MCP6V34T-E/ST Equivalent & Substitute Parts

Part Overview

The MCP6V34T-E/ST is a zero-drift operational amplifier manufactured by Microchip Technology, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as Active product status and is designed for applications requiring precision amplification with minimal input offset voltage and low input bias current.

Zero-drift amplifiers are essential in precision measurement, sensor signal conditioning, and data acquisition systems where offset drift over temperature and time must be minimized. Substitute parts are identified when equivalent electrical performance, package compatibility, and functional characteristics align with the original specification, enabling component interchangeability in production and field applications.

Substiute Parts

MCP6V34T-E/ST

Microchip TechnologyIn Stock: 879MCP6V34T-E/ST Datasheet

Current PartRFQ

ISL28433FVZ

Renesas Electronics CorporationIn Stock: 6755ISL28433FVZ Datasheet

MFR RecommendedRFQ

ISL28433FVZ-T13

Renesas Electronics CorporationIn Stock: 5725ISL28433FVZ-T13 Datasheet

MFR RecommendedRFQ

ISL28433FVZ-T7A

Renesas Electronics CorporationIn Stock: 1096ISL28433FVZ-T7A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCP6V34T-E/ST is determined by strict alignment of the following critical parameters:

Mandatory Compatibility Criteria:

• Amplifier Type: Zero-Drift configuration
• Number of Circuits: 4 independent amplifier channels
• Output Type: Rail-to-Rail output capability
• Package / Case: 14-TSSOP form factor with identical pin pitch and dimensions
• Mounting Type: Surface Mount technology
• Supply Voltage Range: Minimum 1.8 V to maximum 5.5 V (substitute must support this range or exceed it)
• Operating Temperature Range: -40°C to 125°C
• RoHS Compliance: ROHS3 Compliant

Performance Parameters Evaluated:

• Slew Rate, Gain Bandwidth Product, Input Offset Voltage, Input Bias Current, and Supply Current are secondary selection criteria that may vary within acceptable engineering tolerances for the application.

The identified substitute parts (ISL28433FVZ, ISL28433FVZ-T13, ISL28433FVZ-T7A) manufactured by Renesas Electronics Corporation meet all mandatory compatibility criteria and are electrically equivalent for direct substitution in the 14-TSSOP package footprint.

Parameter Comparison

Engineering Selection Recommendations

ISL28433FVZ (Active Status, Tube Packaging)

The ISL28433FVZ is the primary substitute for the MCP6V34T-E/ST. This device maintains full electrical and mechanical compatibility with identical 14-TSSOP package geometry, rail-to-rail output configuration, and 4-circuit zero-drift amplifier topology. The ISL28433FVZ demonstrates superior performance characteristics: input offset voltage of 2 µV (versus 8 µV), higher gain bandwidth product of 400 kHz (versus 300 kHz), and improved slew rate of 0.2 V/µs (versus 0.13 V/µs). Supply voltage range extends to 6.0 V maximum (versus 5.5 V), providing broader application flexibility. Both devices are ROHS3 compliant and operate across the identical temperature range of -40°C to 125°C. The ISL28433FVZ is currently in Active product status with 6739 units in stock inventory.

ISL28433FVZ-T13 (Active Status, Unspecified Packaging)

The ISL28433FVZ-T13 is electrically and mechanically identical to the ISL28433FVZ, offering the same performance enhancements and compatibility profile. This variant maintains Active product status with 5676 units available in inventory. Packaging designation is not specified in the provided data; clarification with the supplier is required for procurement planning.

ISL28433FVZ-T7A (Obsolete Status, Cut Tape & Digi-Reel® Packaging)

The ISL28433FVZ-T7A is electrically equivalent to the ISL28433FVZ and ISL28433FVZ-T13 but carries Obsolete product status. This variant is supplied in Cut Tape (CT) and Digi-Reel® packaging format with 1045 units currently in inventory. Selection of this part is not recommended for new designs or long-term production due to obsolescence classification, though it remains available for legacy system support or short-term requirements.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and are REACH unaffected, meeting regulatory requirements equivalent to the original MCP6V34T-E/ST. Moisture sensitivity level differs (MSL 2 with 1-year shelf life for ISL28433 variants versus MSL 1 unlimited for MCP6V34T-E/ST); storage and handling procedures must be adjusted accordingly.

