LT1358CS8 Equivalent & Substitute Parts

Part Overview

The LT1358CS8 is an active voltage feedback amplifier integrated circuit manufactured by Analog Devices Inc., containing two independent circuits in an 8-SOIC surface mount package. This device is classified as a linear amplifier and maintains Active product status. The LT1358CS8 is designed for applications requiring dual-channel voltage feedback amplification with moderate bandwidth and slew rate characteristics. Substitute parts are identified when inventory constraints, packaging preferences, or specific application requirements necessitate alternative component selection while maintaining functional compatibility within defined electrical and mechanical parameters.

Substiute Parts

LT1358CS8

Analog Devices Inc.In Stock: 12193LT1358CS8 Datasheet

Current PartRFQ

LT1358CS8#PBF

Analog Devices Inc.In Stock: 2043LT1358CS8#PBF Datasheet

DirectRFQ

ADA4898-2YRDZ

Analog Devices Inc.In Stock: 4359ADA4898-2YRDZ Datasheet

SimilarRFQ

ADA4898-2YRDZ-R7

Analog Devices Inc.In Stock: 3214ADA4898-2YRDZ-R7 Datasheet

SimilarRFQ

OPA2277MDTEP

Texas InstrumentsIn Stock: 692067OPA2277MDTEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LT1358CS8 are categorized based on electrical parameter compatibility and mechanical form factor alignment. The substitution logic is structured as follows:

Direct Substitutes (Identical Electrical and Mechanical Specifications): Parts that maintain all key electrical parameters—slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and supply voltage range—while differing only in packaging format (tube versus cut tape) are classified as direct substitutes. These parts preserve functional equivalence across all application scenarios.

Similar Substitutes (Compatible Electrical Parameters with Specified Deviations): Parts that share the same amplifier type (voltage feedback), circuit count (2), and package form factor (8-SOIC surface mount) but exhibit measurable differences in slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, supply voltage range, or operating temperature range are classified as similar substitutes. Compatibility is determined by whether the substitute part's electrical characteristics remain within acceptable operational bounds for the intended application.

Key Parameters Determining Substitution Eligibility:

• Amplifier Type: Voltage Feedback
• Number of Circuits: 2
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Parameter Comparison

Engineering Selection Recommendations

LT1358CS8#PBF (Direct Substitute): The LT1358CS8#PBF is a direct electrical equivalent to the LT1358CS8, differing only in packaging format (tube packaging versus standard packaging). This part maintains identical electrical specifications across all measured parameters and is suitable for applications where tube packaging is preferred for automated assembly processes. Both parts carry ROHS3 compliance and Active product status. Selection between these two parts is determined by supply chain availability and packaging requirements rather than functional considerations.

ADA4898-2YRDZ and ADA4898-2YRDZ-R7 (Similar Substitutes): The ADA4898-2YRDZ and ADA4898-2YRDZ-R7 are similar substitutes offering enhanced performance characteristics in specific parameters. These parts provide doubled gain bandwidth product (50 MHz versus 25 MHz) and significantly reduced input offset voltage (20 µV versus 200 µV). However, they exhibit reduced slew rate (55 V/µs versus 600 V/µs) and increased supply current per channel (7.9 mA versus 2 mA). The minimum supply voltage requirement increases to 9 V. These parts feature an exposed pad variant of the 8-SOIC package and carry ROHS3 compliance with Active product status. The ADA4898-2YRDZ-R7 differs from ADA4898-2YRDZ only in packaging format (cut tape and Digi-Reel versus tube). Selection of these parts is appropriate when lower input offset voltage and higher bandwidth are required, provided the application can accommodate the reduced slew rate and increased power consumption.

OPA2277MDTEP (Similar Substitute): The OPA2277MDTEP is a general-purpose amplifier offering the lowest power consumption (0.79 mA per channel) and widest operating temperature range (-55°C to 125°C) among the listed substitutes. This part exhibits significantly reduced slew rate (0.8 V/µs) and gain bandwidth product (1 MHz), making it unsuitable for high-speed applications. The OPA2277MDTEP maintains ROHS3 compliance and Active product status. Selection of this part is appropriate for low-power, low-frequency applications where extended temperature range and minimal power consumption are critical requirements.

