OP27GP Equivalent & Substitute Parts

Part Overview

The OP27GP is a general-purpose operational amplifier manufactured by Analog Devices Inc., housed in an 8-PDIP through-hole package. This device is classified as obsolete, though 1,838 units remain in stock as new original inventory. The OP27GP delivers a gain-bandwidth product of 8 MHz with a slew rate of 2.8 V/µs, making it suitable for precision analog signal processing applications requiring moderate bandwidth and low input offset voltage specifications.

Due to its obsolete product status, locating equivalent or substitute components is necessary for ongoing production support, design continuity, and long-term supply chain planning. Active alternatives with comparable electrical characteristics and package compatibility are available from multiple manufacturers.

Substiute Parts

OP27GP

Analog Devices Inc.In Stock: 1853OP27GP Datasheet

Current PartRFQ

OP27GPZ

Analog Devices Inc.In Stock: 17481OP27GPZ Datasheet

DirectRFQ

OP07CN8#PBF

Analog Devices Inc.In Stock: 1583OP07CN8#PBF Datasheet

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ISL28208FBZ-T7

Renesas Electronics CorporationIn Stock: 1116ISL28208FBZ-T7 Datasheet

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MCP6002T-I/SN

Microchip TechnologyIn Stock: 241262MCP6002T-I/SN Datasheet

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OPA27GP

Texas InstrumentsIn Stock: 7989OPA27GP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP27GP is determined by alignment across five critical parameter categories:

1. Package and Mounting Compatibility: The OP27GP uses an 8-PDIP through-hole package. Direct substitutes must maintain identical package geometry (8-DIP, 0.300" spacing, 7.62mm) and through-hole mounting to ensure PCB compatibility without layout redesign.

2. Electrical Performance Envelope: Substitutes must operate within the supply voltage range (8 V to 36 V minimum/maximum) and maintain input bias current and input offset voltage specifications suitable for the application. Slew rate and gain-bandwidth product define signal fidelity and frequency response.

3. Circuit Count: The OP27GP contains a single operational amplifier circuit. Substitutes with identical circuit count (1 circuit) are direct replacements. Multi-circuit devices (2 or more circuits) are classified as similar alternatives and require application-level evaluation.

4. Product Status and Availability: Active products with established supply chains are preferred over obsolete or last-time-buy status components. Compliance certifications (RoHS3, REACH) indicate long-term manufacturability.

5. Thermal and Environmental Specifications: Operating temperature range (-40°C to 85°C) and moisture sensitivity level (MSL 1) define reliability in target environments.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Package and Circuit Count):

OP27GPZ (Analog Devices Inc.) is the primary direct substitute for OP27GP. Both devices share identical electrical specifications (2.8 V/µs slew rate, 8 MHz gain-bandwidth product, 15 nA input bias current, 30 µV input offset voltage) and package geometry (8-DIP through-hole). OP27GPZ carries active product status with ROHS3 compliance and MSL 1 rating, providing superior supply chain continuity compared to the obsolete OP27GP. Inventory availability is significantly higher (17,408 units versus 1,838 units).

OPA27GP (Texas Instruments) is a functionally equivalent alternative with identical circuit count and package type. Electrical performance is comparable with 8 MHz gain-bandwidth product and 15 nA input bias current. Input offset voltage is marginally lower (25 µV versus 30 µV). Supply voltage range extends to 44 V maximum (versus 36 V for OP27GP), providing broader operational flexibility. OPA27GP carries last-time-buy status, indicating limited future availability; however, current inventory (7,900 units) supports near-term requirements. ROHS3 compliance is confirmed.

Similar Alternatives (Different Package or Circuit Count):

OP07CN8#PBF (Analog Devices Inc.) maintains 8-DIP through-hole package compatibility but exhibits significantly reduced electrical performance. Slew rate is 0.25 V/µs (versus 2.8 V/µs) and gain-bandwidth product is 0.6 MHz (versus 8 MHz). Input bias current is superior at 1.8 nA. Operating temperature range is restricted to 0°C to 70°C. This device is suitable only for low-frequency, precision DC applications where bandwidth is not a constraint.

