LT6554IGN#PBF Equivalent & Substitute Parts

Part Overview

The LT6554IGN#PBF is a video amplifier buffer integrated circuit manufactured by Analog Devices Inc., configured as a 3-channel buffer in a 16-SSOP surface mount package. This device is classified as a Last Time Buy product, indicating discontinued production with limited inventory availability. The LT6554IGN#PBF operates across supply voltage ranges of 4.5V to 12V (single supply) or ±2.25V to 6V (dual supply), delivering high-speed buffering performance with a -3dB bandwidth of 650 MHz and slew rate of 2500V/µs. Identification of equivalent and substitute parts is necessary due to the Last Time Buy status, which restricts future procurement and requires alternative component selection for ongoing production requirements.

Substiute Parts

LT6554IGN#PBF

Analog Devices Inc.In Stock: 868LT6554IGN#PBF Datasheet

Current PartRFQ

LT6556IGN#PBF

Analog Devices Inc.In Stock: 1151LT6556IGN#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution analysis for the LT6554IGN#PBF is based on the following critical parameters that determine functional compatibility:

Supply Voltage Compatibility: Both the main part and substitute must operate within overlapping supply voltage ranges. The LT6554IGN#PBF operates at 4.5V to 12V (single supply) or ±2.25V to 6V (dual supply).

Bandwidth Performance: The -3dB bandwidth specification determines signal fidelity in video and high-frequency applications. The LT6554IGN#PBF operates at 650 MHz.

Number of Channels: The LT6554IGN#PBF contains 3 independent circuits, which is a fundamental architectural requirement for multi-channel buffering applications.

Surface Mount Packaging: Both parts utilize surface mount technology with 0.154" (3.90mm) width SSOP packages, ensuring PCB layout compatibility.

Manufacturer Compliance: Both parts are manufactured by Analog Devices Inc. and maintain ROHS3 compliance and MSL Level 1 ratings.

The LT6556IGN#PBF is identified as a substitute part based on manufacturer recommendation. This part maintains compatible supply voltage ranges, exceeds bandwidth performance specifications (750 MHz versus 650 MHz), and shares identical compliance certifications and moisture sensitivity ratings.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LT6554IGN#PBF carries Last Time Buy status, indicating end-of-life production. The LT6556IGN#PBF maintains Active product status, ensuring continued availability and long-term supply chain reliability.

Compliance and Certification: Both parts maintain identical ROHS3 compliance, REACH unaffected status, and EAR99 export classification. Both parts carry MSL Level 1 ratings, indicating unlimited shelf life under standard storage conditions.

Performance Specification: The LT6556IGN#PBF provides enhanced -3dB bandwidth performance at 750 MHz compared to the LT6554IGN#PBF at 650 MHz, while maintaining identical supply voltage operating ranges and channel count.

Supply Voltage Compatibility: Both parts operate within identical single supply (4.5V to 12V) and dual supply (±2.25V to 6V) ranges, ensuring direct compatibility in existing power distribution architectures.

Packaging and PCB Integration: Both parts utilize identical 0.154" (3.90mm) width SSOP surface mount packages, permitting direct footprint compatibility on printed circuit boards without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the LT6556IGN#PBF directly replace the LT6554IGN#PBF in existing designs?

A: The LT6556IGN#PBF shares identical supply voltage ranges, channel count, and package dimensions with the LT6554IGN#PBF. However, the LT6556IGN#PBF is classified as a video multiplexer with buffered output, while the LT6554IGN#PBF is a dedicated buffer amplifier. Functional compatibility depends on application-specific requirements beyond the provided electrical parameters.

Q: What is the primary reason for seeking substitute parts for the LT6554IGN#PBF?

A: The LT6554IGN#PBF carries Last Time Buy product status, indicating discontinued production. This status restricts future procurement availability and necessitates identification of alternative components for ongoing production requirements.

Q: Are there package compatibility concerns when substituting the LT6556IGN#PBF?

A: The LT6556IGN#PBF utilizes a 24-SSOP package compared to the LT6554IGN#PBF 16-SSOP package. While both packages maintain identical 0.154" (3.90mm) width specifications, the pin count difference (24 pins versus 16 pins) requires PCB footprint modification and pinout verification.

Q: Do both parts meet the same regulatory and compliance requirements?

A: Yes. Both the LT6554IGN#PBF and LT6556IGN#PBF maintain ROHS3 compliance, REACH unaffected status, EAR99 export classification, and MSL Level 1 moisture sensitivity ratings.

Q: What is the bandwidth performance difference between these parts?

A: The LT6556IGN#PBF provides -3dB bandwidth of 750 MHz, exceeding the LT6554IGN#PBF specification of 650 MHz. This represents a 100 MHz performance improvement suitable for higher-frequency signal applications.

Q: Are the supply voltage requirements identical between both parts?

A: Yes. Both parts operate within identical single supply ranges (4.5V to 12V) and dual supply ranges (±2.25V to 6V), ensuring compatibility with existing power distribution systems.