OP297GS Equivalent & Substitute Parts

Part Overview

The OP297GS 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, though 1,852 units remain in stock as new original inventory. The OP297GS operates across a wide supply voltage range of 4V to 40V and maintains performance across the industrial temperature range of -40°C to 85°C. Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, long-term availability assurance, and production planning.

Key Parameters

Parameter	OP297GS Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Slew Rate	0.15	V/µs
Gain Bandwidth Product	500	kHz
Current - Input Bias	50	pA
Voltage - Input Offset	80	µV
Current - Supply	525 (x2 Channels)	µA
Voltage - Supply Span (Min)	4	V
Voltage - Supply Span (Max)	40	V
Operating Temperature	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the OP297GS is determined by compatibility across the following critical parameters:

Primary Compatibility Criteria:

Dual-channel (2 circuit) general-purpose operational amplifier architecture
8-SOIC surface-mount package with 0.154" (3.90mm) width
Supply voltage range encompassing the OP297GS minimum (4V) and maximum (40V) specifications
Operating temperature range that meets or exceeds -40°C to 85°C
Moisture sensitivity level MSL 1 (Unlimited)

Secondary Performance Considerations:

Slew rate, gain bandwidth product, input bias current, and input offset voltage determine functional equivalence within application-specific constraints
Supply current consumption affects power budget compatibility
Product status (Active vs. Obsolete) influences long-term availability

Substitute parts are grouped into two categories:

Direct Equivalents (Identical Electrical Specifications): Parts with matching slew rate, gain bandwidth product, input bias current, input offset voltage, and supply current specifications. These parts are pin-compatible and functionally interchangeable without circuit modification.

Functional Alternatives (Similar Electrical Specifications): Parts with different electrical performance characteristics but compatible package, pin configuration, and supply voltage range. These parts require application-level verification to confirm suitability.

Parameter Comparison

Part Number	Manufacturer	Product Status	Slew Rate (V/µs)	GBW (kHz)	Input Bias (pA)	Input Offset (µV)	Supply Current (µA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package
OP297GS	Analog Devices	Obsolete	0.15	500	50	80	525	4	40	-40 to 85	8-SOIC
OP297GSZ	Analog Devices	Active	0.15	500	50	80	525	4	40	-40 to 85	8-SOIC
OP297FSZ	Analog Devices	Active	0.15	500	35	50	525	4	40	-40 to 85	8-SOIC
LT1112IS8#TRPBF	Analog Devices	Active	0.3	750	80	25	350	2	40	-40 to 85	8-SOIC
LT1112MPS8#PBF	Analog Devices	Active	0.3	750	80	25	350	2	40	-55 to 125	8-SOIC
LT1112MPS8#TRPBF	Analog Devices	Active	0.3	750	80	25	350	2	40	-55 to 125	8-SOIC
LT1112S8#PBF	Analog Devices	Active	0.27	750	90	45	370	2	40	-40 to 85	8-SOIC
LT1112S8#TRPBF	Analog Devices	Active	0.27	750	90	45	370	2	40	-40 to 85	8-SOIC
LT1013CD	Texas Instruments	Active	0.4	1000	15000	60	350	5	30	0 to 70	8-SOIC
LT1013DDR	Texas Instruments	Active	0.4	1000	18000	90	320	5	30	0 to 70	8-SOIC
MC1458DT	STMicroelectronics	Active	0.8	1000	30000	1000	2300	5	30	0 to 70	8-SOIC

Engineering Selection Recommendations

Tier 1: Direct Replacement (Recommended for Immediate Substitution)

OP297GSZ is the primary recommended substitute. This part is manufactured by Analog Devices Inc. and maintains identical electrical specifications to the OP297GS across all measured parameters: slew rate (0.15 V/µs), gain bandwidth product (500 kHz), input bias current (50 pA), input offset voltage (80 µV), and supply current (525 µA). The OP297GSZ is classified as Active with ROHS3 compliance and REACH Unaffected status, ensuring long-term availability and regulatory compliance. Packaging is available in Tube format. This part requires no circuit modification and provides direct functional equivalence.

OP297FSZ is a secondary direct replacement option from Analog Devices Inc. This part shares identical slew rate, gain bandwidth product, and supply current specifications with the OP297GS. The OP297FSZ exhibits improved input bias current (35 pA versus 50 pA) and input offset voltage (50 µV versus 80 µV), representing superior performance characteristics. The part is Active status with ROHS3 compliance and REACH Unaffected status. No circuit modification is required.

Tier 2: Functional Alternatives (Suitable for Applications with Relaxed Performance Requirements)

LT1112 Series (LT1112IS8#TRPBF, LT1112MPS8#PBF, LT1112MPS8#TRPBF, LT1112S8#PBF, LT1112S8#TRPBF) represents a family of enhanced general-purpose operational amplifiers from Analog Devices Inc. These parts are Active status with ROHS3 compliance and REACH Unaffected status. The LT1112 series offers improved performance characteristics including higher slew rate (0.27–0.3 V/µs), higher gain bandwidth product (750 kHz), and lower supply current (320–370 µA). The LT1112 series operates across a lower minimum supply voltage (2V versus 4V), expanding application flexibility. Extended temperature variants (LT1112MPS8#PBF and LT1112MPS8#TRPBF) support -55°C to 125°C operation. Circuit verification is required to confirm compatibility with the lower minimum supply voltage and improved performance characteristics.

