both are 4-circuit general-purpose amplifiers in 14-SOIC packages with active product status. MC33074ADR2G features higher slew rate (13 V/µs vs. 4 V/µs), higher gain bandwidth product (4.5 MHz vs. 4 MHz), lower input bias current (100 nA vs. 375 nA), and lower input offset voltage (0.5 mV vs. 1.4 mV). MC33074ADR2G supply range extends to 3 V minimum (vs. 4.5 V) and 44 V maximum (vs. 33 V). Operating temperature is -40°C to 85°C (vs. -40°C to 125°C). These differences indicate MC33074ADR2G is a performance-enhanced alternative suitable for most applications requiring OP492GS functionality.

Q: Why would I select LF247DT over MC33074ADR2G?

A: LF247DT is a J-FET input amplifier with 16 V/µs slew rate and 20 pA input bias current, compared to MC33074ADR2G's 13 V/µs and 100 nA. J-FET input topology is required for applications with very high source impedance or where extremely low input bias current is critical. LF247DT also provides 40 mA output current per channel versus MC33074ADR2G's 30 mA. However, LF247DT operates at fixed 44 V supply and has 0°C to 70°C temperature range, requiring circuit-level evaluation for compatibility.

Q: Is BA2902YF-CE2 suitable for non-automotive applications?

A: BA2902YF-CE2 is automotive-qualified (AEC-Q100) but can be used in non-automotive applications. However, this part features significantly lower slew rate (0.2 V/µs vs. 4 V/µs) and gain bandwidth product (500 kHz vs. 4 MHz) compared to OP492GS. Selection should be based on application bandwidth requirements. The push-pull output configuration and lower performance specifications make this part suitable only for low-frequency, low-bandwidth applications.

Q: What is the impact of operating temperature range differences?

A: OP492GS operates across -40°C to 125°C (industrial range). MC33074ADR2G and MC33179DR2G operate to -40°C to 85°C (commercial range). MC34074ADR2G operates 0°C to 70°C (commercial range). LF347D and LF347DT operate 0°C to 70°C. Selection depends on application environment. Industrial applications requiring full -40°C to 125°C operation must use OP492GSZ or verify substitute part performance at temperature extremes through datasheet specifications.

Q: Can I use a single-circuit amplifier like LMH6642MAX/NOPB to replace OP492GS?

A: No. LMH6642MAX/NOPB is a single-circuit amplifier, while OP492GS is a 4-circuit device. Direct substitution is not possible without significant circuit redesign. LMH6642MAX/NOPB would require four separate packages to achieve equivalent circuit count, increasing board space and cost. This part is not recommended for OP492GS replacement.

Q: What packaging formats are available for equivalent parts?

A: OP492GSZ is available in tube packaging. MC33074ADR2G, MC33074DR2G, MC33179DR2G, and MC34074ADR2G are available in cut tape (CT) and Digi-Reel format. LF247DT and LF347DT are available in tape & reel (TR). BA2902YF-CE2 is available in cut tape and Digi-Reel format. LF347D is available in tube packaging. Selection of packaging format depends on production volume and assembly equipment compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance and REACH unaffected status. OP492GS does not specify RoHS status, but OP492GSZ and all substitute parts meet current environmental compliance requirements.

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