LT1230CS#TRM Equivalent & Substitute Parts

Part Overview

The LT1230CS#TRM is a Current Feedback Amplifier integrated circuit manufactured by Analog Devices Inc., containing 4 independent amplifier circuits in a 14-SOIC surface mount package. This device is classified as Last Time Buy, indicating discontinued production with limited remaining inventory. Identification of equivalent and substitute parts is necessary to ensure design continuity and long-term component availability for applications requiring current feedback amplifier functionality.

Substiute Parts

LT1230CS#TRM

Analog Devices Inc.In Stock: 902LT1230CS#TRM Datasheet

Current PartRFQ

LT1365CS#TRPBF

Analog Devices Inc.In Stock: 2319LT1365CS#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT1230CS#TRM is determined by the following critical parameters:

Functional Requirements:

• Number of circuits: 4 independent amplifier channels
• Mounting type: Surface mount technology
• Package width: 0.154" (3.90mm) standard SOIC width

Electrical Performance Boundaries:

• Supply voltage range compatibility: Minimum 4V to maximum 30V
• Operating temperature range: 0°C to 70°C
• Output current capability per channel: Minimum 60 mA

Compliance & Regulatory:

• REACH Status: REACH Unaffected
• ECCN Classification: EAR99
• HTSUS Code: 8542.33.0001

The LT1365CS#TRPBF qualifies as a substitute based on these parameters. While the LT1365CS#TRPBF employs voltage feedback architecture rather than current feedback, it maintains functional equivalence through compatible supply voltage ranges, operating temperature specifications, and surface mount packaging. The substitute part provides enhanced performance characteristics including higher slew rate and improved input offset voltage specifications.

Parameter Comparison

Engineering Selection Recommendations

LT1230CS#TRM Status Considerations: The LT1230CS#TRM carries Last Time Buy status, indicating production discontinuation. Existing inventory of 882 pieces is available; however, future procurement is not guaranteed. Applications currently utilizing this part number should evaluate long-term supply requirements.

LT1365CS#TRPBF as Active Alternative: The LT1365CS#TRPBF maintains Active product status with 2290 pieces in current inventory, ensuring sustained availability. This part is RoHS3 Compliant and carries Moisture Sensitivity Level (MSL) 1 classification, indicating unlimited shelf life under standard storage conditions.

Regulatory & Compliance Alignment: Both parts share identical REACH Status (REACH Unaffected) and ECCN classification (EAR99), maintaining consistent regulatory compliance across substitution. HTSUS tariff classification remains unchanged.

Package Consideration: The substitute part utilizes a 16-SOIC package compared to the 14-SOIC main part. Both maintain 0.154" (3.90mm) width standard for SOIC packages. PCB layout modifications are required to accommodate the additional 2 pins in the 16-pin configuration.

Frequently Asked Questions (FAQ)

Q: Can the LT1365CS#TRPBF directly replace the LT1230CS#TRM without circuit modifications?

A: Direct pin-for-pin replacement is not possible due to package differences (14-SOIC versus 16-SOIC). PCB layout redesign is required. Additionally, the LT1365CS#TRPBF employs voltage feedback architecture while the LT1230CS#TRM uses current feedback architecture, necessitating circuit topology evaluation for specific applications.

Q: What is the significance of the Last Time Buy status on the LT1230CS#TRM?

A: Last Time Buy designation indicates that Analog Devices Inc. has discontinued production of this part number. Current inventory of 882 pieces represents the final available stock. No future manufacturing runs are planned. Applications requiring this part should secure adequate quantities for long-term needs or transition to alternative components.

Q: Are there electrical performance differences that affect circuit design?

A: Yes. The LT1365CS#TRPBF provides superior slew rate (1000 V/µs versus 700 V/µs), lower input bias current (600 nA versus 10 µA), and lower input offset voltage (500 µV versus 3 mV). However, output current per channel is reduced (60 mA versus 125 mA). Minimum supply voltage increases from 4V to 5V. Circuit design must account for these parameter variations.

Q: What does the packaging designation "Tape & Reel (TR)" mean for the LT1365CS#TRPBF?

A: Tape & Reel packaging indicates the component is supplied on continuous carrier tape wound on a reel, suitable for automated assembly equipment. This differs from the LT1230CS#TRM packaging designation, which does not specify tape & reel format. Verify compatibility with your assembly process requirements.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the LT1230CS#TRM and LT1365CS#TRPBF operate across 0°C to 70°C. Operating temperature range compatibility is maintained across substitution.

Q: What is the practical impact of the 16-pin versus 14-pin package difference?

A: The 16-SOIC package contains two additional pins compared to the 14-SOIC package. PCB footprint, trace routing, and component placement must be redesigned to accommodate the larger package. Verify that board space and layout constraints permit the 16-pin configuration before committing to substitution.

Q: How do the supply voltage ranges compare between these parts?

A: The LT1230CS#TRM operates from 4V to 30V. The LT1365CS#TRPBF operates from 5V to 36V. Applications operating at 4V supply voltage cannot use the LT1365CS#TRPBF substitute. Verify your circuit's minimum supply voltage requirement before selecting the substitute part.