LT1223CS8 Equivalent & Substitute Parts

Part Overview

The LT1223CS8 is an active current feedback amplifier manufactured by Analog Devices Inc., designed for high-speed signal conditioning applications. This single-circuit operational amplifier operates across a wide supply voltage range and delivers high slew rate performance suitable for transimpedance and transconductive applications. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance, package compatibility, and operational specifications align with the original component's functional requirements.

Substiute Parts

LT1223CS8

Analog Devices Inc.In Stock: 2750LT1223CS8 Datasheet

Current PartRFQ

LT1223CS8#PBF

Analog Devices Inc.In Stock: 1258LT1223CS8#PBF Datasheet

DirectRFQ

THS3110ID

Texas InstrumentsIn Stock: 1091THS3110ID Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LT1223CS8 are classified into two categories based on substitution criteria:

Direct Packaging Substitute: LT1223CS8#PBF is an identical electrical specification variant of the LT1223CS8, differing only in packaging format (Tube packaging). This part maintains all electrical parameters, supply voltage ranges, bandwidth, slew rate, and thermal specifications. The substitution is valid for applications where tube packaging is acceptable in place of the standard packaging format.

Cross-Manufacturer Substitute: THS3110ID is a Texas Instruments current feedback amplifier that shares the same amplifier topology, package footprint (8-SOIC), and core bandwidth/slew rate specifications. Substitution eligibility is determined by the following aligned parameters:

• Amplifier Type: Current Feedback (identical)
• Number of Circuits: 1 (identical)
• Slew Rate: 1300 V/µs (identical)
• -3dB Bandwidth: 100 MHz (identical)
• Package / Case: 8-SOIC (0.154", 3.90mm Width) (identical)
• Mounting Type: Surface Mount (identical)
• RoHS3 Compliance: Yes (identical)
• MSL Rating: 1 (Unlimited) (identical)

Differences in input bias current, input offset voltage, supply current, output current capability, and operating temperature range exist between the LT1223CS8 and THS3110ID. These differences must be evaluated against specific application requirements before substitution.

Parameter Comparison

Engineering Selection Recommendations

LT1223CS8#PBF Selection: This part is a direct electrical equivalent to the LT1223CS8 and is suitable for applications where packaging format flexibility is required. Both parts maintain identical electrical specifications, thermal performance, and compliance certifications. Selection between these two Analog Devices variants depends solely on procurement and assembly requirements related to packaging format (Tube vs. standard packaging).

THS3110ID Selection: The Texas Instruments THS3110ID is a functionally equivalent current feedback amplifier suitable for substitution in applications where the following conditions are met:

• The application operates within the THS3110ID supply voltage range of 10 V to 30 V (narrower than the LT1223CS8 range of 8 V to 36 V)
• The application can accommodate higher input bias current (1.5 µA vs. 1 µA) and input offset voltage (3 mV vs. 1 mV)
• The application benefits from higher output current capability (260 mA vs. 60 mA)
• The application operates within the THS3110ID temperature range of -40°C to 85°C (wider than the LT1223CS8 range of 0°C to 70°C)
• Lower supply current consumption (4.8 mA vs. 6 mA) is advantageous

Both substitute parts maintain Active product status and full RoHS3 compliance with unlimited moisture sensitivity rating, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can LT1223CS8#PBF be used as a direct replacement for LT1223CS8?

A: Yes. LT1223CS8#PBF is electrically and functionally identical to the LT1223CS8. The only difference is the packaging format (Tube packaging). Both parts share identical electrical specifications, operating ranges, and performance characteristics. Selection depends on packaging requirements for your assembly process.

Q: What are the key differences between LT1223CS8 and THS3110ID?

A: Both parts are current feedback amplifiers with identical slew rate (1300 V/µs) and bandwidth (100 MHz) in the same 8-SOIC package. Key differences include: THS3110ID has a narrower supply voltage range (10 V to 30 V vs. 8 V to 36 V), higher input bias current (1.5 µA vs. 1 µA), higher input offset voltage (3 mV vs. 1 mV), lower supply current (4.8 mA vs. 6 mA), and significantly higher output current capability (260 mA vs. 60 mA). THS3110ID also supports a wider operating temperature range (-40°C to 85°C vs. 0°C to 70°C).

Q: Is the THS3110ID suitable for my application if I operate at 8 V supply voltage?

A: No. The THS3110ID minimum supply voltage is 10 V. If your application requires operation at 8 V, the LT1223CS8 or LT1223CS8#PBF must be used, as they support supply voltages down to 8 V.

Q: Can I use THS3110ID in an application requiring maximum supply voltage of 36 V?

A: No. The THS3110ID maximum supply voltage is 30 V. If your application requires operation at voltages above 30 V up to 36 V, the LT1223CS8 or LT1223CS8#PBF must be used.

Q: Are all three parts RoHS3 compliant?

A: Yes. LT1223CS8, LT1223CS8#PBF, and THS3110ID are all RoHS3 compliant with MSL rating of 1 (Unlimited). All three parts are suitable for applications with RoHS compliance requirements.

Q: What is the difference in output current capability between these parts?

A: The LT1223CS8 and LT1223CS8#PBF provide 60 mA output current per channel. The THS3110ID provides 260 mA output current per channel, offering significantly higher drive capability. Applications requiring higher output current should consider the THS3110ID.

Q: Do all three parts have the same package footprint?

A: Yes. All three parts use the 8-SOIC package with 0.154" width (3.90mm). The package footprint is identical, allowing direct PCB layout compatibility. Packaging format (Tube vs. standard) does not affect the component footprint.

Q: What is the operating temperature range for each part?

A: LT1223CS8 and LT1223CS8#PBF operate from 0°C to 70°C. THS3110ID operates from -40°C to 85°C, providing a wider temperature range suitable for extended temperature applications.