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MCP6474T-E/ST Equivalent & Substitute Parts
Part Overview
The MCP6474T-E/ST is a CMOS operational amplifier integrated circuit manufactured by Microchip Technology, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as Active product status and is RoHS3 compliant. The MCP6474T-E/ST operates across a supply voltage range of 2V to 5.5V with an operating temperature range of -40°C to 125°C. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for design flexibility, inventory management, or supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | CMOS | |
| Number of Circuits | 4 | |
| Output Type | Rail-to-Rail | |
| Slew Rate | 1.1 | V/µs |
| Gain Bandwidth Product | 2 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 1.5 | mV |
| Current - Supply (x4 Channels) | 100 | µA |
| Current - Output / Channel | 32 | mA |
| Voltage - Supply Span (Min) | 2 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | |
| Mounting Type | Surface Mount | |
| RoHS Status | ROHS3 Compliant | |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the MCP6474T-E/ST are identified based on the following critical parameters that determine functional and mechanical compatibility:
Primary Compatibility Criteria:
- Package Type: 14-TSSOP surface mount configuration
- Number of Circuits: 4 independent amplifier circuits
- Output Configuration: Rail-to-rail output capability
- Supply Voltage Range: Minimum 2V to 5.5V maximum operating span
- Operating Temperature: -40°C to 125°C
- Mounting Type: Surface mount technology
- Compliance: RoHS3 compliant, REACH unaffected, MSL 1
Substitution Logic: Substitute parts are grouped into two categories based on amplifier type and performance characteristics:
Category 1 - General Purpose Amplifiers (AD8544 Series): Parts with general purpose amplifier classification, lower slew rate (0.92V/µs), and reduced gain bandwidth product (1 MHz). These substitutes maintain the 4-circuit configuration and rail-to-rail output in identical 14-TSSOP packaging with compatible supply voltage ranges (2.7V to 5.5V).
Category 2 - CMOS Amplifiers with Enhanced Performance (AD8604, AD8608, AD8618 Series): Parts with CMOS amplifier classification offering higher slew rates (6V/µs to 12V/µs), increased gain bandwidth products (8.4 MHz to 24 MHz), and improved input offset voltage specifications. These maintain the 4-circuit configuration, rail-to-rail output, and 14-TSSOP packaging with compatible supply voltage ranges (2.7V to 5.5V, with AD8618 maximum at 5V).
All substitute parts maintain Active product status, RoHS3 compliance, MSL 1 rating, and identical package dimensions.
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 Option |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP6474T-E/ST | Microchip Technology | CMOS | 1.1 | 2 | 1 | 1.5 | 100 | 32 | 2 | 5.5 | 14-TSSOP | Tape & Reel |
| AD8544ARUZ | Analog Devices Inc. | General Purpose | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | 14-TSSOP | Tube |
| AD8544ARUZ-REEL | Analog Devices Inc. | General Purpose | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | 14-TSSOP | Cut Tape & Digi-Reel |
| AD8604ARUZ | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 0.08 | 750 | 50 | 2.7 | 5.5 | 14-TSSOP | Tube |
| AD8604ARUZ-REEL | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 0.08 | 750 | 50 | 2.7 | 5.5 | 14-TSSOP | Cut Tape & Digi-Reel |
| AD8604DRUZ | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 1.3 | 750 | 50 | 2.7 | 5.5 | 14-TSSOP | Tube |
| AD8604DRUZ-REEL | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.2 | 1.3 | 750 | 50 | 2.7 | 5.5 | 14-TSSOP | Cut Tape & Digi-Reel |
| AD8608ARUZ | Analog Devices Inc. | CMOS | 5 | 10 | 1 | 0.08 | 1000 | 80 | 2.7 | 5.5 | 14-TSSOP | Tube |
| AD8608ARUZ-REEL | Analog Devices Inc. | CMOS | 5 | 10 | 1 | 0.08 | 1000 | 80 | 2.7 | 5.5 | 14-TSSOP | Cut Tape & Digi-Reel |
| AD8618ARUZ | Analog Devices Inc. | CMOS | 12 | 24 | 0.2 | 0.023 | 1700 | 150 | 2.7 | 5 | 14-TSSOP | Tube |
| AD8618ARUZ-REEL | Analog Devices Inc. | CMOS | 12 | 24 | 0.2 | 0.023 | 1700 | 150 | 2.7 | 5 | 14-TSSOP | Cut Tape & Digi-Reel |
Engineering Selection Recommendations
Packaging Considerations: All substitute parts are available in 14-TSSOP surface mount package with identical physical dimensions (0.173" width, 4.40mm). Packaging options include Tube and Cut Tape & Digi-Reel configurations. Selection between packaging types depends on assembly process requirements and inventory management practices.
