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MCP6494T-E/SL Equivalent & Substitute Parts
Part Overview
The MCP6494T-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 MCP6494T-E/SL is supplied in Tape & Reel (TR) packaging with 12,800 pieces currently in stock.
Equivalent and substitute parts are identified when alternative amplifier designs meet the same functional requirements within specified electrical and mechanical tolerances. Substitution becomes necessary due to supply constraints, manufacturing discontinuation, or design optimization requirements while maintaining circuit performance within defined parameters.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | MCP6494T-E/SL | — |
| Manufacturer | Microchip Technology | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Slew Rate | 6 | V/µs |
| Gain Bandwidth Product | 7.5 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 1.5 | mV |
| Current - Supply (x4 Channels) | 530 | µA |
| Current - Output / Channel | 15 | mA |
| Voltage - Supply Span (Min) | 2.4 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
| REACH Status | REACH Unaffected | — |
Substitute Part Grouping Explanation
Substitute parts for the MCP6494T-E/SL are identified based on the following critical parameters that determine functional equivalence:
Primary Substitution Criteria:
- Amplifier Type: General Purpose or CMOS
- Number of Circuits: 4
- Output Type: Rail-to-Rail
- Package / Case: 14-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Operating Temperature Range: -40°C to 125°C
- Voltage Supply Span: Minimum 2.4V to 2.7V; Maximum 5.5V
Secondary Compatibility Parameters:
- Slew Rate: 0.92 V/µs to 6 V/µs
- Gain Bandwidth Product: 1 MHz to 10 MHz
- Current - Input Bias: 0.2 pA to 4 pA
- Voltage - Input Offset: 80 µV to 1.5 mV
- Current - Supply: 45 µA to 1 mA (x4 Channels)
- Current - Output / Channel: 15 mA to 80 mA
Substitute parts are grouped by manufacturer and base product number. Packaging variants (Tube, Cut Tape & Digi-Reel, Tape & Reel) of the same base product are considered equivalent for electrical performance but differ in supply format and inventory availability.
Parameter Comparison
| Parameter | MCP6494T-E/SL | AD8544ARZ | AD8544ARZ-REEL | AD8544ARZ-REEL7 | AD8544WARZ-R7 | AD8604ARZ | AD8604ARZ-REEL | AD8604ARZ-REEL7 | AD8604DRZ | AD8604DRZ-REEL | AD8608ARZ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Amplifier Type | General Purpose | General Purpose | General Purpose | General Purpose | General Purpose | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS |
| Number of Circuits | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Output Type | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Package / Case | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Slew Rate (V/µs) | 6 | 0.92 | 0.92 | 0.92 | 0.92 | 6 | 6 | 6 | 6 | 6 | 5 |
| Gain Bandwidth Product (MHz) | 7.5 | 1 | 1 | 1 | 1 | 8.4 | 8.4 | 8.4 | 8.4 | 8.4 | 10 |
| Current - Input Bias (pA) | 1 | 4 | 4 | 4 | 4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 1 |
| Voltage - Input Offset (mV) | 1.5 | 1 | 1 | 1 | 1 | 0.08 | 0.08 | 0.08 | 1.3 | 1.3 | 0.08 |
| Current - Supply (µA, x4 Channels) | 530 | 45 | 45 | 45 | 45 | 750 | 750 | 750 | 750 | 750 | 1000 |
| Current - Output / Channel (mA) | 15 | 30 | 30 | 30 | 30 | 50 | 50 | 50 | 50 | 50 | 80 |
| Voltage - Supply Span Min (V) | 2.4 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
| Voltage - Supply Span Max (V) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| Operating Temperature (°C) | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All substitute parts listed are Active product status devices with RoHS3 compliance and REACH Unaffected designation, meeting regulatory requirements equivalent to the MCP6494T-E/SL. Selection among substitute parts depends on specific application requirements within the defined electrical parameter ranges.
AD8544 Series (General Purpose Amplifiers): The AD8544ARZ, AD8544ARZ-REEL, AD8544ARZ-REEL7, and AD8544WARZ-R7 are general-purpose amplifiers with identical electrical specifications across packaging variants. These devices feature lower supply current (45 µA vs. 530 µA) and higher output current capability (30 mA vs. 15 mA) compared to the MCP6494T-E/SL. Slew rate is reduced to 0.92 V/µs and gain bandwidth product is 1 MHz. These parts are suitable for low-power applications where reduced bandwidth is acceptable.
