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AD8541ARTZ-REEL Equivalent & Substitute Parts
Part Overview
The AD8541ARTZ-REEL is a general-purpose operational amplifier manufactured by Analog Devices Inc., designed for rail-to-rail applications in a compact SOT-23-5 surface mount package. This single-circuit amplifier operates across a 2.7 V to 5.5 V supply range with a 1 MHz gain bandwidth product and is suitable for low-power signal conditioning and amplification tasks. The part is currently active in production with 2160 units in stock and carries ROHS3 compliance certification.
Equivalent and substitute parts are identified when alternative operational amplifiers meet or exceed the electrical performance specifications and maintain compatible packaging and mounting characteristics. Substitution becomes necessary due to supply availability, design optimization, or end-of-life considerations for related part numbers.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 1 | — |
| Output Type | Rail-to-Rail | — |
| Gain Bandwidth Product | 1 | MHz |
| Slew Rate | 0.92 | V/µs |
| Voltage Supply Span (Min) | 2.7 | V |
| Voltage Supply Span (Max) | 5.5 | V |
| Current - Input Bias | 4 | pA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply | 45 | µA |
| Current - Output / Channel | 30 | mA |
| Operating Temperature Range | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| Package / Case | SC-74A, SOT-753 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the AD8541ARTZ-REEL are selected based on the following critical parameters that determine functional compatibility:
Primary Substitution Criteria:
- Single-circuit general-purpose operational amplifier configuration
- Rail-to-rail output capability
- 1 MHz gain bandwidth product (or equivalent)
- Surface mount packaging in SOT-23-5 or compatible form factor
- Supply voltage range compatibility (minimum 2.7 V, maximum 5.5 V)
- Operating temperature range of -40°C to 125°C (or subset thereof)
- ROHS3 compliance and active product status
Secondary Performance Considerations:
- Slew rate of 0.92 V/µs or greater
- Input bias current within acceptable range for low-power applications
- Input offset voltage at or below 1.7 mV
- Supply current at or below 130 µA
- Output current capability of 25 mA or greater
Substitute parts meeting these criteria maintain electrical and mechanical compatibility with the AD8541ARTZ-REEL in standard operational amplifier circuit topologies.
Parameter Comparison
| Part Number | Manufacturer | Package | GBW (MHz) | Slew Rate (V/µs) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Status | RoHS |
|---|---|---|---|---|---|---|---|---|---|
| AD8541ARTZ-REEL | Analog Devices Inc. | SOT-23-5 | 1 | 0.92 | 2.7 | 5.5 | -40 to 125 | Active | ROHS3 |
| APX321WG-7 | Diodes Incorporated | SOT-25 | 1 | 1 | 2.5 | 5.5 | -40 to 85 | Active | ROHS3 |
| AZV321KTR-G1 | Diodes Incorporated | SOT-23-5 | 1 | 1 | 2.7 | 5.5 | -40 to 85 | Active | ROHS3 |
| BU7241G-TR | Rohm Semiconductor | 5-SSOP | 0.9 | 0.4 | 1.8 | 5.5 | -40 to 85 | Active | ROHS3 |
| LMV321IDBVR | UMW | SOT-23-5 | 1 | — | 2.1 | 5.5 | -25 to 85 | Active | ROHS3 |
| LMV321IDBVT | Texas Instruments | SOT-23-5 | 1 | 1 | 2.7 | 5.5 | -40 to 125 | Active | ROHS3 |
| LMV321LILT | STMicroelectronics | SOT-23-5 | 1.3 | 0.7 | 2.7 | 5.5 | -40 to 125 | Active | ROHS3 |
| LMV321M5 | Texas Instruments | SOT-23-5 | 1 | 1 | 2.7 | 5.5 | -40 to 85 | Obsolete | Non-compliant |
| LMV321M5/NOPB | Texas Instruments | SOT-23-5 | 1 | 1 | 2.7 | 5.5 | -40 to 85 | Active | ROHS3 |
| LMV321M5X/NOPB | Texas Instruments | SOT-23-5 | 1 | 1 | 2.7 | 5.5 | -40 to 85 | Active | ROHS3 |
| LMV321Q1M5X/NOPB | Texas Instruments | SOT-23-5 | 1 | 1 | 2.7 | 5.5 | -40 to 125 | Active | ROHS3 |
Engineering Selection Recommendations
Preferred Substitutes (Active Status, Full Compliance):
The following parts are recommended as direct substitutes based on active product status, ROHS3 compliance, and matching or extended operating temperature ranges:
-
LMV321IDBVT (Texas Instruments): Matches the AD8541ARTZ-REEL across all critical parameters including -40°C to 125°C operating range, 2.7 V to 5.5 V supply span, and SOT-23-5 packaging. ROHS3 compliant with 3200 units in stock.
-
LMV321LILT (STMicroelectronics): Provides equivalent functionality with enhanced gain bandwidth product (1.3 MHz) and maintains -40°C to 125°C operating range. SOT-23-5 package, ROHS3 compliant, with 666,966 units in stock.
