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LT1354CS8#TR Equivalent & Substitute Parts
Part Overview
The LT1354CS8#TR is a voltage feedback amplifier manufactured by Analog Devices Inc., designed for single-circuit applications in 8-SOIC surface mount packaging. This linear amplifier operates across a 5V to 30V supply span with a slew rate of 400V/µs and 12 MHz gain bandwidth product. The device is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating.
Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and functional equivalence within the voltage feedback amplifier category. Selection of alternative components becomes necessary when the primary part number is unavailable, when specific packaging formats are required, or when design specifications permit operation within the performance envelope of higher-specification alternatives.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | Voltage Feedback | — |
| Number of Circuits | 1 | — |
| Slew Rate | 400 | V/µs |
| Gain Bandwidth Product | 12 | MHz |
| Current - Input Bias | 80 | nA |
| Voltage - Input Offset | 300 | µV |
| Current - Supply | 1 | mA |
| Current - Output / Channel | 30 | mA |
| Voltage - Supply Span (Min) | 5 | V |
| Voltage - Supply Span (Max) | 30 | V |
| Operating Temperature | 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 LT1354CS8#TR are classified into two categories based on electrical and mechanical compatibility:
Direct Substitutes (Identical Electrical Specifications)
Direct substitutes maintain all critical electrical parameters: 400V/µs slew rate, 12 MHz gain bandwidth product, 80 nA input bias current, 300 µV input offset voltage, 1 mA supply current, and 30 mA output current per channel. These parts operate within the identical 5V to 30V supply span and 0°C to 70°C temperature range. The LT1354CS8#TRPBF variant differs only in packaging format (Tape & Reel with lead-free designation) while maintaining all functional specifications.
Functional Equivalents (Enhanced Performance Parameters)
Functional equivalent parts exceed the minimum electrical specifications of the LT1354CS8#TR while maintaining voltage feedback amplifier topology and 8-SOIC package compatibility. These alternatives feature higher slew rates, increased gain bandwidth products, improved input offset voltage characteristics, or extended supply voltage ranges. Functional equivalents are suitable for designs where the LT1354CS8#TR specifications represent minimum requirements and where enhanced performance does not create design conflicts.
The following parameters determine substitution eligibility:
- Amplifier Type: Voltage Feedback (required)
- Number of Circuits: 1 (required)
- Package / Case: 8-SOIC (0.154", 3.90mm Width) (required)
- Mounting Type: Surface Mount (required)
- Supply Voltage Range: Must encompass or exceed 5V to 30V minimum
- Operating Temperature: Must encompass or exceed 0°C to 70°C minimum
- RoHS Status: ROHS3 Compliant (required)
Parameter Comparison
| Part Number | Manufacturer | 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) | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LT1354CS8#TR | Analog Devices Inc. | 400 | 12 | 80 | 300 | 1 | 30 | 5 | 30 | 0 to 70 | Active |
| LT1354CS8#TRPBF | Analog Devices Inc. | 400 | 12 | 80 | 300 | 1 | 30 | 5 | 30 | 0 to 70 | Active |
| AD818ARZ | Analog Devices Inc. | 500 | — | — | — | 7 | 50 | 5 | 36 | 0 to 70 | Active |
| AD818ARZ-REEL7 | Analog Devices Inc. | 500 | — | — | — | 7 | 50 | 5 | 36 | 0 to 70 | Active |
| ISL55001IBZ | Renesas Electronics Corporation | 280 | 70 | 1720 | 60 | 9 | 145 | 4.5 | 30 | -40 to 85 | Active |
| ISL55001IBZ-T7 | Renesas Electronics Corporation | 280 | 70 | 1720 | 60 | 9 | 145 | 4.5 | 30 | -40 to 85 | Active |
| ISL55001IBZ-T7A | Renesas Electronics Corporation | 280 | 70 | 1720 | 60 | 9 | 145 | 4.5 | 30 | -40 to 85 | Obsolete |
| LM7121IMX/NOPB | Texas Instruments | 1300 | 175 | 5200 | 900 | 5.3 | — | 4.5 | 33 | -40 to 85 | Active |
| THS4011CD | Texas Instruments | 310 | 290 | 2000 | 1000 | 7.8 | 110 | 9 | 32 | 0 to 70 | Active |
| THS4011CDR | Texas Instruments | 310 | 290 | 2000 | 1000 | 7.8 | 110 | 9 | 32 | 0 to 70 | Active |
| THS4041CD | Texas Instruments | 400 | — | 2500 | 2500 | 8 | 100 | 9 | 32 | 0 to 70 | Active |
Engineering Selection Recommendations
Direct Substitution
The LT1354CS8#TRPBF is a direct functional equivalent to the LT1354CS8#TR. Both parts maintain identical electrical specifications and operate within the same temperature and supply voltage ranges. The primary distinction is packaging format: LT1354CS8#TRPBF is supplied in Tape & Reel format with lead-free termination, while LT1354CS8#TR uses standard Tube packaging. Both parts carry Active product status and ROHS3 compliance. Selection between these variants depends on procurement requirements and assembly process specifications.
Functional Equivalent Selection
When the LT1354CS8#TR is unavailable and design specifications permit enhanced performance characteristics, the following active-status alternatives are suitable:
AD818ARZ and AD818ARZ-REEL7 (Analog Devices Inc.) provide 500V/µs slew rate and 50 mA output current, exceeding the LT1354CS8#TR baseline. Supply voltage range extends to 36V maximum. Both variants maintain Active product status and ROHS3 compliance. Packaging differs: AD818ARZ uses Tube format; AD818ARZ-REEL7 uses Cut Tape & Digi-Reel format.
