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MCP6274-E/SL Equivalent & Substitute Parts
Part Overview
The MCP6274-E/SL is a general-purpose operational amplifier manufactured by Microchip Technology, configured as a 4-circuit rail-to-rail amplifier in a 14-SOIC surface-mount package. This device is classified as Active product status and is RoHS3 compliant. The MCP6274-E/SL operates across a supply voltage range of 2V to 6V with an operating temperature range of -40°C to 125°C, making it suitable for low-power analog signal conditioning applications.
Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. Alternative models may be required due to inventory availability, packaging format preferences, or specific performance optimization needs within the allowed parameter envelope.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Slew Rate | 0.9 | V/µs |
| Gain Bandwidth Product | 2 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 3 | mV |
| Current - Supply (x4 Channels) | 170 | µA |
| Current - Output / Channel | 25 | mA |
| Voltage - Supply Span (Min) | 2 | V |
| Voltage - Supply Span (Max) | 6 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the MCP6274-E/SL are grouped based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following mandatory conditions:
Mechanical Compatibility:
- Package type: 14-SOIC surface-mount configuration with 0.154" (3.90mm) width
- Mounting type: Surface Mount
- Moisture Sensitivity Level: 1 (Unlimited)
Electrical Compatibility:
- Number of circuits: 4 operational amplifiers per package
- Output configuration: Rail-to-Rail output capability
- Supply voltage range: Minimum 2V to 6V maximum (substitute must operate within or encompass this range)
- Operating temperature: -40°C to 125°C
- Compliance: RoHS3 and REACH Unaffected status
Performance Parameters (Allowed Variation): Substitutes are classified into two categories based on performance characteristics:
Category A - General Purpose Amplifiers (Direct Substitutes): Devices maintaining general-purpose amplifier classification with comparable slew rate, gain-bandwidth product, and input bias current specifications. These include AD8544 series variants.
Category B - Enhanced Performance Amplifiers: Devices with superior performance characteristics (higher slew rate, higher gain-bandwidth product, lower input offset voltage) that maintain full backward compatibility. These include AD8604 series (CMOS technology) and AD8554 series (Zero-Drift technology).
All substitute parts listed are Active product status with RoHS3 compliance and REACH Unaffected designation.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Package | Packaging Format |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP6274-E/SL | Microchip Technology | General Purpose | 0.9 | 2 | 1 | 3 | 170 | 25 | 2 | 6 | 14-SOIC | Tube |
| AD8544ARZ | Analog Devices Inc. | General Purpose | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | 14-SOIC | Tube |
| AD8544ARZ-REEL | Analog Devices Inc. | General Purpose | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8544ARZ-REEL7 | Analog Devices Inc. | General Purpose | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8544WARZ-R7 | Analog Devices Inc. | General Purpose | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | 14-SOIC | Tape & Reel |
| AD8554ARZ-REEL7 | Analog Devices Inc. | Zero-Drift | 0.4 | 1.5 | 10 | 0.001 | 850 | 30 | 2.7 | 5 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8604ARZ | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 0.08 | 750 | 50 | 2.7 | 5.5 | 14-SOIC | Tube |
| AD8604ARZ-REEL | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 0.08 | 750 | 50 | 2.7 | 5.5 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8604ARZ-REEL7 | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 0.08 | 750 | 50 | 2.7 | 5.5 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8604DRZ | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 1.3 | 750 | 50 | 2.7 | 5.5 | 14-SOIC | Tube |
| AD8604DRZ-REEL | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 1.3 | 750 | 50 | 2.7 | 5.5 | 14-SOIC | Cut Tape & Digi-Reel® |
Engineering Selection Recommendations
Packaging Format Selection:
The MCP6274-E/SL is supplied in Tube packaging format. Equivalent substitutes are available in three packaging configurations:
-
Tube Format: AD8544ARZ and AD8604ARZ / AD8604DRZ maintain identical tube packaging for direct board-level replacement without assembly process modification.
-
Cut Tape & Digi-Reel® Format: AD8544ARZ-REEL, AD8544ARZ-REEL7, AD8554ARZ-REEL7, AD8604ARZ-REEL, AD8604ARZ-REEL7, and AD8604DRZ-REEL are suitable for high-volume automated assembly operations.
