LMH6654MF Equivalent & Substitute Parts

Part Overview

The LMH6654MF is a voltage feedback operational amplifier manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This device functions as a single-circuit linear amplifier with high-speed characteristics suitable for precision signal conditioning applications. The LMH6654MF is designated as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity and procurement availability for new production builds and field replacements.

Substiute Parts

LMH6654MF

Texas InstrumentsIn Stock: 1667LMH6654MF Datasheet

Current PartRFQ

LMH6654MF/NOPB

Texas InstrumentsIn Stock: 2310LMH6654MF/NOPB Datasheet

DirectRFQ

LMH6654MFX/NOPB

Texas InstrumentsIn Stock: 1638LMH6654MFX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMH6654MF is determined by electrical and mechanical parameter equivalence within the voltage feedback operational amplifier category. The critical parameters governing substitution are:

Electrical Equivalence Criteria:

• Amplifier Type: Voltage Feedback
• Number of Circuits: 1
• Slew Rate: 200 V/µs
• Gain Bandwidth Product: 260 MHz
• Current - Input Bias: 5 µA
• Voltage - Input Offset: 1 mV
• Current - Supply: 4.5 mA
• Current - Output / Channel: 120 mA
• Voltage - Supply Span: 4.5 V to 12 V
• Operating Temperature Range: -40°C to 85°C

Mechanical Equivalence Criteria:

• Package / Case: SC-74A, SOT-753
• Mounting Type: Surface Mount
• Supplier Device Package: SOT-23-5

The substitute parts identified are direct variants of the LMH6654 base product number, differing only in packaging configuration (Cut Tape versus Tape & Reel) and product status designation. All identified substitutes maintain identical electrical specifications and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

LMH6654MF/NOPB is designated as a direct manufacturer substitute with Active product status. This part maintains identical electrical and mechanical specifications to the main part number LMH6654MF. The primary distinction is packaging configuration: LMH6654MF/NOPB is supplied in Tape & Reel format, whereas the main part is available in Cut Tape and Digi-Reel configurations. Both parts carry ROHS3 compliance and identical regulatory certifications (REACH Unaffected, ECCN EAR99).

LMH6654MFX/NOPB is the manufacturer-recommended substitute, also designated as Active product status. This part is electrically and mechanically identical to both the main part and LMH6654MF/NOPB. The LMH6654MFX/NOPB variant is supplied in Tape & Reel packaging and carries the same compliance certifications. Current inventory for LMH6654MFX/NOPB is 1566 pieces.

For new production designs and field replacements where the LMH6654MF (Last Time Buy status) is no longer available, either LMH6654MF/NOPB or LMH6654MFX/NOPB provides direct functional and mechanical compatibility. Selection between these two active alternatives depends on packaging requirements and procurement logistics.

Frequently Asked Questions (FAQ)

Q: Can LMH6654MF/NOPB be used as a direct replacement for LMH6654MF?

A: Yes. LMH6654MF/NOPB is electrically and mechanically identical to LMH6654MF. The difference is packaging configuration: LMH6654MF/NOPB is supplied in Tape & Reel format. Both parts are housed in SOT-23-5 packages and share identical electrical specifications, operating temperature range, and compliance certifications.

Q: What is the difference between LMH6654MF/NOPB and LMH6654MFX/NOPB?

A: Both parts are electrically and mechanically equivalent. The primary difference is product status: LMH6654MF/NOPB is a direct manufacturer part number, while LMH6654MFX/NOPB is the manufacturer-recommended variant. Both are Active status and supplied in Tape & Reel packaging. Selection between them depends on availability and procurement requirements.

Q: Why is the main part number LMH6654MF designated as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this specific part number variant. Customers requiring this device should transition to active alternatives: LMH6654MF/NOPB or LMH6654MFX/NOPB.

Q: Are all three part numbers compatible with the same PCB layout?

A: Yes. All three part numbers use identical package specifications: SC-74A, SOT-753 (SOT-23-5). Pin configuration, footprint, and mechanical dimensions are identical, enabling direct substitution on the same printed circuit board assembly.

Q: Do the substitute parts meet the same regulatory requirements as the original LMH6654MF?

A: Yes. LMH6654MF/NOPB and LMH6654MFX/NOPB are both ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99. Moisture Sensitivity Level is 1 (Unlimited) for all three variants.

Q: What is the minimum supply voltage for these operational amplifiers?

A: The minimum supply voltage span is 4.5 V. The maximum supply voltage span is 12 V. These devices operate within this voltage range across the full operating temperature range of -40°C to 85°C.