MCP6471T-E/LTY Equivalent & Substitute Parts

Part Overview

The MCP6471T-E/LTY is a general purpose operational amplifier manufactured by Microchip Technology, designed for rail-to-rail applications in a compact SC-70-5 surface mount package. This single-circuit amplifier operates across a 2V to 5.5V supply range and is classified as Active product status with full RoHS3 compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges. The MCP6471T-E/LTY serves applications requiring low input bias current, minimal input offset voltage, and low supply current consumption in space-constrained designs.

Substiute Parts

MCP6471T-E/LTY

Microchip TechnologyIn Stock: 1587MCP6471T-E/LTY Datasheet

Current PartRFQ

MAX4412EXK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2812MAX4412EXK+T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCP6471T-E/LTY is determined by compatibility across the following critical parameters:

Mechanical Compatibility: Package type must be 5-TSSOP, SC-70-5, or SOT-353 to ensure direct board-level replacement without layout modification.

Electrical Compatibility: Substitute parts must support rail-to-rail output operation and single-circuit configuration. Supply voltage range must encompass or overlap the 2V to 5.5V specification of the main part.

Performance Envelope: Substitute parts must maintain functional equivalence within the application's tolerance for slew rate, gain bandwidth product, input bias current, input offset voltage, and supply current consumption.

Compliance & Status: Both main and substitute parts must carry Active product status and maintain RoHS3 compliance to ensure long-term availability and regulatory alignment.

The MAX4412EXK+T qualifies as a substitute based on matching package designation (SC-70-5), rail-to-rail output capability, single-circuit topology, overlapping supply voltage range (2.7V to 5.5V), and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

MCP6471T-E/LTY is the primary selection for applications requiring ultra-low input bias current (1 pA), minimal supply current consumption (100 µA), and extended operating temperature range (-40°C to 125°C). This part is suitable for battery-powered, low-power, and temperature-sensitive applications where power efficiency and precision are critical.

MAX4412EXK+T serves as a substitute when higher slew rate (140 V/µs versus 1.1 V/µs) and wider bandwidth performance (500 MHz -3dB bandwidth) are required, or when the minimum supply voltage requirement of 2.7V is acceptable. This part is appropriate for signal conditioning, transimpedance amplifier configurations, and applications demanding faster signal response. The operating temperature range is limited to -40°C to 85°C, which may restrict use in extended temperature environments.

Both parts maintain Active product status and full RoHS3 compliance, ensuring regulatory conformance and long-term component availability. Selection between these parts depends on the specific application's power budget, bandwidth requirements, and temperature operating envelope.

Frequently Asked Questions (FAQ)

Q: Can MAX4412EXK+T directly replace MCP6471T-E/LTY on the PCB?

A: Yes, both parts use identical SC-70-5 package geometry and pin configuration. Direct board-level substitution is mechanically feasible without layout modification.

Q: What are the key electrical differences between these parts?

A: The MAX4412EXK+T exhibits significantly higher slew rate (140 V/µs vs. 1.1 V/µs), wider bandwidth (500 MHz vs. 2 MHz), and higher supply current (1.7 mA vs. 100 µA). The MCP6471T-E/LTY maintains superior input bias current performance (1 pA vs. 1.6 µA).

Q: Is the MAX4412EXK+T suitable for low-power applications?

A: No. The MAX4412EXK+T draws 1.7 mA supply current compared to 100 µA for the MCP6471T-E/LTY, making it unsuitable for battery-powered or ultra-low-power designs.

Q: What is the minimum supply voltage difference?

A: The MCP6471T-E/LTY operates from 2V minimum, while the MAX4412EXK+T requires 2.7V minimum. Applications operating below 2.7V must use the MCP6471T-E/LTY.

Q: Are there temperature range limitations with substitution?

A: Yes. The MCP6471T-E/LTY operates to 125°C, while the MAX4412EXK+T is rated to 85°C maximum. Applications requiring operation above 85°C must use the MCP6471T-E/LTY.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS3 compliant, carry Moisture Sensitivity Level 1 (Unlimited), and maintain Active product status.

Q: Which part should be selected for precision DC amplification?

A: The MCP6471T-E/LTY is preferred for precision DC applications due to lower input offset voltage (1.5 mV vs. 0.4 mV for MAX4412EXK+T) and superior input bias current characteristics (1 pA vs. 1.6 µA).