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LT1355CS8 Equivalent & Substitute Parts
Part Overview
The LT1355CS8 is a 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 LT1355CS8 operates across a supply voltage range of 5V to 30V and is designed for general-purpose voltage feedback amplification applications. Equivalent and substitute parts are identified to address inventory availability, packaging preferences, or specific application requirements while maintaining functional compatibility within defined electrical and mechanical parameters.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | Voltage Feedback | — |
| Number of Circuits | 2 | — |
| Slew Rate | 400 | V/µs |
| Gain Bandwidth Product | 12 | MHz |
| Current - Input Bias | 80 | nA |
| Voltage - Input Offset | 300 | µV |
| Current - Supply (per Channel) | 1 | mA |
| Current - Output / Channel | 30 | mA |
| Voltage - Supply Span (Min) | 5 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature Range | 0 to 70 | °C |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LT1355CS8 are grouped based on the following substitution criteria:
Direct Equivalent (Packaging Variant): The LT1355CS8#PBF is an identical electrical device with the same base product number (LT1355) and all electrical specifications. The substitution is valid based on matching amplifier type (Voltage Feedback), circuit count (2), slew rate (400V/µs), gain bandwidth product (12 MHz), input bias current (80 nA), input offset voltage (300 µV), supply current (1mA per channel), output current (30 mA), supply voltage range (5V to 30V), operating temperature (0°C to 70°C), and package form factor (8-SOIC). The only difference is packaging format (Tube versus standard).
Similar Substitutes (Functional Alternatives): Similar substitute parts maintain the 8-SOIC package form factor and surface mount mounting type but differ in amplifier topology, electrical performance characteristics, or operating temperature ranges. These parts are suitable for applications where the specific electrical performance of the LT1355CS8 is not critical, or where enhanced performance characteristics are acceptable. Substitution validity depends on application-specific requirements for slew rate, gain bandwidth product, input bias current, supply voltage range, and operating temperature.
The following parameters determine substitution eligibility:
- Package / Case: 8-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Number of Circuits: 2
- RoHS Status: ROHS3 Compliant
- Product Status: Active
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (µV) | Supply Current (mA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LT1355CS8 | Analog Devices Inc. | Voltage Feedback | 400 | 12 | 80 | 300 | 1 | 30 | 5 | 30 | 0 to 70 | 8-SOIC |
| LT1355CS8#PBF | Analog Devices Inc. | Voltage Feedback | 400 | 12 | 80 | 300 | 1 | 30 | 5 | 30 | 0 to 70 | 8-SOIC |
| AD746JRZ | Analog Devices Inc. | J-FET | 75 | 13 | 0.11 | 300 | 7 | 25 | 9 | 36 | 0 to 70 | 8-SOIC |
| ADA4898-2YRDZ | Analog Devices Inc. | Voltage Feedback | 55 | 50 | 0.1 | 20 | 7.9 | 40 | 9 | 33 | -40 to 105 | 8-SOIC-EP |
| ADA4898-2YRDZ-R7 | Analog Devices Inc. | Voltage Feedback | 55 | 50 | 0.1 | 20 | 7.9 | 40 | 9 | 33 | -40 to 105 | 8-SOIC-EP |
| LM833D | onsemi | Audio | 7 | 16 | 0.3 | 150 | 2.05 | 37 | 10 | 36 | -40 to 85 | 8-SOIC |
| LM833DR | Texas Instruments | Audio | 7 | 16 | 0.3 | 150 | 2.05 | 37 | 10 | 36 | -40 to 85 | 8-SOIC |
| MC33078D | STMicroelectronics | General Purpose | 7 | 15 | 0.25 | 150 | 4 | 37 | 5 | 30 | -40 to 105 | 8-SOIC |
| MC33078DT | STMicroelectronics | General Purpose | 7 | 15 | 0.25 | 150 | 4 | 37 | 5 | 30 | -40 to 105 | 8-SOIC |
| MC33078DR | Texas Instruments | General Purpose | 7 | 16 | 0.3 | 150 | 2.05 | 37 | 10 | 36 | -40 to 85 | 8-SOIC |
Engineering Selection Recommendations
Direct Equivalent Selection: The LT1355CS8#PBF is the direct equivalent of the LT1355CS8. Both parts share identical electrical specifications, the same base product number (LT1355), and are manufactured by Analog Devices Inc. Both maintain Active product status and ROHS3 compliance. Selection between these two variants depends solely on packaging format requirements: standard packaging versus tube packaging.
Voltage Feedback Amplifier Alternatives: The ADA4898-2YRDZ and ADA4898-2YRDZ-R7 are voltage feedback amplifiers from Analog Devices Inc. with Active product status and ROHS3 compliance. These parts feature higher gain bandwidth product (50 MHz versus 12 MHz) and lower input offset voltage (20 µV versus 300 µV). However, they require higher minimum supply voltage (9V versus 5V), operate at lower slew rate (55V/µs versus 400V/µs), and support extended operating temperature range (-40°C to 105°C versus 0°C to 70°C). These parts are suitable for applications requiring improved DC precision and wider temperature operation.
