LT1226CS8#PBF Equivalent & Substitute Parts

Part Overview

The LT1226CS8#PBF is a general purpose operational amplifier manufactured by Analog Devices Inc., designed for linear amplification applications. This single-circuit, 8-SO surface mount device operates across a wide supply voltage range of 5V to 30V and is rated for operating temperatures from 0°C to 70°C. The device is currently in active production status with 2300 units available in inventory.

Substitute parts are identified when equivalent functional performance can be achieved within the constraints of the application's electrical and mechanical requirements. The LT1226CS8#PBF may require substitution due to inventory availability, supply chain considerations, or specific application parameter requirements.

Substiute Parts

LT1226CS8#PBF

Analog Devices Inc.In Stock: 2346LT1226CS8#PBF Datasheet

Current PartRFQ

INA154UA

Texas InstrumentsIn Stock: 2024INA154UA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT1226CS8#PBF is evaluated based on the following critical parameters that define functional equivalence:

Package Compatibility: Both the main part and substitute must utilize the 8-SOIC surface mount package with 0.154" (3.90mm) width to ensure mechanical and electrical compatibility with existing PCB layouts.

Supply Voltage Range: The substitute must operate within or encompass the 5V to 30V supply voltage specification of the main part. The substitute's supply range must not impose more restrictive constraints on the application.

Amplifier Functionality: The substitute must be classified as an operational amplifier within the Linear, Amplifiers category, capable of performing single-circuit amplification.

Compliance and Certifications: Both parts must maintain ROHS3 compliance and REACH unaffected status to satisfy regulatory requirements for equivalent substitution.

Mounting and Delivery: Surface mount technology and tube packaging format must be maintained for manufacturing process compatibility.

The INA154UA from Texas Instruments meets the package, category, and compliance requirements for substitution consideration, though it operates as a differential amplifier rather than a general purpose amplifier, and exhibits different electrical performance characteristics within its specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the LT1226CS8#PBF and INA154UA maintain active production status and full ROHS3 compliance with REACH unaffected designation, satisfying regulatory requirements for industrial and commercial applications.

Mechanical Compatibility: Both devices utilize identical 8-SOIC surface mount packaging, enabling direct PCB layout compatibility without redesign.

Supply Voltage Consideration: The INA154UA requires a minimum supply voltage of 8V, compared to the LT1226CS8#PBF minimum of 5V. Applications operating at supply voltages below 8V cannot utilize the INA154UA as a substitute.

Moisture Sensitivity: The LT1226CS8#PBF carries MSL Level 1 (unlimited moisture sensitivity), while the INA154UA carries MSL Level 3 (168 hours). Applications with extended storage or high-humidity environments may require additional moisture control measures when using the INA154UA.

Functional Architecture: The LT1226CS8#PBF is configured as a general purpose amplifier, while the INA154UA is configured as a differential amplifier. Circuit topology and application requirements determine functional interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the INA154UA directly replace the LT1226CS8#PBF in all applications?

A: Direct replacement is limited by functional architecture and supply voltage requirements. The INA154UA is a differential amplifier, while the LT1226CS8#PBF is a general purpose amplifier. Additionally, the INA154UA requires a minimum supply voltage of 8V, whereas the LT1226CS8#PBF operates from 5V. Applications must be evaluated for compatibility with these constraints.

Q: Are the physical packages identical?

A: Yes. Both devices utilize the 8-SOIC package with 0.154" (3.90mm) width, enabling identical PCB footprints and mounting procedures.

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

A: The LT1226CS8#PBF provides a slew rate of 400V/µs and gain bandwidth product of 1 GHz, while the INA154UA provides a slew rate of 14V/µs and -3dB bandwidth of 3.1 MHz. The LT1226CS8#PBF draws 7mA supply current; the INA154UA draws 2.4mA. The INA154UA exhibits lower input offset voltage (100µV versus 300µV).

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the LT1226CS8#PBF and INA154UA are ROHS3 compliant and REACH unaffected, satisfying current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of the different MSL ratings?

A: The LT1226CS8#PBF carries MSL Level 1, indicating unlimited moisture sensitivity tolerance. The INA154UA carries MSL Level 3, requiring moisture control for 168 hours after packaging. Applications with extended storage periods or high-humidity manufacturing environments must account for this difference in handling and storage protocols.

Q: Can these parts be used interchangeably in high-frequency applications?

A: The LT1226CS8#PBF is specified for 1 GHz gain bandwidth product, while the INA154UA is specified for 3.1 MHz -3dB bandwidth. High-frequency applications requiring bandwidth above 3.1 MHz cannot utilize the INA154UA as a substitute.