ISL28208FBZ-T7 (Renesas Electronics Corporation) and MCP6002T-I/SN (Microchip Technology) are surface-mount alternatives with dual-circuit configurations. Both require PCB redesign due to 8-SOIC package geometry (0.154" width versus 0.300" for DIP). ISL28208FBZ-T7 offers rail-to-rail output capability and extended operating temperature to 125°C. MCP6002T-I/SN provides extremely low input bias current (1 pA) but operates at reduced supply voltages (1.8 V to 6 V maximum). These devices are applicable only when PCB layout modification is feasible and dual-channel functionality is beneficial.

Compliance and Supply Chain Considerations:

OP27GPZ is recommended as the primary replacement strategy due to active product status, ROHS3 compliance, unlimited moisture sensitivity rating, and electrical equivalence. OPA27GP serves as a secondary option with extended supply voltage capability but carries last-time-buy status. Surface-mount alternatives (ISL28208FBZ-T7, MCP6002T-I/SN) require design modification and are not recommended for direct substitution in existing through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can OP27GPZ be used as a direct replacement for OP27GP without PCB modification?

A: Yes. OP27GPZ is electrically and mechanically identical to OP27GP. Both devices use 8-DIP through-hole packaging with 0.300" lead spacing. Electrical specifications (slew rate, gain-bandwidth product, input bias current, input offset voltage, supply voltage range, operating temperature) are identical. No PCB layout changes are required.

Q: Why is OP27GP classified as obsolete when substitute parts are available?

A: OP27GP has reached end-of-life status at Analog Devices Inc., meaning the manufacturer no longer produces new units. Existing inventory (1,838 units) represents remaining stock. OP27GPZ is the active production equivalent from the same manufacturer, ensuring long-term supply continuity and compliance with current manufacturing standards (ROHS3).

Q: What is the difference between OP27GPZ and OPA27GP?

A: Both devices are single-circuit, 8-DIP through-hole operational amplifiers with 8 MHz gain-bandwidth product and 15 nA input bias current. OPA27GP is manufactured by Texas Instruments and offers a maximum supply voltage of 44 V (versus 36 V for OP27GPZ). OPA27GP carries last-time-buy status, indicating limited future availability. OP27GPZ is the preferred choice for new designs due to active product status.

Q: Can ISL28208FBZ-T7 or MCP6002T-I/SN replace OP27GP in existing designs?

A: These devices are not direct replacements. Both use 8-SOIC surface-mount packages, requiring PCB redesign. ISL28208FBZ-T7 contains two operational amplifier circuits (versus one in OP27GP) and operates at reduced slew rate (0.45 V/µs versus 2.8 V/µs). MCP6002T-I/SN is limited to 6 V maximum supply voltage and exhibits significantly higher input offset voltage (4.5 mV versus 30 µV). These alternatives are suitable only for new designs where surface-mount technology and dual-channel functionality are advantageous.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life under standard storage conditions (typically 30°C, 85% relative humidity). No special moisture-control packaging or baking procedures are required before soldering. OP27GP and OP27GPZ both carry MSL 1 ratings, ensuring straightforward handling and storage.

Q: Are all substitute parts ROHS3 compliant?

A: OP27GPZ, OPA27GP, OP07CN8#PBF, ISL28208FBZ-T7, and MCP6002T-I/SN are all ROHS3 compliant. The original OP27GP does not specify RoHS status. ROHS3 compliance confirms the absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers) and supports regulatory requirements in electronics manufacturing.

Q: Which substitute part has the highest operating temperature range?

A: ISL28208FBZ-T7 operates from -40°C to 125°C, the widest range among all listed alternatives. OP27GP, OP27GPZ, OPA27GP, and MCP6002T-I/SN operate from -40°C to 85°C. OP07CN8#PBF is restricted to 0°C to 70°C. Temperature range selection depends on the target application environment.

Q: What is the current inventory status for each substitute part?

A: OP27GPZ has the highest inventory (17,408 units), followed by MCP6002T-I/SN (241,240 units). OPA27GP inventory is 7,900 units. OP07CN8#PBF has 1,564 units. ISL28208FBZ-T7 has 1,077 units. The original OP27GP has 1,838 units remaining. Inventory levels are subject to change and should be verified with suppliers for production commitments.