ISL28217FBZ Equivalent & Substitute Parts

Part Overview

The ISL28217FBZ is a general-purpose operational amplifier manufactured by Renesas Electronics Corporation, configured as a dual-channel (2 circuit) device in an 8-SOIC surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The ISL28217FBZ operates across a wide supply voltage range of 4.5V to 40V and maintains performance across industrial temperature ranges from -40°C to 125°C.

Substiute Parts

ISL28217FBZ

Renesas Electronics CorporationIn Stock: 1394ISL28217FBZ Datasheet

Current PartRFQ

MC1458DT

STMicroelectronicsIn Stock: 1662MC1458DT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ISL28217FBZ is determined by strict alignment of the following electrical and mechanical parameters:

Mandatory Matching Criteria:

• Amplifier Type: General Purpose
• Number of Circuits: 2 (dual-channel configuration)
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

Functional Compatibility Parameters: The substitute part must operate within the electrical specifications of the ISL28217FBZ or provide equivalent or superior performance in the following areas:

• Slew Rate (minimum 0.5 V/µs)
• Gain Bandwidth Product (minimum 1.5 MHz)
• Input Bias Current (maximum 80 pA)
• Input Offset Voltage (maximum 8 µV)
• Supply Current (maximum 440 µA for dual channels)
• Output Current per Channel (minimum 43 mA)
• Supply Voltage Range (minimum 4.5V to 40V span)
• Operating Temperature Range (minimum -40°C to 125°C)

The MC1458DT from STMicroelectronics meets the mandatory matching criteria for package, mounting type, and circuit configuration. However, differences in electrical performance parameters exist and are documented in the Parameter Comparison table below.

Parameter Comparison

Engineering Selection Recommendations

ISL28217FBZ (Renesas Electronics Corporation)

The ISL28217FBZ is classified as obsolete. This part is suitable for replacement applications, legacy system maintenance, and existing inventory management. The component is ROHS3 compliant and carries a Moisture Sensitivity Level (MSL) of 2 with a 1-year shelf life. Current inventory availability is 1,310 pieces.

MC1458DT (STMicroelectronics) - Active Substitute

The MC1458DT is an active product offering direct mechanical and functional compatibility with the ISL28217FBZ. This part is ROHS3 compliant with an MSL of 1 (unlimited shelf life), providing superior long-term storage characteristics. Current inventory availability is 1,559 pieces.

The MC1458DT is suitable for new designs and production applications requiring an active, supported general-purpose dual operational amplifier in 8-SOIC packaging. Selection of the MC1458DT eliminates obsolescence risk associated with the ISL28217FBZ.

Key Differences Affecting Selection:

The MC1458DT exhibits the following deviations from ISL28217FBZ specifications:

• Operating temperature range is restricted to 0°C to 70°C (versus -40°C to 125°C for ISL28217FBZ)
• Maximum supply voltage is 30V (versus 40V for ISL28217FBZ)
• Input bias current is significantly higher at 30 nA (versus 80 pA for ISL28217FBZ)
• Input offset voltage is higher at 1 mV (versus 8 µV for ISL28217FBZ)
• Supply current consumption is higher at 2.3 mA (versus 440 µA for ISL28217FBZ)
• Output current per channel is lower at 25 mA (versus 43 mA for ISL28217FBZ)
• Gain bandwidth product is lower at 1 MHz (versus 1.5 MHz for ISL28217FBZ)

Applications requiring extended temperature operation below 0°C or above 70°C, supply voltages exceeding 30V, or the superior precision characteristics of the ISL28217FBZ must evaluate alternative solutions beyond the MC1458DT.

Frequently Asked Questions (FAQ)

Q: Can the MC1458DT be used as a direct replacement for the ISL28217FBZ in all applications?

A: The MC1458DT provides mechanical and functional compatibility in the 8-SOIC package configuration. However, application-specific requirements must be evaluated against the parameter differences documented in the Parameter Comparison table. Applications operating outside the 0°C to 70°C temperature range or requiring supply voltages above 30V cannot use the MC1458DT as a substitute.

Q: What are the primary electrical differences between these two parts?

A: The MC1458DT has higher input bias current (30 nA versus 80 pA), higher input offset voltage (1 mV versus 8 µV), higher supply current consumption (2.3 mA versus 440 µA), and lower output current capability per channel (25 mA versus 43 mA). The ISL28217FBZ offers superior precision and lower power consumption characteristics.

Q: Are both parts physically compatible with the same PCB layout?

A: Yes. Both the ISL28217FBZ and MC1458DT use identical 8-SOIC (0.154", 3.90mm Width) surface mount packaging. PCB footprints and land patterns are interchangeable.

Q: What is the significance of the product status difference?

A: The ISL28217FBZ is classified as obsolete, indicating that Renesas Electronics Corporation has discontinued manufacturing and support. The MC1458DT is an active product with ongoing manufacturing and technical support from STMicroelectronics. For new designs and long-term production, the active status of the MC1458DT provides supply chain continuity and manufacturer support.

Q: How do the moisture sensitivity levels affect handling and storage?

A: The ISL28217FBZ has an MSL of 2 with a 1-year shelf life, requiring controlled storage conditions and careful handling protocols. The MC1458DT has an MSL of 1 with unlimited shelf life, providing greater flexibility in storage and handling without time-based degradation concerns.

Q: Are there compliance or regulatory differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Both carry the same ECCN (EAR99) and HTSUS (8542.33.0001) classifications. No regulatory or compliance barriers exist to substitution from a compliance perspective.

Q: What applications would require the ISL28217FBZ over the MC1458DT?

A: Applications requiring extended temperature operation (-40°C to 125°C), supply voltages up to 40V, superior input precision (8 µV offset), ultra-low input bias current (80 pA), higher output current capability (43 mA per channel), or lower supply current consumption (440 µA) must use the ISL28217FBZ or identify alternative solutions.