OP37GS8#PBF Equivalent & Substitute Parts

Part Overview

The OP37GS8#PBF is a general-purpose operational amplifier manufactured by Analog Devices Inc., housed in an 8-SO surface mount package. This linear amplifier integrated circuit features a single amplification circuit with a 63 MHz gain bandwidth product and 17 V/µs slew rate, designed for applications requiring low input offset voltage and low input bias current. The part is currently active in production with 819 units in stock. Equivalent and substitute parts are identified to address packaging variations, extended temperature ranges, and alternative manufacturer sourcing while maintaining electrical compatibility within specified parameter tolerances.

Substiute Parts

OP37GS8#PBF

Analog Devices Inc.In Stock: 928OP37GS8#PBF Datasheet

Current PartRFQ

OP37GSZ

Analog Devices Inc.In Stock: 22853OP37GSZ Datasheet

UpgradeRFQ

OP37GSZ-REEL

Analog Devices Inc.In Stock: 1161OP37GSZ-REEL Datasheet

UpgradeRFQ

OP37GSZ-REEL7

Analog Devices Inc.In Stock: 55377OP37GSZ-REEL7 Datasheet

UpgradeRFQ

OPA37GU/2K5

Texas InstrumentsIn Stock: 1983OPA37GU/2K5 Datasheet

SimilarRFQ

UA741CDT

STMicroelectronicsIn Stock: 82224UA741CDT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP37GS8#PBF is determined by electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Parameters (Must Match or Exceed):

• Slew Rate: 17 V/µs minimum
• Gain Bandwidth Product: 63 MHz minimum
• Current - Input Bias: 15 nA maximum
• Voltage - Input Offset: 30 µV maximum
• Voltage - Supply Span: 8 V to 36 V minimum range
• Operating Temperature: Must support −25°C to 85°C minimum

Mechanical Parameters (Must Match):

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Number of Circuits: 1

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories: Upgrade Substitutes (Analog Devices Inc. variants with identical or superior electrical specifications and extended temperature range) and Similar Substitutes (alternative manufacturers with comparable but not identical electrical characteristics).

Parameter Comparison

Engineering Selection Recommendations

Upgrade Substitutes (Analog Devices Inc.):

The OP37GSZ, OP37GSZ-REEL, and OP37GSZ-REEL7 are direct electrical equivalents to the OP37GS8#PBF with extended operating temperature range (−40°C to 85°C versus −25°C to 85°C). These parts maintain identical slew rate, gain bandwidth product, input bias current, and input offset voltage specifications. The primary differences are packaging format (tube versus cut tape/Digi-Reel) and inventory availability. All three variants are ROHS3 compliant with MSL 1 rating. Selection among these three should be based on procurement requirements: OP37GSZ for tube packaging, OP37GSZ-REEL or OP37GSZ-REEL7 for tape and reel formats with higher stock availability.

Similar Substitute (Texas Instruments OPA37GU/2K5):

The OPA37GU/2K5 provides equivalent gain bandwidth product (63 MHz) and input bias current (15 nA) with superior input offset voltage (25 µV versus 30 µV) and extended maximum supply voltage (44 V versus 36 V). However, the slew rate is reduced to 11.9 V/µs. This part is suitable for applications where the lower slew rate is acceptable and the extended supply voltage range is beneficial. Moisture sensitivity level is MSL 3, requiring controlled storage conditions.

Similar Substitute (STMicroelectronics UA741CDT):

The UA741CDT is a legacy general-purpose operational amplifier with significantly reduced performance specifications: slew rate of 0.5 V/µs, gain bandwidth product of 1 MHz, and input offset voltage of 1 mV. Operating temperature range is limited to 0°C to 70°C. This part is not electrically equivalent and should not be selected as a direct substitute for the OP37GS8#PBF unless application requirements explicitly permit substantial performance degradation.

Frequently Asked Questions (FAQ)

Q: Can OP37GSZ be used as a direct replacement for OP37GS8#PBF?

A: Yes. The OP37GSZ is electrically equivalent with identical slew rate (17 V/µs), gain bandwidth product (63 MHz), input bias current (15 nA), and input offset voltage (30 µV). The primary difference is extended operating temperature range (−40°C to 85°C). Both are ROHS3 compliant with MSL 1 rating. The substitution is valid for all applications within the OP37GS8#PBF operating temperature specification.

Q: What is the difference between OP37GSZ, OP37GSZ-REEL, and OP37GSZ-REEL7?

A: These three parts are electrically identical. The differences are packaging format and supplier delivery method. OP37GSZ is supplied in tube packaging. OP37GSZ-REEL and OP37GSZ-REEL7 are supplied on cut tape with Digi-Reel format. Selection depends on procurement and assembly requirements. OP37GSZ-REEL7 has significantly higher inventory availability (55,300 units).

Q: Is OPA37GU/2K5 a suitable substitute?

A: OPA37GU/2K5 is a similar part with comparable gain bandwidth product (63 MHz) but reduced slew rate (11.9 V/µs versus 17 V/µs). It is suitable only for applications where the lower slew rate does not impact performance. The part offers superior input offset voltage (25 µV) and extended maximum supply voltage (44 V). Moisture sensitivity is MSL 3, requiring controlled storage.

Q: Why is UA741CDT listed as a substitute if performance is significantly lower?

A: UA741CDT is listed as a similar part based on package compatibility and general-purpose amplifier classification. However, electrical performance is substantially degraded: slew rate is 0.5 V/µs, gain bandwidth product is 1 MHz, and input offset voltage is 1 mV. Operating temperature range is also limited to 0°C to 70°C. This part is not recommended as a direct substitute and should only be considered if application requirements explicitly permit these performance reductions.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (OP37GSZ, OP37GSZ-REEL, OP37GSZ-REEL7, OPA37GU/2K5, and UA741CDT) are ROHS3 compliant. Moisture sensitivity levels vary: Analog Devices parts are MSL 1 (Unlimited), OPA37GU/2K5 is MSL 3 (168 Hours), and UA741CDT is MSL 1 (Unlimited).

Q: Can OP37GS8#PBF be used in applications requiring −40°C operation?

A: No. The OP37GS8#PBF operating temperature range is −25°C to 85°C. For applications requiring −40°C operation, use OP37GSZ, OP37GSZ-REEL, or OP37GSZ-REEL7, which support −40°C to 85°C.

Q: What is the package compatibility requirement?

A: All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, which is mechanically and electrically compatible with the OP37GS8#PBF. No PCB layout modifications are required.