LMC6772BIM/NOPB Equivalent & Substitute Parts

Part Overview

The LMC6772BIM/NOPB is a dual-channel general-purpose comparator manufactured by Texas Instruments in 8-SOIC surface-mount packaging. This device features open-drain output configuration and operates across a wide supply voltage range of 2.7V to 15V (single supply) or ±1.35V to ±7.5V (dual supply). The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Substiute Parts

LMC6772BIM/NOPB

Texas InstrumentsIn Stock: 1350LMC6772BIM/NOPB Datasheet

Current PartRFQ

LMC6772BIMX/NOPB

Texas InstrumentsIn Stock: 7834LMC6772BIMX/NOPB Datasheet

MFR RecommendedRFQ

LMC6772AIM/NOPB

Texas InstrumentsIn Stock: 1230LMC6772AIM/NOPB Datasheet

MFR RecommendedRFQ

LMC7221BIM/NOPB

Texas InstrumentsIn Stock: 1781LMC7221BIM/NOPB Datasheet

Parametric EquivalentRFQ

BU7233F-E2

Rohm SemiconductorIn Stock: 2001BU7233F-E2 Datasheet

MFR RecommendedRFQ

BU7233SF-E2

Rohm SemiconductorIn Stock: 6185BU7233SF-E2 Datasheet

MFR RecommendedRFQ

BU7253F-E2

Rohm SemiconductorIn Stock: 2052BU7253F-E2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LMC6772BIM/NOPB is determined by the following critical parameters: number of comparator elements (2), output type (open-drain), package type (8-SOIC surface mount), supply voltage range compatibility, input offset voltage, propagation delay, and operating temperature range.

Substitute parts are grouped into two categories:

Category 1: Direct Functional Equivalents (Texas Instruments LMC Series) These parts maintain identical or superior electrical specifications with the same dual-element configuration and open-drain output. Substitutes include LMC6772BIMX/NOPB (active product status, cut tape packaging), LMC6772AIM/NOPB (improved input offset of 5mV, last-time-buy status), and LMC7221BIM/NOPB (single-element variant with parametric equivalence in core performance metrics).

Category 2: Cross-Manufacturer Alternatives (Rohm Semiconductor BU Series) These CMOS comparators provide functional equivalence with different electrical characteristics. The BU7233F-E2, BU7233SF-E2, and BU7253F-E2 offer lower supply voltage range (1.8V ~ 5.5V), superior propagation delay performance, and reduced quiescent current. These parts are suitable for applications where the LMC6772BIM/NOPB supply voltage range is not fully utilized.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Manufacturer, Active Status): LMC6772BIMX/NOPB is the primary substitute for the obsolete LMC6772BIM/NOPB. Both parts maintain identical electrical specifications and 8-SOIC packaging. The BIMX variant is currently in active production with cut tape and digi-reel packaging options, ensuring long-term availability. This part is suitable for designs requiring no circuit modifications.

For Enhanced Performance (Improved Specifications): LMC6772AIM/NOPB offers superior input offset voltage performance (5mV versus 15mV) while maintaining all other electrical parameters. This part is designated as last-time-buy, indicating limited future availability. Selection of this part is appropriate for applications requiring tighter input offset specifications.

For Single-Element Applications: LMC7221BIM/NOPB provides parametric equivalence with reduced quiescent current (14µA versus 20µA) and is actively produced. This part is suitable only for applications requiring a single comparator element, as the LMC6772BIM/NOPB contains two elements.

For Cross-Manufacturer Alternatives (Rohm Semiconductor): The BU7233F-E2, BU7233SF-E2, and BU7253F-E2 are CMOS comparators offering superior propagation delay performance (1.8µs typical to 750ns typical) and lower supply voltage range (1.8V minimum). These parts are suitable for applications where the extended supply voltage range of the LMC6772BIM/NOPB is not required and faster switching performance is beneficial. All three Rohm parts are in active production status. The BU7233SF-E2 supports extended operating temperature to 105°C, suitable for high-temperature applications.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can LMC6772BIMX/NOPB be used as a direct replacement for LMC6772BIM/NOPB? A: Yes. Both parts are electrically identical dual-channel general-purpose comparators with open-drain output in 8-SOIC packaging. The primary difference is packaging format (tube versus cut tape/digi-reel) and product status (obsolete versus active). No circuit modifications are required.

Q: What is the key difference between LMC6772AIM/NOPB and LMC6772BIMX/NOPB? A: The LMC6772AIM/NOPB features superior input offset voltage specification of 5mV at 5V, compared to 15mV for the BIMX variant. All other electrical parameters are identical. The AIM variant is designated last-time-buy, indicating limited future availability.

Q: Can Rohm BU7233F-E2 or BU7253F-E2 replace the LMC6772BIM/NOPB in all applications? A: Rohm parts are functionally equivalent dual-channel comparators with open-drain output but operate at lower supply voltage ranges (1.8V to 5.5V versus 2.7V to 15V). These parts are suitable only for applications where the supply voltage does not exceed 5.5V. The BU7253F-E2 offers significantly faster propagation delay (750ns typical versus 10µs maximum), which may require circuit evaluation in timing-critical applications.

Q: What is the difference between BU7233F-E2 and BU7233SF-E2? A: Both parts are CMOS dual-channel comparators with identical electrical specifications. The BU7233SF-E2 supports extended operating temperature range to 105°C (versus 85°C for BU7233F-E2) and features combined CMOS and open-drain output type designation. Selection depends on temperature requirements of the application.

Q: Why is LMC7221BIM/NOPB listed as a parametric equivalent rather than a direct substitute? A: The LMC7221BIM/NOPB contains a single comparator element, whereas the LMC6772BIM/NOPB contains two elements. While electrical performance parameters are equivalent, the reduced element count makes this part suitable only for applications requiring single-channel comparison. Direct substitution is not possible without circuit redesign.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing processes and storage requirements.

Q: What packaging options are available for substitute parts? A: LMC6772BIMX/NOPB is available in cut tape and digi-reel packaging. LMC6772AIM/NOPB is available in tube packaging. Rohm parts (BU7233F-E2, BU7233SF-E2, BU7253F-E2) are available in tape and reel packaging. Package selection should align with production volume and assembly requirements.