LMC7215IM Equivalent & Substitute Parts

Part Overview

The LMC7215IM is a general-purpose comparator IC manufactured by Texas Instruments, housed in an 8-SOIC package. This part operates with supply voltages ranging from 2V to 8V (single supply) or ±1V to ±4V (dual supply), delivering push-pull output with 30mA typical output current. The LMC7215IM is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

LMC7215IM

Texas InstrumentsIn Stock: 2434LMC7215IM Datasheet

Current PartRFQ

LMC7215IM/NOPB

Texas InstrumentsIn Stock: 1220LMC7215IM/NOPB Datasheet

DirectRFQ

BU5255SHFV-TR

Rohm SemiconductorIn Stock: 941BU5255SHFV-TR Datasheet

MFR RecommendedRFQ

BU7231G-TR

Rohm SemiconductorIn Stock: 54342BU7231G-TR Datasheet

MFR RecommendedRFQ

BU7231SG-TR

ROHM SemiconductorIn Stock: 691BU7231SG-TR Datasheet

MFR RecommendedRFQ

MAX40004ANS02+

Analog Devices Inc./Maxim IntegratedIn Stock: 980MAX40004ANS02+ Datasheet

MFR RecommendedRFQ

MAX40004ANS02+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2366MAX40004ANS02+T Datasheet

MFR RecommendedRFQ

MAX9646EUK+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2151MAX9646EUK+T Datasheet

MFR RecommendedRFQ

TC75S70L6X,LF

Toshiba Semiconductor and StorageIn Stock: 5958TC75S70L6X,LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMC7215IM is determined by the following critical parameters: output type (push-pull), general-purpose comparator function, supply voltage compatibility, output current capability, propagation delay, and operating temperature range. Substitute parts must maintain functional equivalence within these electrical specifications while accommodating package and compliance differences.

The substitute parts are grouped into the following categories:

Direct Equivalent (Same Manufacturer, Different Packaging): LMC7215IM/NOPB maintains identical electrical specifications with active product status and improved RoHS3 compliance.

Manufacturer-Recommended Alternatives (Rohm Semiconductor): BU5255SHFV-TR, BU7231G-TR, and BU7231SG-TR provide comparable performance in smaller packages (5-HVSOF and 5-SSOP) with active status and RoHS3 compliance. These parts operate at lower supply voltages (1.8V ~ 5.5V) and feature faster propagation delays.

Manufacturer-Recommended Alternatives (Analog Devices/Maxim): MAX40004ANS02+T and MAX9646EUK+T offer push-pull comparator functionality in compact packages (4-WLP and SOT-23-5) with extended temperature ranges and active product status.

Manufacturer-Recommended Alternative (Toshiba): TC75S70L6X,LF provides general-purpose comparator performance in a 6-UFDFN package with significantly faster propagation delay (800ns typical).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Improved Compliance: LMC7215IM/NOPB is the primary choice, offering identical electrical performance to the obsolete LMC7215IM while maintaining active product status and RoHS3 compliance. This part is suitable for designs requiring no PCB layout modifications.

For Space-Constrained Applications: BU7231G-TR and BU7231SG-TR provide compact 5-SSOP packaging with active status and RoHS3 compliance. BU7231SG-TR extends the operating temperature range to 105°C. Both parts operate at lower supply voltages and deliver faster propagation delays than the original part.

For Ultra-Compact Designs: MAX40004ANS02+T offers the smallest footprint (4-WLP) with extended operating temperature range (-40°C ~ 125°C) and active product status. This part is suitable for space-critical applications where propagation delay of 25µs is acceptable.

For Low-Voltage Applications: MAX9646EUK+T operates from 1V supply voltage with the fastest propagation delay (15µs) and lowest quiescent current (1.1µA). This part is ideal for battery-powered and low-power designs.

For High-Speed Applications: TC75S70L6X,LF delivers the fastest propagation delay (800ns typical) with active status and RoHS3 compliance, suitable for applications requiring rapid comparator response.

All substitute parts maintain push-pull output configuration and general-purpose comparator functionality. Selection should account for package compatibility with existing PCB layouts, supply voltage requirements, output current demands, and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can LMC7215IM/NOPB be used as a direct replacement for LMC7215IM?

A: Yes. LMC7215IM/NOPB is electrically identical to LMC7215IM, with the same supply voltage range (2V ~ 8V, ±1V ~ 4V), output current (30mA typical), and propagation delay (24µs maximum). The primary differences are active product status and RoHS3 compliance. Both parts use 8-SOIC packaging, requiring no PCB modifications.

Q: What are the key differences between Rohm Semiconductor substitutes (BU5255SHFV-TR, BU7231G-TR, BU7231SG-TR) and the original LMC7215IM?

A: Rohm parts operate at lower supply voltages (1.8V ~ 5.5V versus 2V ~ 8V), feature significantly faster propagation delays (1.6µs to 1.7µs versus 24µs), and use smaller packages (5-HVSOF or 5-SSOP versus 8-SOIC). Output current is reduced (5mA to 6mA versus 30mA). BU7231SG-TR extends operating temperature to 105°C. All three are RoHS3 compliant and active products.

Q: Which substitute part has the lowest power consumption?

A: MAX9646EUK+T has the lowest quiescent current at 1.1µA maximum. MAX40004ANS02+T follows at 1.3µA. Both are significantly lower than the original LMC7215IM at 1µA maximum, making them suitable for power-sensitive applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant. The original LMC7215IM is RoHS non-compliant. LMC7215IM/NOPB provides RoHS3 compliance while maintaining identical electrical specifications.

Q: What is the fastest substitute part for propagation delay?

A: TC75S70L6X,LF offers the fastest propagation delay at 800ns typical, compared to 24µs maximum for the original LMC7215IM. This part is suitable for high-speed comparator applications requiring rapid response times.

Q: Can substitute parts with lower supply voltage ranges replace the LMC7215IM in all applications?

A: Substitution depends on the application's supply voltage requirements. Parts like BU5255SHFV-TR, BU7231G-TR, and BU7231SG-TR operate from 1.8V minimum, which is higher than the LMC7215IM's 2V minimum. For applications requiring operation below 1.8V, MAX9646EUK+T (1V minimum) or TC75S70L6X,LF (1.3V minimum) are suitable alternatives.

Q: Which substitute part is best for high-temperature applications?

A: BU7231SG-TR and MAX40004ANS02+T support extended operating temperatures. BU7231SG-TR operates to 105°C, while MAX40004ANS02+T operates to 125°C. The original LMC7215IM and most other substitutes are rated to 85°C.

Q: Do all substitute parts maintain the same output current capability?

A: No. The original LMC7215IM delivers 30mA typical output current. Rohm parts (BU5255SHFV-TR, BU7231G-TR, BU7231SG-TR) deliver 5mA to 6mA. Toshiba TC75S70L6X,LF delivers 18mA. Maxim parts do not specify typical output current. Applications requiring high output current should verify compatibility before substitution.