LT1191CS8#PBF Equivalent & Substitute Parts

Part Overview

The LT1191CS8#PBF is a general-purpose video amplifier integrated circuit manufactured by Analog Devices Inc. in an 8-SOIC surface mount package. This device is classified as a Last Time Buy product, indicating that it is no longer in active production and existing inventory represents the final availability from the manufacturer. The LT1191CS8#PBF delivers a slew rate of 450V/µs with a maximum output current of 50 mA per channel and operates across a supply voltage range of 4.75V to 16V (single supply) or ±2.38V to ±8V (dual supply). Identifying equivalent and substitute parts is necessary due to the Last Time Buy status, which restricts long-term procurement availability and necessitates transition planning to alternative components that maintain functional compatibility within target applications.

Substiute Parts

LT1191CS8#PBF

Analog Devices Inc.In Stock: 5281LT1191CS8#PBF Datasheet

Current PartRFQ

LT1363CS8#PBF

Analog Devices Inc.In Stock: 5189LT1363CS8#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT1191CS8#PBF is determined by strict alignment of the following critical parameters:

Package Compatibility: The substitute part must utilize the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct printed circuit board compatibility without layout modifications.

Electrical Performance Envelope: The substitute must operate within the supply voltage specifications of the original part (4.75V to 16V single supply, or ±2.38V to ±8V dual supply) and maintain output current capability of at least 50 mA per channel to support existing load requirements.

Circuit Configuration: The substitute must contain a single amplifier circuit (1 circuit) to match the functional architecture of the LT1191CS8#PBF.

Compliance and Regulatory Status: The substitute must maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating to preserve manufacturing and storage compatibility.

Manufacturer Continuity: Preference is given to parts from Analog Devices Inc. to maintain supply chain consistency and technical support alignment.

The LT1363CS8#PBF meets all substitution criteria and is classified as an MFR Recommended substitute by the manufacturer.

Parameter Comparison

Engineering Selection Recommendations

The LT1363CS8#PBF is the manufacturer-recommended substitute for the LT1191CS8#PBF and is suitable for direct replacement in applications where the LT1191CS8#PBF is currently deployed.

Product Status Advantage: The LT1363CS8#PBF carries an Active product status, ensuring continued availability and long-term supply chain stability, in contrast to the Last Time Buy designation of the LT1191CS8#PBF.

Compliance Alignment: Both parts maintain identical ROHS3 compliance and MSL Level 1 ratings, preserving manufacturing process compatibility and storage requirements.

Electrical Performance Enhancement: The LT1363CS8#PBF provides superior slew rate performance (1000V/µs versus 450V/µs) and increased output current capability (60 mA versus 50 mA), delivering enhanced dynamic response characteristics. Supply current consumption is reduced to 6.3 mA, improving power efficiency.

Supply Voltage Compatibility: The LT1363CS8#PBF operates across an expanded supply voltage range (5V to 36V), which encompasses the original part's operating envelope and provides additional design flexibility for future applications.

Package and Pinout Compatibility: Identical 8-SOIC packaging ensures direct board-level substitution without circuit layout modifications or component repositioning.

Frequently Asked Questions (FAQ)

Q: Can the LT1363CS8#PBF be used as a direct replacement for the LT1191CS8#PBF without circuit modifications?

A: Yes. Both parts share identical 8-SOIC package geometry, pinout configuration, and single-circuit architecture. The LT1363CS8#PBF is the manufacturer-recommended substitute and requires no circuit board layout changes.

Q: What are the key electrical differences between these two parts?

A: The LT1363CS8#PBF offers improved slew rate (1000V/µs versus 450V/µs), higher output current capability (60 mA versus 50 mA), lower supply current consumption (6.3 mA versus 32 mA), and an expanded supply voltage range (5V to 36V versus 4.75V to 16V single supply). These enhancements provide superior performance without compromising compatibility.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both the LT1191CS8#PBF and LT1363CS8#PBF maintain identical ROHS3 compliance status, MSL Level 1 moisture sensitivity rating, REACH Unaffected status, and ECCN/HTSUS classifications.

Q: Why is the LT1191CS8#PBF designated as Last Time Buy?

A: Last Time Buy status indicates that the manufacturer has discontinued active production of this part. Existing inventory represents the final availability. The LT1363CS8#PBF is the recommended transition path for new designs and ongoing production requirements.

Q: What is the supply voltage compatibility range for substitution?

A: The LT1363CS8#PBF operates from 5V to 36V, which fully encompasses the LT1191CS8#PBF operating range of 4.75V to 16V (single supply) or ±2.38V to ±8V (dual supply). Applications using either supply configuration can transition to the LT1363CS8#PBF without voltage adjustment.

Q: Does the LT1363CS8#PBF require different printed circuit board layout considerations?

A: No. The 8-SOIC package dimensions (0.154" width, 3.90mm) are identical for both parts. Existing PCB layouts designed for the LT1191CS8#PBF accommodate the LT1363CS8#PBF without modification.

Q: Is the LT1363CS8#PBF available in the same packaging format (Tube)?

A: Yes. The LT1363CS8#PBF is supplied in Tube packaging, matching the delivery format of the LT1191CS8#PBF.