OPA202IDR Equivalent & Substitute Parts

Part Overview

The OPA202IDR is a general-purpose operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features a single push-pull output circuit with a 1 MHz gain-bandwidth product and operates across a wide supply voltage range of 4.5V to 36V. The OPA202IDR maintains Active product status with full RoHS3 compliance and is suitable for general analog signal conditioning applications requiring moderate bandwidth and low input offset voltage specifications.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining package compatibility and operational temperature ranges.

Substiute Parts

OPA202IDR

Texas InstrumentsIn Stock: 2137OPA202IDR Datasheet

Current PartRFQ

AD621ARZ-RL

Analog Devices Inc.In Stock: 2588AD621ARZ-RL Datasheet

MFR RecommendedRFQ

AD8429BRZ-R7

Analog Devices Inc.In Stock: 1505AD8429BRZ-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPA202IDR is determined by the following criteria:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure mechanical and electrical compatibility with existing PCB layouts.

Supply Voltage Range: Substitute parts must support the full operating supply voltage span of 4.5V to 36V, or a range that encompasses the application's required voltage window.

Output Current Capability: The OPA202IDR delivers 35 mA per output channel. Substitute parts must meet or exceed this specification to maintain equivalent drive capability.

Operating Temperature Range: The OPA202IDR operates from -40°C to 125°C. Substitute parts operating within this range or an extended range are acceptable.

Regulatory Compliance: All substitute parts must maintain RoHS3 compliance and REACH Unaffected status to satisfy procurement and environmental requirements.

Amplifier Classification: While the OPA202IDR is classified as a general-purpose amplifier, instrumentation amplifiers with equivalent electrical performance and package compatibility are included as substitutes when they satisfy the above electrical and mechanical criteria.

Parameter Comparison

Engineering Selection Recommendations

AD621ARZ-RL Substitution Considerations:

The AD621ARZ-RL is an instrumentation amplifier with a 1 MHz bandwidth specification comparable to the OPA202IDR. This device operates within the 4.6V to 36V supply range, covering the OPA202IDR's minimum requirement. However, the AD621ARZ-RL output current per channel is 18 mA, which is below the OPA202IDR's 35 mA specification. The operating temperature range extends only to 85°C, limiting use in applications requiring the full -40°C to 125°C range. The AD621ARZ-RL is suitable for applications where reduced output current and narrower temperature range are acceptable trade-offs.

AD8429BRZ-R7 Substitution Considerations:

The AD8429BRZ-R7 is an instrumentation amplifier with superior performance characteristics. It provides a 22 V/µs slew rate and 15 MHz bandwidth, exceeding the OPA202IDR's specifications. Output current capability matches the OPA202IDR at 35 mA per channel. The operating temperature range of -40°C to 125°C aligns with the OPA202IDR. The minimum supply voltage requirement is 8V, which exceeds the OPA202IDR's 4.5V minimum. The AD8429BRZ-R7 is suitable for applications operating at 8V or higher supply voltages where enhanced bandwidth and slew rate performance are beneficial.

Both substitute parts maintain Active product status, RoHS3 compliance, and REACH Unaffected status, satisfying regulatory requirements equivalent to the OPA202IDR.

Frequently Asked Questions (FAQ)

Q: Can the AD621ARZ-RL replace the OPA202IDR in all applications?

A: The AD621ARZ-RL is not a direct replacement for all applications. While package compatibility and supply voltage range are suitable, the output current per channel is 18 mA compared to the OPA202IDR's 35 mA. Applications requiring the full 35 mA output current cannot use the AD621ARZ-RL. Additionally, the operating temperature range is limited to -40°C to 85°C, restricting use in applications requiring operation above 85°C.

Q: What is the primary limitation of the AD8429BRZ-R7 as a substitute?

A: The AD8429BRZ-R7 requires a minimum supply voltage of 8V, whereas the OPA202IDR operates from 4.5V. Applications powered by supplies below 8V cannot use the AD8429BRZ-R7. For applications with 8V or higher supply voltages, the AD8429BRZ-R7 offers superior performance with higher slew rate and bandwidth.

Q: Are all substitute parts in the same 8-SOIC package?

A: Yes. The OPA202IDR, AD621ARZ-RL, and AD8429BRZ-R7 all use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical compatibility with existing PCB layouts and footprints.

Q: Do the substitute parts meet the same regulatory requirements as the OPA202IDR?

A: Yes. Both AD621ARZ-RL and AD8429BRZ-R7 are RoHS3 compliant and REACH Unaffected, matching the OPA202IDR's regulatory status. All three devices maintain Active product status.

Q: Which substitute part offers the best performance upgrade?

A: The AD8429BRZ-R7 provides the most significant performance enhancement with a 22 V/µs slew rate and 15 MHz bandwidth compared to the OPA202IDR's 0.35 V/µs and 1 MHz specifications. However, this upgrade requires a minimum 8V supply voltage and higher quiescent current consumption of 6.7 mA.

Q: Can I use the AD621ARZ-RL in high-temperature applications?

A: The AD621ARZ-RL is limited to -40°C to 85°C operation. Applications requiring operation above 85°C must use the OPA202IDR or AD8429BRZ-R7, both of which support -40°C to 125°C.