LT1354CS8 Equivalent & Substitute Parts

Part Overview

The LT1354CS8 is a voltage feedback amplifier integrated circuit manufactured by Analog Devices Inc., housed in an 8-SOIC surface mount package. This single-circuit operational amplifier is designed for general-purpose voltage feedback applications with a slew rate of 400V/µs and gain bandwidth product of 12 MHz. The device operates across a supply voltage range of 5V to 30V and is rated for 0°C to 70°C operating temperature. The LT1354CS8 maintains Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching amplifier topology, package form factor, electrical performance parameters, and compliance certifications to ensure functional interchangeability in circuit designs.

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 are identified based on the following substitution criteria:

Primary Substitution Criteria:

Amplifier topology: Voltage Feedback configuration
Package compatibility: 8-SOIC (0.154", 3.90mm Width) surface mount form factor
Single circuit configuration
Supply voltage range overlap: minimum 5V to 30V span capability
Operating temperature range compatibility or extended range
RoHS3 compliance and MSL Level 1 rating

Substitution Logic: Parts are grouped into two categories: direct equivalents and functional alternatives. Direct equivalents maintain identical or near-identical electrical specifications and packaging. Functional alternatives provide voltage feedback amplification in the same package with performance parameters that satisfy the same application requirements, though with different slew rates, bandwidth, or bias current characteristics. All substitute parts maintain surface mount 8-SOIC packaging and voltage feedback topology to ensure PCB-level compatibility and circuit functionality.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	Gain Bandwidth Product (MHz)	Current - Input Bias (nA/µA)	Voltage - Input Offset (µV/mV)	Current - Supply (mA)	Current - Output / Channel (mA)	Voltage - Supply Min (V)	Voltage - Supply Max (V)	Operating Temperature (°C)	Package	Product Status
LT1354CS8	Analog Devices Inc.	Voltage Feedback	400	12	80 nA	300 µV	1	30	5	30	0 to 70	8-SOIC	Active
LT1354CS8#PBF	Analog Devices Inc.	Voltage Feedback	400	12	80 nA	300 µV	1	30	5	30	0 to 70	8-SOIC	Active
AD818ARZ	Analog Devices Inc.	Voltage Feedback	500	—	—	—	7	50	5	36	—	8-SOIC	Active
AD818ARZ-REEL7	Analog Devices Inc.	Voltage Feedback	500	—	—	—	7	50	5	36	—	8-SOIC	Active
ISL55001IBZ	Renesas Electronics Corporation	Voltage Feedback	280	70	1.72 µA	60 µV	9	145	4.5	30	-40 to 85	8-SOIC	Active
ISL55001IBZ-T7	Renesas Electronics Corporation	Voltage Feedback	280	70	1.72 µA	60 µV	9	145	4.5	30	-40 to 85	8-SOIC	Active
ISL55001IBZ-T7A	Renesas Electronics Corporation	Voltage Feedback	280	70	1.72 µA	60 µV	9	145	4.5	30	-40 to 85	8-SOIC	Obsolete
LM7121IMX/NOPB	Texas Instruments	Voltage Feedback	1300	175	5.2 µA	900 µV	5.3	—	4.5	33	-40 to 85	8-SOIC	Active
THS4011CD	Texas Instruments	Voltage Feedback	310	290	2 µA	1 mV	7.8	110	9	32	0 to 70	8-SOIC	Active
THS4011CDR	Texas Instruments	Voltage Feedback	310	290	2 µA	1 mV	7.8	110	9	32	0 to 70	8-SOIC	Active

Engineering Selection Recommendations

Direct Equivalent: The LT1354CS8#PBF is a direct equivalent to the LT1354CS8, differing only in packaging format (Tube versus standard packaging). Both parts maintain identical electrical specifications and are manufactured by Analog Devices Inc. with Active product status and ROHS3 compliance. Selection between these two variants depends solely on procurement and assembly requirements.

Functional Substitutes - Analog Devices Inc.: The AD818ARZ and AD818ARZ-REEL7 are voltage feedback amplifiers in 8-SOIC packages with higher slew rate (500V/µs) and increased output current capability (50 mA). These parts support extended supply voltage range (5V to 36V) and maintain Active product status with ROHS3 compliance. These substitutes are suitable for applications requiring higher speed performance.

