OP90GS-REEL Equivalent & Substitute Parts

Part Overview

The OP90GS-REEL is a general purpose operational amplifier manufactured by Analog Devices Inc., housed in an 8-SOIC surface mount package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. The OP90GS-REEL operates across a wide supply voltage range of 1.6 V to 36 V with low input bias current and minimal input offset voltage, making it suitable for precision analog applications requiring low power consumption.

Substiute Parts

OP90GS-REEL

Analog Devices Inc.In Stock: 921OP90GS-REEL Datasheet

Current PartRFQ

OP90GSZ-REEL

Analog Devices Inc.In Stock: 2797OP90GSZ-REEL Datasheet

DirectRFQ

MAX4403AUD+

Analog Devices Inc./Maxim IntegratedIn Stock: 2013MAX4403AUD+ Datasheet

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MC33071DR2G

onsemiIn Stock: 3822MC33071DR2G Datasheet

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MC33171DT

STMicroelectronicsIn Stock: 5453MC33171DT Datasheet

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OPA2683ID

Texas InstrumentsIn Stock: 2423OPA2683ID Datasheet

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TL074ACD

Texas InstrumentsIn Stock: 4015TL074ACD Datasheet

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TL074CDRG4

Texas InstrumentsIn Stock: 260104TL074CDRG4 Datasheet

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TL3474CD

Texas InstrumentsIn Stock: 1491TL3474CD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP90GS-REEL is determined by alignment of critical electrical and mechanical parameters. The primary substitution criteria are:

Electrical Compatibility Parameters:

• Amplifier Type: General Purpose
• Number of Circuits: 1 (single amplifier per package)
• Voltage Supply Range: Minimum 1.6 V to Maximum 36 V
• Operating Temperature Range: -40°C to 85°C
• Package Type: 8-SOIC surface mount

Secondary Compatibility Parameters:

• Slew Rate: 0.012 V/µs
• Input Bias Current: 4 nA
• Input Offset Voltage: 125 µV
• Supply Current: 14 µA
• Output Current per Channel: 5 mA

Substitute parts are grouped into two categories: Direct Substitutes (identical electrical and mechanical specifications) and Similar Substitutes (compatible package and general purpose amplifier classification with differing performance characteristics). Direct substitutes maintain full pin-for-pin and functional compatibility. Similar substitutes may require circuit evaluation due to differences in slew rate, bandwidth, supply voltage requirements, or circuit count.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Recommended Primary Choice):

The OP90GSZ-REEL is the direct equivalent to the OP90GS-REEL. Both devices share identical electrical specifications, package configuration, and operating parameters. The OP90GSZ-REEL differs only in packaging format (Tape & Reel versus standard reel configuration) and product status (Active versus Obsolete). The OP90GSZ-REEL is ROHS3 compliant and currently in active production with 2700 units in stock, providing supply continuity and regulatory compliance for new designs and production runs.

Compatible Substitutes (Single-Circuit, 8-SOIC Package):

MC33171DT (STMicroelectronics) and MC33071DR2G (onsemi) are compatible general purpose amplifiers in 8-SOIC packages. Both are active products with ROHS3 compliance. MC33171DT operates across 4 V to 44 V supply range with 2 V/µs slew rate and 220 µA supply current. MC33071DR2G operates across 3 V to 44 V supply range with 13 V/µs slew rate and 1.9 mA supply current. These substitutes are suitable for applications where the OP90GS-REEL's ultra-low slew rate is not a critical requirement and higher performance characteristics are acceptable.

Multi-Circuit Alternatives (Functional Equivalents):

TL3474CD (Texas Instruments) is a four-circuit general purpose amplifier in 14-SOIC package with 4 V to 36 V supply range. This device is obsolete but provides functional equivalence for applications requiring multiple amplifier stages. MAX4403AUD+ (Analog Devices/Maxim Integrated) is a four-circuit rail-to-rail amplifier in 14-TSSOP package with 2.5 V to 5.5 V supply range, suitable for low-voltage applications. These multi-circuit options require PCB layout modifications due to different package types.