THS4041CD (Texas Instruments) matches the 400V/µs slew rate of the LT1354CS8#TR while providing 100 mA output current capability. This part requires minimum 9V supply voltage, which may restrict application in lower-voltage designs. Active product status and ROHS3 compliance are maintained.
Parts Requiring Design Verification
ISL55001IBZ and ISL55001IBZ-T7 (Renesas Electronics Corporation) feature extended operating temperature range (-40°C to 85°C) and lower input offset voltage (60 µV). However, slew rate is reduced to 280V/µs, and input bias current increases to 1.72 µA. These characteristics require circuit-level evaluation for timing-sensitive applications. Both variants maintain Active product status and ROHS3 compliance.
LM7121IMX/NOPB (Texas Instruments) provides significantly enhanced performance with 1300V/µs slew rate and 175 MHz gain bandwidth product. Input bias current and offset voltage are elevated. Extended temperature range (-40°C to 85°C) and 33V maximum supply voltage are available. Active product status and ROHS3 compliance are confirmed.
THS4011CD and THS4011CDR (Texas Instruments) offer 290 MHz gain bandwidth product and 310V/µs slew rate. Minimum supply voltage requirement is 9V. Both variants maintain Active product status and ROHS3 compliance. Packaging differs: THS4011CD uses Tube format; THS4011CDR uses Tape & Reel format.
Parts Not Recommended
ISL55001IBZ-T7A is classified as Obsolete and should not be selected for new designs despite technical compatibility.
Frequently Asked Questions (FAQ)
Q: Can the LT1354CS8#TRPBF be used as a direct replacement for the LT1354CS8#TR?
A: Yes. The LT1354CS8#TRPBF is electrically and functionally identical to the LT1354CS8#TR. Both parts maintain 400V/µs slew rate, 12 MHz gain bandwidth product, and identical supply voltage and temperature operating ranges. The difference is packaging format: LT1354CS8#TRPBF is supplied in Tape & Reel with lead-free termination, while LT1354CS8#TR uses Tube packaging. Selection depends on assembly process requirements.
Q: What is the minimum supply voltage requirement for substitute parts?
A: The LT1354CS8#TR operates from 5V minimum supply voltage. Direct substitute LT1354CS8#TRPBF maintains this 5V minimum. Functional equivalents vary: AD818ARZ series and ISL55001 series support 5V and 4.5V minimums respectively, while THS4011 and THS4041 series require 9V minimum supply voltage. Design circuits operating below 9V cannot use THS4011 or THS4041 variants.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed maintain ROHS3 compliance. The LT1354CS8#TR and all identified equivalents are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).
Q: Which substitute part offers the highest slew rate?
A: The LM7121IMX/NOPB (Texas Instruments) provides 1300V/µs slew rate, significantly exceeding the LT1354CS8#TR baseline of 400V/µs. This part also features 175 MHz gain bandwidth product and extended operating temperature range (-40°C to 85°C). However, input bias current and offset voltage specifications are elevated, requiring circuit-level evaluation.
Q: Can I use THS4041CD in a design requiring 5V supply voltage?
A: No. The THS4041CD requires minimum 9V supply voltage. Designs operating at 5V supply voltage cannot use this part. The LT1354CS8#TR, LT1354CS8#TRPBF, AD818ARZ, AD818ARZ-REEL7, and ISL55001 series support 5V minimum supply voltage.
Q: What is the difference between AD818ARZ and AD818ARZ-REEL7?
A: Both parts are electrically identical with 500V/µs slew rate and 50 mA output current. The primary difference is packaging format: AD818ARZ is supplied in Tube packaging, while AD818ARZ-REEL7 uses Cut Tape & Digi-Reel format. Selection depends on assembly process and procurement specifications.
Q: Why is ISL55001IBZ-T7A listed as Obsolete?
A: ISL55001IBZ-T7A carries Obsolete product status designation. While technically compatible with the LT1354CS8#TR, this part should not be selected for new designs. Active alternatives include ISL55001IBZ and ISL55001IBZ-T7, which maintain identical electrical specifications.
Q: Can substitute parts with higher gain bandwidth products be used in designs specified for 12 MHz?
A: Yes. Parts with higher gain bandwidth products (such as LM7121IMX/NOPB at 175 MHz or THS4011 series at 290 MHz) can be used in designs specified for 12 MHz operation. Higher bandwidth capability does not create functional incompatibility in circuits designed for lower bandwidth. However, circuit stability and noise characteristics may differ and require evaluation.
Q: What is the operating temperature range difference between the LT1354CS8#TR and ISL55001 series?
A: The LT1354CS8#TR operates from 0°C to 70°C. The ISL55001 series (ISL55001IBZ, ISL55001IBZ-T7, ISL55001IBZ-T7A) operates from -40°C to 85°C, providing extended temperature range capability. Designs requiring operation below 0°C or above 70°C must use ISL55001 series or other extended-range alternatives.
Q: Are there packaging format options available for all substitute parts?
A: No. Some manufacturers offer limited packaging options. Analog Devices Inc. provides LT1354CS8#TR in Tube and LT1354CS8#TRPBF in Tape & Reel format. AD818ARZ is available in Tube; AD818ARZ-REEL7 is available in Cut Tape & Digi-Reel. Texas Instruments THS4011 series offers both Tube (THS4011CD) and Tape & Reel (THS4011CDR) formats. Verify packaging availability with component suppliers before design finalization.
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