Compliance and Certification Basis: All listed substitute parts maintain ROHS3 compliance and Active product status, ensuring regulatory alignment and ongoing manufacturer support. Selection among substitutes should be based on specific application requirements regarding slew rate, bandwidth, power consumption, supply voltage range, and operating temperature range, with consideration for packaging format preferences and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the LT1358CS8#PBF be used as a direct replacement for the LT1358CS8?

A: Yes. The LT1358CS8#PBF is electrically identical to the LT1358CS8 across all specified parameters. The difference is packaging format: LT1358CS8#PBF uses tube packaging while the LT1358CS8 uses standard packaging. Both parts are suitable for identical applications.

Q: What are the primary differences between the LT1358CS8 and the ADA4898-2YRDZ?

A: The ADA4898-2YRDZ provides higher gain bandwidth product (50 MHz versus 25 MHz) and lower input offset voltage (20 µV versus 200 µV). However, it has reduced slew rate (55 V/µs versus 600 V/µs), higher supply current per channel (7.9 mA versus 2 mA), and requires a minimum supply voltage of 9 V instead of 5 V. The ADA4898-2YRDZ features an exposed pad variant of the 8-SOIC package.

Q: Is the OPA2277MDTEP suitable for high-speed applications?

A: No. The OPA2277MDTEP has a slew rate of 0.8 V/µs and gain bandwidth product of 1 MHz, making it unsuitable for high-speed signal processing. This part is designed for low-frequency, low-power applications. The LT1358CS8 with its 600 V/µs slew rate and 25 MHz bandwidth is more appropriate for higher-speed requirements.

Q: What is the significance of the exposed pad in the ADA4898-2YRDZ package?

A: The exposed pad (EP) variant of the 8-SOIC package provides improved thermal dissipation compared to standard 8-SOIC packages. This allows better heat transfer from the die to the PCB, reducing junction temperature during operation. The exposed pad is beneficial in applications with higher power dissipation or thermal constraints.

Q: Can I use the OPA2277MDTEP in place of the LT1358CS8 in all applications?

A: No. The OPA2277MDTEP has significantly different electrical characteristics, including much lower slew rate (0.8 V/µs versus 600 V/µs) and lower gain bandwidth product (1 MHz versus 25 MHz). It is suitable only for low-frequency applications where these reduced specifications are acceptable. High-speed or high-bandwidth applications require the LT1358CS8 or higher-performance alternatives such as the ADA4898-2YRDZ.

Q: What is the difference between ADA4898-2YRDZ and ADA4898-2YRDZ-R7?

A: These parts are electrically identical. The difference is packaging format: ADA4898-2YRDZ uses tube packaging, while ADA4898-2YRDZ-R7 uses cut tape and Digi-Reel packaging. Selection between these two is based on assembly process requirements and inventory preferences.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—LT1358CS8#PBF, ADA4898-2YRDZ, ADA4898-2YRDZ-R7, and OPA2277MDTEP—are ROHS3 compliant and maintain Active product status.

Q: What is the moisture sensitivity level difference between the LT1358CS8 and other substitutes?

A: The LT1358CS8 and LT1358CS8#PBF have Moisture Sensitivity Level 1 (Unlimited), meaning they have no moisture sensitivity restrictions. The ADA4898-2YRDZ, ADA4898-2YRDZ-R7, and OPA2277MDTEP have Moisture Sensitivity Level 3 (168 Hours), requiring controlled storage and handling conditions to prevent moisture absorption during the 168-hour window before soldering.

Q: Which substitute part has the lowest power consumption?

A: The OPA2277MDTEP has the lowest supply current per channel at 0.79 mA, compared to 2 mA for the LT1358CS8 and 7.9 mA for the ADA4898-2YRDZ variants. However, the OPA2277MDTEP is limited to low-frequency applications due to its 1 MHz gain bandwidth product.

Q: Can the LT1358CS8 operate with a 9 V supply?

A: Yes. The LT1358CS8 has a minimum supply voltage of 5 V and maximum of 30 V, so 9 V operation is within specification. However, the ADA4898-2YRDZ requires a minimum of 9 V, making it unsuitable for applications requiring 5 V to 8 V supply operation.