Specialized Substitute (High-Speed Applications):

OPA2683ID (Texas Instruments) is a current feedback amplifier with two circuits in 8-SOIC package. This device exhibits significantly higher slew rate (540 V/µs) and bandwidth (200 MHz) compared to the OP90GS-REEL, making it suitable only for applications requiring high-frequency performance. The OPA2683ID has MSL rating of 2 (1 Year) and requires 5 V to 12 V supply range, limiting its applicability to the original design's wide supply voltage requirement.

Frequently Asked Questions (FAQ)

Q: Can OP90GSZ-REEL directly replace OP90GS-REEL in existing designs?

A: Yes. The OP90GSZ-REEL is a direct functional and electrical equivalent. The only difference is packaging format (Tape & Reel) and product status (Active). No circuit modifications are required. Pin configuration, electrical performance, and operating parameters are identical.

Q: What is the primary reason to substitute the OP90GS-REEL?

A: The OP90GS-REEL is classified as obsolete. Substitution is necessary to ensure long-term supply availability, maintain production continuity, and comply with current regulatory standards (ROHS3). The OP90GSZ-REEL provides identical performance with active product status.

Q: Are MC33171DT and MC33071DR2G pin-compatible with OP90GS-REEL?

A: Both devices use the 8-SOIC package with identical pin spacing (0.154", 3.90mm width). However, pin functionality may differ. Verify pinout compatibility in device datasheets before substitution. These are functional alternatives rather than direct pin-for-pin replacements.

Q: Can I use MAX4403AUD+ as a substitute?

A: MAX4403AUD+ is functionally equivalent but not a direct substitute. It contains four amplifier circuits versus one in the OP90GS-REEL, uses a different package (14-TSSOP), and operates at lower supply voltages (2.5 V to 5.5 V). Use only if your application requires multiple amplifier stages and operates within the specified voltage range.

Q: What are the key electrical differences between OP90GS-REEL and MC33071DR2G?

A: MC33071DR2G has higher slew rate (13 V/µs versus 0.012 V/µs), higher input bias current (100 nA versus 4 nA), higher supply current (1.9 mA versus 14 µA), and higher output current capability (30 mA versus 5 mA). These differences make MC33071DR2G suitable for higher-speed applications but less suitable for ultra-low-power designs.

Q: Is OPA2683ID suitable for direct substitution?

A: No. OPA2683ID is a current feedback amplifier with two circuits, different package type (8-SOIC but different pinout), and significantly different electrical characteristics (540 V/µs slew rate, 200 MHz bandwidth). Use only for applications requiring high-frequency performance and where the dual-circuit configuration is beneficial.

Q: What is the moisture sensitivity level (MSL) difference between substitutes?

A: Most substitutes have MSL rating of 1 (Unlimited), matching the OP90GS-REEL. OPA2683ID has MSL rating of 2 (1 Year), requiring more stringent moisture control during storage and handling. This affects component shelf life and storage requirements.

Q: Can I use TL3474CD as a substitute?

A: TL3474CD is functionally equivalent but not a direct substitute. It contains four amplifier circuits in a 14-SOIC package versus one circuit in 8-SOIC for the OP90GS-REEL. Additionally, TL3474CD is obsolete. Use only if your application requires multiple amplifier stages and you can accommodate the larger package footprint.

Q: What supply voltage range is common across all substitutes?

A: The OP90GS-REEL operates at 1.6 V to 36 V. MC33171DT and MC33071DR2G support 4 V to 44 V and 3 V to 44 V respectively, providing broader high-voltage capability. MAX4403AUD+ and OPA2683ID operate at narrower ranges (2.5 V to 5.5 V and 5 V to 12 V), limiting their applicability to low-voltage designs.

Q: Are all active substitutes ROHS3 compliant?

A: Yes. All active product substitutes (OP90GSZ-REEL, MC33171DT, MC33071DR2G, MAX4403AUD+, OPA2683ID) are ROHS3 compliant. Obsolete products (OP90GS-REEL, TL3474CD) do not have current ROHS3 certification status listed.