Frequently Asked Questions (FAQ)

Q: Can ISL28433FVZ be used as a direct replacement for MCP6V34T-E/ST in existing PCB designs?

A: Yes. The ISL28433FVZ is a direct pin-compatible substitute with identical 14-TSSOP package dimensions, pin pitch, and functional configuration. No PCB layout modifications are required. The device operates across the same temperature range (-40°C to 125°C) and supports the same supply voltage range (1.8 V to 5.5 V, with ISL28433FVZ rated to 6.0 V maximum). Electrical performance is superior or equivalent across all specified parameters.

Q: What are the performance differences between MCP6V34T-E/ST and ISL28433FVZ?

A: The ISL28433FVZ offers improved performance in three key areas: (1) Input offset voltage is reduced from 8 µV to 2 µV, providing better precision in low-level signal applications; (2) Gain bandwidth product increases from 300 kHz to 400 kHz, enabling faster signal processing; (3) Slew rate improves from 0.13 V/µs to 0.2 V/µs, supporting higher-speed transient response. Supply current is slightly lower (18 µA versus 21 µA per 4 channels), and output current per channel is marginally reduced (19 mA versus 21 mA). These differences are within acceptable engineering tolerances for most applications.

Q: Are there packaging or storage differences I should be aware of?

A: Yes. The MCP6V34T-E/ST is supplied in Tape & Reel (TR) packaging with MSL 1 (unlimited shelf life). The ISL28433FVZ variants are supplied in Tube or Cut Tape & Digi-Reel® packaging with MSL 2 (1-year shelf life). MSL 2 classification requires controlled storage conditions: maintain relative humidity between 30% and 60% and temperature between 16°C and 35°C. Devices must be used within one year of manufacture date. Verify packaging format and moisture sensitivity requirements with your procurement department before ordering.

Q: Why is ISL28433FVZ-T7A marked as Obsolete?

A: The ISL28433FVZ-T7A carries Obsolete product status, indicating that Renesas Electronics Corporation has discontinued active production and support for this specific variant. While 1045 units remain in current inventory, future availability is not guaranteed. For new designs or production runs extending beyond current inventory, selection of the Active-status ISL28433FVZ or ISL28433FVZ-T13 is strongly advised to ensure long-term supply chain continuity.

Q: What is the difference between ISL28433FVZ and ISL28433FVZ-T13?

A: Both devices are electrically and mechanically identical with equivalent performance specifications and Active product status. The suffix designations (-T13 versus base FVZ) typically indicate different manufacturing date codes or internal traceability codes assigned by Renesas Electronics. From an engineering substitution perspective, both parts are interchangeable. Packaging format for ISL28433FVZ-T13 is not specified in the provided data; contact the supplier for clarification on tape format, reel size, or other packaging details if this information is critical for your assembly process.

Q: Can I use ISL28433FVZ at supply voltages above 5.5 V?

A: The ISL28433FVZ is rated for supply voltages up to 6.0 V maximum, compared to the MCP6V34T-E/ST maximum of 5.5 V. If your application requires operation between 5.5 V and 6.0 V, the ISL28433FVZ provides this additional headroom. However, all other electrical specifications (gain, bandwidth, offset voltage, bias current) are guaranteed only within the specified supply voltage range. Confirm that your circuit design and component ratings support the higher voltage before implementation.

Q: Are there any cross-reference considerations with other zero-drift amplifiers?

A: The substitute parts list for ISL28433FVZ-T13 includes references to OPA4317IPWR, TSZ124IPT, and TSZ124IYPT. These are alternative zero-drift amplifiers from other manufacturers (Texas Instruments and others) that may offer similar functionality. However, these devices are not included in the primary substitute list for MCP6V34T-E/ST and should not be assumed as direct equivalents without independent verification of package compatibility, pin assignment, and electrical specifications.