-
LMV321Q1M5X/NOPB (Texas Instruments): Automotive-grade variant with AEC-Q100 qualification, -40°C to 125°C operating range, and ROHS3 compliance. Suitable for applications requiring automotive-level reliability. 4400 units in stock.
Secondary Substitutes (Active Status, Limited Temperature Range):
-
LMV321M5/NOPB (Texas Instruments): Active status with ROHS3 compliance but limited to -40°C to 85°C operating range. Suitable for applications not requiring extended high-temperature operation. 7100 units in stock.
-
LMV321M5X/NOPB (Texas Instruments): Similar to LMV321M5/NOPB with -40°C to 85°C range. ROHS3 compliant, 65,100 units in stock.
-
AZV321KTR-G1 (Diodes Incorporated): SOT-23-5 package with 1 MHz GBW and -40°C to 85°C range. ROHS3 compliant, 35,400 units in stock.
Not Recommended:
-
LMV321M5 (Texas Instruments): Obsolete status with RoHS non-compliance and REACH affected designation. Not suitable for new designs.
-
BU7241G-TR (Rohm Semiconductor): 5-SSOP package differs from SOT-23-5, limiting direct substitution in existing layouts. Lower slew rate (0.4 V/µs) and reduced output current (12 mA) restrict performance envelope.
-
APX321WG-7 (Diodes Incorporated): SOT-25 package incompatible with SOT-23-5 footprints. Operating temperature limited to -40°C to 85°C.
-
LMV321IDBVR (UMW): Operating temperature range limited to -25°C to 85°C, excluding full -40°C lower bound.
Frequently Asked Questions (FAQ)
Q: Can the AD8541ARTZ-REEL be directly replaced with the LMV321IDBVT?
A: Yes. The LMV321IDBVT maintains identical supply voltage range (2.7 V to 5.5 V), matching gain bandwidth product (1 MHz), SOT-23-5 packaging, and extended operating temperature range (-40°C to 125°C). Both are ROHS3 compliant and active products.
Q: What is the primary difference between LMV321LILT and the AD8541ARTZ-REEL?
A: The LMV321LILT provides a higher gain bandwidth product (1.3 MHz versus 1 MHz) and slightly lower slew rate (0.7 V/µs versus 0.92 V/µs). Both share identical supply voltage range, operating temperature range, and SOT-23-5 packaging. The LMV321LILT is suitable for applications requiring marginally higher frequency response.
Q: Why is the LMV321M5 not recommended as a substitute?
A: The LMV321M5 carries obsolete product status and is RoHS non-compliant with REACH affected designation. New designs should not incorporate obsolete parts. The LMV321M5/NOPB variant is the active, compliant alternative.
Q: Can the BU7241G-TR replace the AD8541ARTZ-REEL in existing PCB layouts?
A: No. The BU7241G-TR uses a 5-SSOP package, which is physically incompatible with the SOT-23-5 footprint of the AD8541ARTZ-REEL. PCB redesign would be required. Additionally, the BU7241G-TR exhibits lower slew rate (0.4 V/µs) and reduced output current capability (12 mA), limiting performance in certain applications.
Q: Is the LMV321Q1M5X/NOPB suitable for automotive applications?
A: Yes. The LMV321Q1M5X/NOPB carries automotive-grade designation with AEC-Q100 qualification, making it suitable for automotive and harsh-environment applications. It maintains the full -40°C to 125°C operating range and ROHS3 compliance.
Q: What is the difference between LMV321M5/NOPB and LMV321M5X/NOPB?
A: Both parts are functionally equivalent with identical electrical specifications and -40°C to 85°C operating range. The primary difference is inventory availability: LMV321M5/NOPB has 7100 units in stock, while LMV321M5X/NOPB has 65,100 units in stock. The "X" designation typically indicates extended availability or a variant designation from Texas Instruments.
Q: Can the APX321WG-7 be used as a substitute despite the different package?
A: The APX321WG-7 uses SOT-25 packaging, which is physically incompatible with SOT-23-5 footprints. Additionally, the operating temperature range is limited to -40°C to 85°C, excluding the extended high-temperature capability of the AD8541ARTZ-REEL. Direct substitution in existing designs is not possible without PCB modification.
Q: What does ROHS3 compliance mean for component selection?
A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. ROHS3 compliant parts are required for most commercial and industrial applications and are mandatory for many regulated markets. Parts lacking ROHS3 compliance should not be used in new designs.
Q: How does the LMV321IDBVR differ from other LMV321 variants?
A: The LMV321IDBVR is manufactured by UMW and has a minimum operating temperature of -25°C (versus -40°C for other variants), limiting its use in applications requiring full -40°C operation. It is otherwise electrically equivalent to other LMV321 variants with 1 MHz gain bandwidth product and SOT-23-5 packaging.
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