General Purpose and Audio Amplifier Alternatives: The MC33078D, MC33078DT, LM833D, and LM833DR are general purpose or audio amplifiers with Active product status and ROHS3 compliance. These parts operate within the 5V to 36V supply range and maintain 8-SOIC package compatibility. The MC33078 variants include automotive qualification (AEC-Q100) and extended temperature operation (-40°C to 105°C). These alternatives are suitable for applications where the specific voltage feedback topology and high slew rate of the LT1355CS8 are not required.
Compliance and Regulatory Status: All listed substitute parts maintain ROHS3 compliance and Active product status. The MC33078D and MC33078DT variants include AEC-Q100 automotive qualification. All parts are classified under ECCN EAR99 and HTSUS 8542.33.0001.
Frequently Asked Questions (FAQ)
Q: Can the LT1355CS8#PBF be used as a direct replacement for the LT1355CS8?
A: Yes. The LT1355CS8#PBF is electrically identical to the LT1355CS8. Both parts share the same base product number (LT1355), amplifier type (Voltage Feedback), circuit count (2), and all electrical specifications including slew rate (400V/µs), gain bandwidth product (12 MHz), input bias current (80 nA), input offset voltage (300 µV), supply current (1mA per channel), output current (30 mA), supply voltage range (5V to 30V), and operating temperature (0°C to 70°C). The only difference is packaging format.
Q: What are the key differences between the LT1355CS8 and the ADA4898-2YRDZ?
A: Both are voltage feedback amplifiers from Analog Devices Inc. with 2 circuits in 8-SOIC packages. The ADA4898-2YRDZ features higher gain bandwidth product (50 MHz versus 12 MHz), lower input offset voltage (20 µV versus 300 µV), and extended operating temperature range (-40°C to 105°C versus 0°C to 70°C). However, the ADA4898-2YRDZ operates at lower slew rate (55V/µs versus 400V/µs), requires higher minimum supply voltage (9V versus 5V), and has higher supply current (7.9mA versus 1mA per channel). The ADA4898-2YRDZ is suitable for precision DC applications with wider temperature requirements.
Q: Are the MC33078 variants suitable replacements for the LT1355CS8?
A: The MC33078D and MC33078DT are general purpose amplifiers with 2 circuits in 8-SOIC packages and compatible supply voltage range (5V to 30V). However, they differ significantly in amplifier type (General Purpose versus Voltage Feedback), slew rate (7V/µs versus 400V/µs), and gain bandwidth product (15 MHz versus 12 MHz). These parts are suitable for applications where high slew rate is not required. The MC33078 variants include automotive qualification (AEC-Q100) and extended operating temperature (-40°C to 105°C).
Q: What is the difference between the AD746JRZ and the LT1355CS8?
A: The AD746JRZ is a J-FET amplifier, while the LT1355CS8 is a voltage feedback amplifier. Both contain 2 circuits in 8-SOIC packages. The AD746JRZ features extremely low input bias current (110 pA versus 80 nA) and higher gain bandwidth product (13 MHz versus 12 MHz), but operates at significantly lower slew rate (75V/µs versus 400V/µs) and requires higher minimum supply voltage (9V versus 5V). The AD746JRZ is suitable for applications requiring ultra-low input bias current.
Q: Can I use the LM833D or LM833DR in place of the LT1355CS8?
A: The LM833D and LM833DR are audio amplifiers with 2 circuits in 8-SOIC packages. While they share the same package form factor and surface mount mounting type, they differ in amplifier type (Audio versus Voltage Feedback), slew rate (7V/µs versus 400V/µs), and supply current characteristics. These parts are suitable for audio and general-purpose applications where high slew rate is not required. The minimum supply voltage requirement is higher (10V versus 5V).
Q: What packaging options are available for the LT1355 base product?
A: The LT1355 base product is available in two packaging formats: standard packaging (LT1355CS8) and tube packaging (LT1355CS8#PBF). Both maintain identical electrical specifications and 8-SOIC form factor. Selection depends on procurement and assembly requirements.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance status. The LT1355CS8, LT1355CS8#PBF, AD746JRZ, ADA4898-2YRDZ, ADA4898-2YRDZ-R7, LM833D, LM833DR, MC33078D, MC33078DT, and MC33078DR are all ROHS3 compliant.
Q: What is the moisture sensitivity level for these parts?
A: The LT1355CS8, LT1355CS8#PBF, AD746JRZ, LM833D, LM833DR, MC33078D, MC33078DT, and MC33078DR all have Moisture Sensitivity Level (MSL) 1 (Unlimited). The ADA4898-2YRDZ and ADA4898-2YRDZ-R7 have MSL 3 (168 Hours), requiring controlled storage and handling conditions.
Q: Which substitute parts support automotive applications?
A: The MC33078D and MC33078DT are qualified for automotive applications with AEC-Q100 qualification and extended operating temperature range (-40°C to 105°C). These parts are suitable for automotive-grade circuit designs.
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