Functional Substitutes - Renesas Electronics Corporation: The ISL55001IBZ, ISL55001IBZ-T7, and ISL55001IBZ-T7A are voltage feedback amplifiers with higher gain bandwidth product (70 MHz) and extended operating temperature range (-40°C to 85°C). The ISL55001IBZ-T7A carries Obsolete product status and should not be selected for new designs. The ISL55001IBZ and ISL55001IBZ-T7 maintain Active status and ROHS3 compliance. These parts support supply voltage range of 4.5V to 30V and provide higher output current (145 mA).

Functional Substitutes - Texas Instruments: The LM7121IMX/NOPB offers significantly higher slew rate (1300V/µs) and gain bandwidth product (175 MHz) with extended operating temperature range (-40°C to 85°C). Supply voltage range extends to 33V maximum. This part maintains Active product status and ROHS3 compliance.

The THS4011CD and THS4011CDR provide the highest gain bandwidth product (290 MHz) among substitutes with slew rate of 310V/µs and output current of 110 mA. Operating temperature range matches the LT1354CS8 (0°C to 70°C). Minimum supply voltage requirement is 9V, which may limit applicability in lower voltage systems. Both variants maintain Active product status and ROHS3 compliance.

Selection Criteria:

For direct replacement with identical performance: LT1354CS8#PBF
For higher speed applications: LM7121IMX/NOPB or THS4011CD/THS4011CDR
For extended temperature range: ISL55001IBZ or ISL55001IBZ-T7
For higher output current capability: ISL55001IBZ series or AD818ARZ series
Avoid ISL55001IBZ-T7A due to Obsolete product status

All recommended substitutes maintain 8-SOIC surface mount packaging, voltage feedback topology, single circuit configuration, and ROHS3 compliance with MSL Level 1 rating.

Frequently Asked Questions (FAQ)

Q: Can the LT1354CS8 be directly replaced with LT1354CS8#PBF? A: Yes. Both parts are electrically identical with matching specifications across all parameters. The difference is packaging format: LT1354CS8 uses standard packaging while LT1354CS8#PBF uses Tube packaging. Selection depends on procurement and assembly line requirements.

Q: What is the primary difference between the LT1354CS8 and AD818ARZ? A: Both are voltage feedback amplifiers in 8-SOIC packages. The AD818ARZ provides higher slew rate (500V/µs versus 400V/µs) and higher output current (50 mA versus 30 mA). The AD818ARZ supports extended supply voltage range up to 36V. The LT1354CS8 has lower supply current (1 mA versus 7 mA).

Q: Can I use ISL55001IBZ in place of LT1354CS8 in a 5V supply system? A: The ISL55001IBZ minimum supply voltage is 4.5V, which is compatible with 5V systems. However, the ISL55001IBZ requires minimum 9V supply for the THS4011 series. Verify your specific supply voltage requirements before substitution.

Q: Why is ISL55001IBZ-T7A listed as Obsolete? A: ISL55001IBZ-T7A carries Obsolete product status from the manufacturer. This designation indicates the part is no longer in active production. For new designs, select ISL55001IBZ or ISL55001IBZ-T7 instead, both of which maintain Active status.

Q: What are the key parameters that determine substitutability? A: Substitutability is determined by: (1) Amplifier topology—must be Voltage Feedback; (2) Package form factor—must be 8-SOIC (0.154", 3.90mm Width) surface mount; (3) Single circuit configuration; (4) Supply voltage range overlap with the application requirement; (5) Operating temperature range compatibility; (6) Compliance certifications—ROHS3 and MSL Level 1.

Q: Which substitute offers the highest bandwidth performance? A: The THS4011CD and THS4011CDR offer the highest gain bandwidth product at 290 MHz with -3dB bandwidth of 290 MHz. The LM7121IMX/NOPB provides 175 MHz gain bandwidth product. These exceed the LT1354CS8 specification of 12 MHz.

Q: Can I use THS4011CD in a 5V supply system? A: No. The THS4011CD minimum supply voltage is 9V. This part is not suitable for 5V supply systems. Select alternatives with 5V minimum supply voltage such as LT1354CS8, AD818ARZ, or ISL55001IBZ series.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the LT1354CS8 environmental and regulatory specifications.

Q: What is the difference between AD818ARZ and AD818ARZ-REEL7? A: Both parts are electrically identical. AD818ARZ uses Tube packaging while AD818ARZ-REEL7 uses Cut Tape (CT) & Digi-Reel® packaging. Selection depends on assembly process requirements and tape-and-reel handling capabilities.

Q: Which substitute has the lowest input bias current? A: The LT1354CS8 has the lowest input bias current at 80 nA. Among substitutes, the AD818ARZ series specifications do not list input bias current. The THS4011 series specifies 2 µA, while ISL55001IBZ series specifies 1.72 µA.

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