LT1013 Series (LT1013CD, LT1013DDR) from Texas Instruments represents a higher-performance alternative with 1 MHz gain bandwidth product and 0.4 V/µs slew rate. These parts are Active status with ROHS3 compliance and REACH Unaffected status. However, the LT1013 series operates with a minimum supply voltage of 5V (versus 4V for OP297GS) and maximum supply voltage of 30V (versus 40V for OP297GS), restricting application scope. Operating temperature range is limited to 0°C to 70°C. Input bias current is significantly higher (15–18 nA versus 50 pA). Application-level verification is mandatory before substitution.

MC1458DT from STMicroelectronics is a legacy general-purpose operational amplifier with 1 MHz gain bandwidth product and 0.8 V/µs slew rate. This part is Active status with ROHS3 compliance and REACH Unaffected status. However, the MC1458DT exhibits substantially higher supply current (2.3 mA versus 525 µA), significantly higher input bias current (30 nA versus 50 pA), and higher input offset voltage (1 mV versus 80 µV). Supply voltage range is restricted to 5V–30V. Operating temperature range is limited to 0°C to 70°C. This part is suitable only for applications where power consumption and precision are not critical constraints.

Frequently Asked Questions (FAQ)

Q: Can OP297GSZ be used as a direct replacement for OP297GS without any circuit modifications?

A: Yes. The OP297GSZ maintains identical electrical specifications across all critical parameters: slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, and supply voltage range. Both parts are housed in the 8-SOIC package with identical pinout. No circuit modification is required. The primary difference is product status (OP297GSZ is Active versus OP297GS is Obsolete) and packaging format (Tube for OP297GSZ).

Q: What is the key difference between OP297FSZ and OP297GSZ?

A: Both parts are manufactured by Analog Devices Inc. and share identical slew rate (0.15 V/µs), gain bandwidth product (500 kHz), and supply current (525 µA) specifications. The OP297FSZ exhibits superior input bias current (35 pA versus 50 pA) and input offset voltage (50 µV versus 80 µV). Both parts operate across the same supply voltage range (4V–40V) and temperature range (-40°C to 85°C). The OP297FSZ is suitable for applications requiring lower input offset voltage and bias current. No circuit modification is required for substitution.

Q: Can LT1112 series parts replace OP297GS in all applications?

A: LT1112 series parts are functionally compatible but exhibit different electrical characteristics. The LT1112 series offers higher slew rate (0.27–0.3 V/µs versus 0.15 V/µs), higher gain bandwidth product (750 kHz versus 500 kHz), and lower supply current (320–370 µA versus 525 µA). The minimum supply voltage is lower (2V versus 4V). These differences may affect circuit behavior in applications sensitive to slew rate, bandwidth, or supply voltage constraints. Application-level verification is required before substitution.

Q: What is the significance of the minimum supply voltage difference between OP297GS (4V) and LT1112 series (2V)?

A: The OP297GS requires a minimum supply voltage of 4V to operate within specification. The LT1112 series operates at a minimum supply voltage of 2V. If your application uses a supply voltage between 2V and 4V, the LT1112 series provides expanded operational capability. However, if your application uses a fixed 4V or higher supply voltage, both parts are compatible. Verify that your circuit design does not depend on the OP297GS minimum supply voltage specification.

Q: Why is the LT1013 series not recommended as a primary substitute?

A: The LT1013 series (LT1013CD, LT1013DDR) operates with a maximum supply voltage of 30V, compared to 40V for the OP297GS. Applications requiring supply voltages between 30V and 40V cannot use the LT1013 series. Additionally, the LT1013 series has a minimum supply voltage of 5V (versus 4V for OP297GS) and operating temperature range limited to 0°C to 70°C (versus -40°C to 85°C for OP297GS). Input bias current is significantly higher (15–18 nA versus 50 pA). The LT1013 series is suitable only for applications where these constraints are acceptable.

Q: What does "Product Status: Active" mean for substitute parts?

A: Product Status: Active indicates that the manufacturer continues to produce and support the part. Active parts have assured long-term availability, ongoing manufacturing support, and continued compliance with regulatory standards. This contrasts with the OP297GS, which is classified as Obsolete, meaning the manufacturer no longer produces the part and existing inventory is finite. Selecting Active substitute parts ensures design continuity and production sustainability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant and REACH Unaffected. The OP297GS does not include ROHS3 compliance information in the provided specifications. Substituting with ROHS3-compliant parts ensures compliance with current environmental and regulatory requirements for electronic components.

Q: What is the difference between packaging formats (Tube, Tape & Reel, Cut Tape)?

A: Packaging format affects handling, storage, and automated assembly compatibility. Tube packaging is suitable for manual handling and small-quantity applications. Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats are optimized for automated pick-and-place assembly equipment. Select packaging format based on your manufacturing process requirements. All substitute parts are available in at least one packaging format compatible with standard assembly processes.

Q: Can MC1458DT be used as a substitute for OP297GS?

A: MC1458DT is functionally compatible in terms of package and pinout but exhibits significantly different electrical characteristics. The MC1458DT has substantially higher supply current (2.3 mA versus 525 µA), higher input bias current (30 nA versus 50 pA), and higher input offset voltage (1 mV versus 80 µV). Supply voltage range is restricted to 5V–30V, and operating temperature range is limited to 0°C–70°C. MC1458DT is suitable only for applications where power consumption and precision are not critical constraints and where the restricted supply voltage and temperature ranges are acceptable.

Q: What is the Moisture Sensitivity Level (MSL) and why is it important?

A: Moisture Sensitivity Level (MSL) indicates the component's susceptibility to moisture-induced damage during storage and handling. MSL 1 (Unlimited) means the component has unlimited shelf life and does not require special moisture-control storage conditions. All parts listed in this reference, including the OP297GS and all substitutes, are classified as MSL 1 (Unlimited), ensuring compatibility in standard storage and handling environments.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message