OP27EP Equivalent & Substitute Parts

Part Overview

The OP27EP is a general-purpose operational amplifier manufactured by Analog Devices Inc., housed in an 8-DIP through-hole package. This device is classified as obsolete, though 1150 units remain in stock as new original inventory. The OP27EP operates across a supply voltage range of 8V to 36V and is suitable for applications requiring moderate bandwidth and low input bias current in the 0°C to 70°C temperature range.

Due to its obsolete product status, identifying equivalent and substitute parts is necessary for design continuity, long-term availability assurance, and system reliability in new production runs or redesigns.

Substiute Parts

OP27EP

Analog Devices Inc.In Stock: 1208OP27EP Datasheet

Current PartRFQ

OP27EPZ

Analog Devices Inc.In Stock: 2211OP27EPZ Datasheet

DirectRFQ

OP07CN8#PBF

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

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TS512AIDT

STMicroelectronicsIn Stock: 3629TS512AIDT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP27EP is determined by alignment across the following critical parameters: amplifier type, number of circuits, slew rate, gain bandwidth product, input bias current, input offset voltage, supply voltage range, operating temperature range, mounting type, and package configuration.

Direct Equivalent (Same Base Product): The OP27EPZ represents a direct equivalent to the OP27EP. Both devices share identical electrical specifications and package form factor. The primary distinction is packaging format (tube versus standard) and product status (active versus obsolete).

Similar Substitutes (Compatible Electrical Performance): The OP07CN8#PBF is a similar general-purpose amplifier from Analog Devices Inc. in the same 8-DIP package. However, it exhibits reduced slew rate (0.25V/µs versus 2.8V/µs), lower gain bandwidth product (600 kHz versus 8 MHz), lower input bias current (1.8 nA versus 10 nA), and higher input offset voltage (60 µV versus 10 µV). The OP07CN8#PBF operates across a minimum supply voltage of 6V, compared to 8V for the OP27EP.

Cross-Manufacturer Alternative (Different Package and Circuit Count): The TS512AIDT is a general-purpose amplifier from STMicroelectronics with fundamentally different characteristics. It contains 2 circuits (versus 1), uses surface-mount 8-SOIC packaging (versus through-hole 8-DIP), operates at reduced slew rate (1.5V/µs), lower gain bandwidth product (3 MHz), and higher input bias current (50 nA). The TS512AIDT supports a lower minimum supply voltage (3V) and extended operating temperature range (−40°C to 125°C) with automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): The OP27EPZ is the recommended substitute for the OP27EP. Both devices are manufactured by Analog Devices Inc. and maintain identical electrical specifications, including slew rate, gain bandwidth product, input bias current, input offset voltage, and supply voltage range. The OP27EPZ carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring long-term availability and regulatory alignment. The device is available in tube packaging with 2200 units in stock. No circuit redesign is required for this substitution.

For Similar Performance (With Electrical Trade-offs): The OP07CN8#PBF is suitable only when reduced bandwidth and slew rate are acceptable. This device exhibits significantly lower gain bandwidth product (600 kHz versus 8 MHz) and slew rate (0.25V/µs versus 2.8V/µs), making it unsuitable for applications requiring high-speed signal processing. The OP07CN8#PBF offers superior input bias current (1.8 nA) and operates at lower minimum supply voltage (6V). This substitute is appropriate for precision, low-speed measurement applications where bandwidth is not a limiting factor.

For Cross-Manufacturer Alternative (With Significant Constraints): The TS512AIDT from STMicroelectronics is not recommended as a direct substitute due to fundamental architectural differences. This device contains 2 circuits versus 1, uses surface-mount packaging versus through-hole, and exhibits degraded electrical performance across slew rate, gain bandwidth product, and input offset voltage. The TS512AIDT is qualified for automotive applications (AEC-Q100) and supports extended temperature range (−40°C to 125°C), making it suitable only for redesigned systems requiring these specific attributes. PCB layout modification is mandatory for this substitution.

Frequently Asked Questions (FAQ)

Q: Can the OP27EPZ be used as a direct replacement for the OP27EP without circuit modification?

A: Yes. The OP27EPZ is electrically and mechanically identical to the OP27EP. Both devices share the same slew rate (2.8V/µs), gain bandwidth product (8 MHz), input bias current (10 nA), input offset voltage (10 µV), supply voltage range (8V to 36V), and 8-DIP through-hole package. No circuit redesign is required. The primary difference is packaging format (tube) and product status (active versus obsolete).

Q: Is the OP07CN8#PBF a suitable replacement for high-speed applications?

A: No. The OP07CN8#PBF exhibits significantly reduced bandwidth and slew rate compared to the OP27EP. The gain bandwidth product is 600 kHz (versus 8 MHz) and slew rate is 0.25V/µs (versus 2.8V/µs). This device is designed for precision, low-speed applications and is unsuitable for circuits requiring fast signal processing or high-frequency response.

Q: What are the package compatibility considerations for the TS512AIDT?

A: The TS512AIDT uses 8-SOIC surface-mount packaging, whereas the OP27EP uses 8-DIP through-hole packaging. These packages are not mechanically compatible. PCB redesign is required to accommodate the TS512AIDT, including trace routing modifications and solder reflow processing. Additionally, the TS512AIDT contains 2 circuits versus 1, requiring circuit topology evaluation.

Q: Does the OP27EPZ meet current regulatory compliance standards?

A: Yes. The OP27EPZ is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in most jurisdictions. The OP27EP does not specify RoHS status.

Q: What is the minimum supply voltage difference between the OP27EP and OP07CN8#PBF?

A: The OP27EP requires a minimum supply voltage of 8V, while the OP07CN8#PBF operates at a minimum of 6V. This 2V difference may be relevant for low-voltage applications, but the OP07CN8#PBF's significantly reduced bandwidth makes it unsuitable for most OP27EP applications regardless of supply voltage capability.

Q: Is the TS512AIDT suitable for industrial temperature range applications?

A: The TS512AIDT operates across −40°C to 125°C, exceeding the OP27EP's 0°C to 70°C range. However, the TS512AIDT is specifically qualified for automotive applications (AEC-Q100). Use in non-automotive industrial applications requires verification against specific system requirements and qualification standards.

Q: What inventory status should influence substitution decisions?

A: The OP27EPZ has 2200 units in stock (versus 1150 for OP27EP), providing superior long-term availability. The OP07CN8#PBF has 1564 units available, and the TS512AIDT has 3582 units. For production continuity, the OP27EPZ is the preferred choice due to active product status combined with adequate inventory levels.