-
Tape & Reel Format: AD8544WARZ-R7 is configured for continuous reel-based pick-and-place equipment.
Supply Voltage Compatibility:
The MCP6274-E/SL operates from 2V to 6V. All listed substitute parts operate from 2.7V minimum to 5.5V maximum, creating a compatible overlap window of 2.7V to 5.5V. Applications requiring operation below 2.7V or above 5.5V cannot use the listed substitutes.
Product Status and Compliance:
All substitute parts maintain Active product status with RoHS3 compliance and REACH Unaffected designation, matching the regulatory posture of the MCP6274-E/SL.
Inventory Availability:
Selection among substitute parts may be driven by current stock levels. AD8544ARZ-REEL7 (26,342 pcs), AD8554ARZ-REEL7 (25,951 pcs), and AD8604ARZ-REEL7 (12,500 pcs) represent the highest inventory positions among substitute options.
Frequently Asked Questions (FAQ)
Q1: Can AD8544ARZ directly replace MCP6274-E/SL in existing designs?
A: AD8544ARZ is mechanically and electrically compatible within the specified parameter envelope. Both devices are 4-circuit rail-to-rail operational amplifiers in 14-SOIC packages with identical mounting type and moisture sensitivity rating. The supply voltage overlap (2.7V to 5.5V) is compatible with most applications designed for the MCP6274-E/SL. Pin-to-pin compatibility is maintained.
Q2: What is the difference between AD8544ARZ and AD8604ARZ?
A: AD8544ARZ is a general-purpose amplifier with 0.92V/µs slew rate and 1MHz gain-bandwidth product. AD8604ARZ is a CMOS amplifier with 6V/µs slew rate and 8.4MHz gain-bandwidth product, offering superior speed performance. Both maintain 14-SOIC packaging and rail-to-rail output. AD8604ARZ is suitable for applications requiring higher bandwidth and faster transient response.
Q3: Are packaging format variants (Tube, Cut Tape & Digi-Reel®, Tape & Reel) electrically identical?
A: Yes. Packaging format variants of the same base part number (e.g., AD8544ARZ, AD8544ARZ-REEL, AD8544ARZ-REEL7, AD8544WARZ-R7) contain identical die and electrical specifications. Format selection is determined by assembly process requirements and inventory handling procedures, not electrical performance.
Q4: Can AD8554ARZ-REEL7 (Zero-Drift) replace MCP6274-E/SL?
A: AD8554ARZ-REEL7 is mechanically compatible in 14-SOIC packaging and maintains rail-to-rail output configuration. However, it is classified as a Zero-Drift amplifier with different performance characteristics: lower slew rate (0.4V/µs versus 0.9V/µs), higher supply current (850µA versus 170µA), and significantly lower input offset voltage (1µV versus 3mV). Substitution is valid only when zero-drift performance is required or when the performance differences do not degrade system operation.
Q5: What supply voltage range must be observed when substituting parts?
A: The MCP6274-E/SL operates from 2V to 6V. All listed substitute parts operate from 2.7V to 5.5V. The compatible overlap is 2.7V to 5.5V. Applications operating below 2.7V or above 5.5V cannot use these substitutes. Verify supply voltage specifications in your application before substitution.
Q6: Are all substitute parts RoHS3 compliant?
A: Yes. All substitute parts listed maintain RoHS3 compliance and REACH Unaffected status, matching the regulatory compliance of the MCP6274-E/SL.
Q7: What is the significance of input bias current differences (1pA versus 4pA)?
A: Input bias current affects high-impedance signal conditioning circuits. The MCP6274-E/SL specifies 1pA input bias current. AD8544 series specifies 4pA. For applications with source impedances exceeding 1MΩ, the difference may introduce measurable offset voltage. AD8604 series specifies 0.2pA, providing superior performance in ultra-high-impedance applications.
Q8: Can I use AD8604ARZ in a design originally specified for MCP6274-E/SL?
A: AD8604ARZ is mechanically and electrically compatible. It provides enhanced performance with 6V/µs slew rate (versus 0.9V/µs) and 8.4MHz gain-bandwidth product (versus 2MHz). Higher performance does not degrade compatibility; however, increased supply current (750µA versus 170µA) must be accommodated in power budget calculations. Substitution is valid and may improve system performance.
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