OP42GPZ Equivalent & Substitute Parts

Part Overview

The OP42GPZ is a J-FET input operational amplifier manufactured by Analog Devices Inc., housed in an 8-DIP through-hole package. This linear amplifier IC features a single circuit configuration with a 10 MHz gain bandwidth product and 50 V/µs slew rate, designed for applications requiring low input bias current and low input offset voltage characteristics. The part is currently in active product status with 1835 units in stock. Equivalent and substitute parts are identified based on matching package type, circuit count, mounting configuration, and electrical performance parameters within acceptable operational ranges.

Substiute Parts

OP42GPZ

Analog Devices Inc.In Stock: 1866OP42GPZ Datasheet

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SA5534P

Texas InstrumentsIn Stock: 1230SA5534P Datasheet

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TLE2071CP

Texas InstrumentsIn Stock: 3199TLE2071CP Datasheet

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TLE2071IP

Texas InstrumentsIn Stock: 1478TLE2071IP Datasheet

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TLE2081AIP

Texas InstrumentsIn Stock: 1909TLE2081AIP Datasheet

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TLE2081CP

Texas InstrumentsIn Stock: 1858TLE2081CP Datasheet

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TLE2081IP

Texas InstrumentsIn Stock: 1273TLE2081IP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OP42GPZ are identified based on the following critical parameters:

Package Compatibility: All substitute parts must use the 8-DIP (0.300", 7.62mm) through-hole package to ensure direct PCB compatibility without layout modifications.

Circuit Configuration: All substitutes maintain a single-circuit operational amplifier topology in 8-PDIP supplier packaging.

Amplifier Type: J-FET input amplifiers are grouped separately from general-purpose amplifiers due to fundamental differences in input stage architecture and bias current characteristics.

Electrical Performance Alignment: Substitutes are selected where gain bandwidth product (10 MHz), operating temperature range (-40°C ~ 85°C or 0°C ~ 70°C), and supply voltage ranges overlap with the OP42GPZ specifications.

Compliance Standards: All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the main part.

The substitute parts are divided into two functional groups: J-FET amplifiers (TLE2071IP, TLE2071CP, TLE2081IP, TLE2081CP, TLE2081AIP) and general-purpose amplifiers (SA5534P). J-FET substitutes share the same input stage technology as the OP42GPZ, while the general-purpose substitute offers an alternative topology with different bias current and offset voltage characteristics.

Parameter Comparison

Engineering Selection Recommendations

J-FET Amplifier Substitutes (TLE2071IP, TLE2071CP, TLE2081IP, TLE2081CP, TLE2081AIP):

These Texas Instruments Excalibur™ series parts maintain J-FET input stage architecture identical to the OP42GPZ. All five variants are ROHS3 compliant and REACH unaffected. The TLE2071IP and TLE2081IP variants support the full -40°C ~ 85°C operating temperature range matching the OP42GPZ specification. The TLE2071CP and TLE2081CP variants operate within 0°C ~ 70°C, which is a subset of the OP42GPZ range. All J-FET substitutes feature lower input bias current (20 pA versus 130 pA) and lower input offset voltage (470–490 µV versus 1.5 mV), with reduced supply current (1.7 mA versus 5.1 mA). These parts are suitable for applications where the OP42GPZ is specified and where the extended temperature range or lower power consumption of the TLE series is beneficial.

General-Purpose Amplifier Substitute (SA5534P):

The SA5534P is a general-purpose amplifier from Texas Instruments with a different input stage topology (bipolar rather than J-FET). This part is ROHS3 compliant and REACH unaffected but carries a Last Time Buy product status, indicating limited future availability. The SA5534P operates within -40°C ~ 85°C and shares the 10 MHz gain bandwidth product. However, it exhibits significantly higher input bias current (500 nA versus 130 pA) and lower slew rate (13 V/µs versus 50 V/µs). The SA5534P is suitable only for applications where J-FET input characteristics are not critical and where the higher bias current and lower slew rate are acceptable.

Temperature Range Considerations:

Applications requiring full -40°C ~ 85°C operation must use TLE2071IP, TLE2081IP, TLE2081AIP, or SA5534P. The TLE2071CP and TLE2081CP variants are restricted to 0°C ~ 70°C operation.

Supply Voltage Considerations:

The OP42GPZ requires a minimum supply voltage of 16 V. The TLE2071 and TLE2081 series support operation from 4.5 V minimum, providing greater flexibility in low-voltage applications. The SA5534P requires a minimum of 10 V.

Frequently Asked Questions (FAQ)

Q: Can the TLE2071IP or TLE2081IP be used as direct replacements for the OP42GPZ?

A: Yes. Both parts share the 8-DIP package, J-FET input topology, 10 MHz gain bandwidth product, and -40°C ~ 85°C operating temperature range. Pin-for-pin compatibility is maintained. The TLE series offers improved input bias current (20 pA versus 130 pA) and lower supply current consumption (1.7 mA versus 5.1 mA).

Q: What is the difference between TLE2071IP and TLE2081IP?

A: Both parts are functionally equivalent J-FET amplifiers in the Excalibur™ series with identical electrical specifications. The primary difference is the base product number designation (TLE2071 versus TLE2081). Both support -40°C ~ 85°C operation and are suitable substitutes for the OP42GPZ.

Q: Why does the SA5534P have a "Last Time Buy" status?

A: Last Time Buy status indicates that Texas Instruments has announced the end of production for this part. While currently available in inventory (1150 units), future availability is limited. This part should be selected only when J-FET input characteristics are not required and when long-term supply continuity is not critical.

Q: Can I use the TLE2071CP or TLE2081CP in an application requiring -40°C ~ 85°C operation?

A: No. The TLE2071CP and TLE2081CP are rated for 0°C ~ 70°C operation only. For full -40°C ~ 85°C compatibility, use TLE2071IP, TLE2081IP, or TLE2081AIP.

Q: What are the key electrical differences between the OP42GPZ and the TLE2071/TLE2081 series?

A: The TLE series exhibits lower input bias current (20 pA versus 130 pA), lower input offset voltage (470–490 µV versus 1.5 mV), and lower supply current (1.7 mA versus 5.1 mA). The OP42GPZ has a higher slew rate (50 V/µs versus 45 V/µs). Both maintain 10 MHz gain bandwidth product and 8-DIP package compatibility.

Q: Is the SA5534P suitable for high-speed applications?

A: No. The SA5534P has a slew rate of 13 V/µs, significantly lower than the OP42GPZ (50 V/µs) and TLE series (45 V/µs). Applications requiring fast signal transitions should use J-FET amplifiers (OP42GPZ, TLE2071, or TLE2081 series).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (TLE2071IP, TLE2071CP, TLE2081IP, TLE2081CP, TLE2081AIP, and SA5534P) are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the OP42GPZ.

Q: What is the minimum supply voltage for each substitute?

A: The OP42GPZ requires 16 V minimum. The TLE2071 and TLE2081 series require 4.5 V minimum, providing greater low-voltage flexibility. The SA5534P requires 10 V minimum.

Q: Can I mix OP42GPZ and TLE2071IP parts in the same circuit board design?

A: Yes, provided the circuit design accommodates the electrical differences. Both parts are pin-compatible in 8-DIP packages. However, the lower input bias current and offset voltage of the TLE series may affect circuit performance if precision matching is required. Circuit validation is necessary for mixed-part designs.