LT6554IGN#TRPBF Equivalent & Substitute Parts

Part Overview

The LT6554IGN#TRPBF is a video amplifier buffer integrated circuit manufactured by Analog Devices Inc., designed for high-speed buffering applications. This device contains three independent buffer circuits in a 16-SSOP surface mount package. The part is designated as Last Time Buy, indicating that it is no longer in active production. Due to this product status, identification of functionally compatible alternatives is necessary for design continuity and long-term supply chain planning.

Substiute Parts

LT6554IGN#TRPBF

Analog Devices Inc.In Stock: 774LT6554IGN#TRPBF Datasheet

Current PartRFQ

LT6556IGN#TRPBF

Analog Devices Inc.In Stock: 1070LT6556IGN#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT6554IGN#TRPBF is determined by the following critical parameters:

Electrical Compatibility Parameters:

• Supply voltage range: 4.5V ~ 12V (single) or ±2.25V ~ 6V (dual)
• Bandwidth performance: minimum 650 MHz -3dB bandwidth
• Number of independent circuits: 3 channels
• Output current capability: minimum 70 mA per channel

Physical Compatibility Parameters:

• Surface mount technology
• SSOP package family with 0.154" (3.90mm) width
• Tape & Reel (TR) packaging format

Regulatory & Compliance Parameters:

• ROHS3 compliance
• REACH unaffected status
• MSL Level 1 (Unlimited moisture sensitivity)

The substitute part LT6556IGN#TRPBF shares the same manufacturer (Analog Devices Inc.), supply voltage specifications, bandwidth performance, number of channels, and regulatory compliance status. Both devices are housed in SSOP packages with identical width specifications and are available in Tape & Reel format.

Parameter Comparison

Engineering Selection Recommendations

The LT6556IGN#TRPBF is identified as a substitute for the LT6554IGN#TRPBF based on the following engineering criteria:

Supply Voltage Compatibility: Both devices operate across identical single and dual supply voltage ranges (4.5V ~ 12V and ±2.25V ~ 6V), ensuring direct compatibility with existing power distribution networks.

Bandwidth Performance: The LT6556IGN#TRPBF provides 750 MHz -3dB bandwidth, which exceeds the 650 MHz specification of the LT6554IGN#TRPBF. This represents improved performance headroom for high-frequency signal processing.

Channel Configuration: Both devices provide three independent circuits, maintaining functional equivalence for multi-channel applications.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements without modification to design or procurement processes.

Product Status Advantage: The LT6556IGN#TRPBF is designated as Active production status, providing long-term supply availability and design continuity compared to the Last Time Buy status of the LT6554IGN#TRPBF.

Package Consideration: The LT6556IGN#TRPBF uses a 24-SSOP package compared to the 16-SSOP of the LT6554IGN#TRPBF. Both packages maintain the same 0.154" (3.90mm) width specification and are available in Tape & Reel format. PCB layout modifications are required to accommodate the increased pin count.

Frequently Asked Questions (FAQ)

Q: Can the LT6556IGN#TRPBF directly replace the LT6554IGN#TRPBF without PCB modifications?

A: No. While both devices share identical supply voltage ranges, bandwidth performance, and channel count, the LT6556IGN#TRPBF uses a 24-SSOP package versus the 16-SSOP package of the LT6554IGN#TRPBF. PCB layout modifications are required to accommodate the different pin configurations and increased pin count.

Q: What is the primary reason for seeking a substitute for the LT6554IGN#TRPBF?

A: The LT6554IGN#TRPBF is designated as Last Time Buy, indicating end-of-life status and cessation of production. The LT6556IGN#TRPBF is in Active production status, ensuring long-term supply availability and design continuity.

Q: Are the supply voltage specifications identical between these two parts?

A: Yes. Both the LT6554IGN#TRPBF and LT6556IGN#TRPBF operate across identical supply voltage ranges: 4.5V ~ 12V for single supply and ±2.25V ~ 6V for dual supply configurations.

Q: Does the LT6556IGN#TRPBF provide equivalent or improved bandwidth performance?

A: The LT6556IGN#TRPBF provides improved bandwidth performance at 750 MHz -3dB bandwidth compared to the 650 MHz specification of the LT6554IGN#TRPBF, offering additional performance margin for high-frequency applications.

Q: Are both parts available in Tape & Reel packaging?

A: Yes. Both the LT6554IGN#TRPBF and LT6556IGN#TRPBF are available in Tape & Reel (TR) packaging format with identical package width specifications of 0.154" (3.90mm).

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both devices are ROHS3 compliant and REACH unaffected, satisfying identical environmental and regulatory requirements.

Q: What is the key difference in package configuration between these parts?

A: The LT6554IGN#TRPBF uses a 16-SSOP package, while the LT6556IGN#TRPBF uses a 24-SSOP package. The increased pin count in the 24-SSOP requires PCB layout redesign for proper implementation.