AD8604 Series (CMOS Amplifiers): The AD8604ARZ, AD8604ARZ-REEL, AD8604ARZ-REEL7, AD8604DRZ, and AD8604DRZ-REEL are CMOS amplifiers designated as DigiTrim® series. These devices match the MCP6494T-E/SL slew rate (6 V/µs) and exceed the gain bandwidth product (8.4 MHz). Input bias current is significantly lower (0.2 pA). Supply current is higher (750 µA) with increased output current capability (50 mA). The AD8604ARZ variants feature 80 µV input offset voltage, while AD8604DRZ variants specify 1.3 mV.
AD8608 Series (CMOS Amplifier): The AD8608ARZ is a CMOS DigiTrim® amplifier with the highest gain bandwidth product (10 MHz) and slew rate of 5 V/µs. Input bias current is 1 pA, matching the MCP6494T-E/SL. Supply current is 1 mA with maximum output current of 80 mA per channel. This device provides the highest performance envelope among listed substitutes.
Packaging Considerations: Tube packaging (ARZ suffix) is suitable for manual assembly and small-volume applications. Cut Tape & Digi-Reel® packaging (REEL and REEL7 suffixes) is optimized for automated pick-and-place assembly. Tape & Reel (TR) packaging (WARZ-R7 suffix) is standard for high-volume production. Electrical performance is identical across packaging variants of the same base product number.
Frequently Asked Questions (FAQ)
Q1: Can AD8544 series parts directly replace MCP6494T-E/SL in all applications?
A: AD8544 series parts are electrically compatible within the 14-SOIC package and rail-to-rail output specification. However, the reduced slew rate (0.92 V/µs vs. 6 V/µs) and lower gain bandwidth product (1 MHz vs. 7.5 MHz) may limit performance in high-speed signal conditioning applications. Applications requiring bandwidth above 1 MHz should use AD8604 or AD8608 series alternatives.
Q2: What is the difference between AD8604ARZ and AD8604DRZ?
A: Both devices are CMOS amplifiers in 14-SOIC packages with identical electrical performance except for voltage input offset specification. AD8604ARZ specifies 80 µV input offset voltage, while AD8604DRZ specifies 1.3 mV. Selection depends on application offset voltage tolerance requirements. All other parameters, including slew rate, gain bandwidth product, and supply current, are identical.
Q3: Are packaging variants of the same base product (e.g., AD8544ARZ, AD8544ARZ-REEL, AD8544ARZ-REEL7) electrically equivalent?
A: Yes. Packaging variants of the same base product number (AD8544, AD8604, AD8608) have identical electrical specifications. Differences are limited to supply format: Tube for manual assembly, Cut Tape & Digi-Reel® for automated assembly with reel options, and Tape & Reel for high-volume production. Electrical performance and pin configuration are unchanged across packaging variants.
Q4: Which substitute part offers the lowest power consumption?
A: The AD8544 series offers the lowest supply current at 45 µA (x4 Channels), compared to 530 µA for the MCP6494T-E/SL. This represents an 11.8× reduction in supply current. AD8544 series parts are recommended for battery-powered or energy-constrained applications where bandwidth requirements do not exceed 1 MHz.
Q5: Which substitute part provides the highest output current capability?
A: The AD8608ARZ provides the highest output current per channel at 80 mA, compared to 15 mA for the MCP6494T-E/SL. This represents a 5.3× increase in output drive capability. AD8608ARZ is suitable for applications requiring direct drive of low-impedance loads or multiple parallel output stages.
Q6: Are all substitute parts compliant with RoHS3 and REACH regulations?
A: Yes. All substitute parts listed are RoHS3 compliant and REACH Unaffected, matching the regulatory status of the MCP6494T-E/SL. All devices are suitable for applications requiring environmental compliance certification.
Q7: What is the minimum supply voltage difference between MCP6494T-E/SL and substitute parts?
A: The MCP6494T-E/SL specifies a minimum supply voltage of 2.4 V, while all Analog Devices substitute parts specify 2.7 V. Applications operating below 2.7 V require the MCP6494T-E/SL or alternative parts with lower minimum supply voltage specifications. The maximum supply voltage of 5.5 V is identical across all parts.
Q8: Can AD8608ARZ be used as a direct replacement for MCP6494T-E/SL in existing PCB designs?
A: Yes, from a package and pinout perspective. The AD8608ARZ is housed in a 14-SOIC package with identical pin configuration. However, circuit performance will differ due to higher gain bandwidth product (10 MHz vs. 7.5 MHz), different slew rate (5 V/µs vs. 6 V/µs), and increased supply current (1 mA vs. 530 µA). Applications should be re-evaluated for stability and power budget compatibility.
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