Compliance and Regulatory Status: All substitute parts maintain Active product status and are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for all parts. ECCN classification is EAR99 and HTSUS code is 8542.33.0001 across all options.
Supply Voltage Compatibility: The MCP6474T-E/ST operates from 2V to 5.5V. AD8544 series substitutes operate from 2.7V to 5.5V. AD8604, AD8608 series operate from 2.7V to 5.5V. AD8618 series operates from 2.7V to 5V maximum. Applications requiring operation below 2.7V are limited to the MCP6474T-E/ST or AD8544 series with 2.7V minimum consideration.
Performance Trade-offs: Selection of substitute parts should account for differences in slew rate, gain bandwidth product, input offset voltage, and supply current. Higher performance CMOS variants (AD8604, AD8608, AD8618) offer increased slew rates and bandwidth but consume higher supply current. General purpose variants (AD8544) offer lower power consumption with reduced bandwidth performance.
Temperature Range: All parts operate across -40°C to 125°C with the exception of AD8618 series, which operates to 125°C maximum (same as MCP6474T-E/ST).
Frequently Asked Questions (FAQ)
Q: Can AD8544ARUZ directly replace MCP6474T-E/ST in all applications?
A: AD8544ARUZ maintains the same 4-circuit rail-to-rail configuration in 14-TSSOP packaging with compatible supply voltage range (2.7V to 5.5V). However, it is classified as a General Purpose amplifier with lower slew rate (0.92V/µs versus 1.1V/µs) and lower gain bandwidth product (1 MHz versus 2 MHz). Applications sensitive to slew rate or bandwidth performance require circuit-level evaluation.
Q: What is the difference between AD8604ARUZ and AD8604DRUZ?
A: Both parts are CMOS amplifiers with identical electrical performance specifications except for input offset voltage. AD8604ARUZ specifies 80 µV input offset voltage, while AD8604DRUZ specifies 1.3 mV input offset voltage. Both are available in Tube and Cut Tape & Digi-Reel packaging options.
Q: Are the REEL variants functionally identical to non-REEL variants?
A: Yes. Parts designated with "-REEL" suffix (such as AD8604ARUZ-REEL) are functionally identical to their non-REEL counterparts. The suffix indicates packaging format: Cut Tape & Digi-Reel versus Tube. Electrical specifications, performance characteristics, and compliance ratings are identical.
Q: Which substitute offers the lowest power consumption?
A: AD8544ARUZ and AD8544ARUZ-REEL offer the lowest supply current at 45 µA (x4 channels), compared to 100 µA for MCP6474T-E/ST. Higher performance CMOS variants consume significantly more current: AD8604 series at 750 µA, AD8608 series at 1 mA, and AD8618 series at 1.7 mA.
Q: Can AD8618ARUZ be used in applications requiring 5.5V supply?
A: No. AD8618ARUZ maximum supply voltage is 5V, while MCP6474T-E/ST and other substitutes support 5.5V. Applications requiring 5.5V operation must use MCP6474T-E/ST, AD8544 series, AD8604 series, or AD8608 series.
Q: What is the significance of the 14-TSSOP package specification?
A: The 14-TSSOP (Thin Shrink Small Outline Package) is a surface mount package with 14 pins, 0.173 inches width, and 4.40mm overall width. All substitute parts use identical package dimensions, ensuring mechanical compatibility with existing PCB layouts and assembly processes.
Q: Are all parts suitable for high-speed signal processing applications?
A: No. The MCP6474T-E/ST with 2 MHz gain bandwidth product and 1.1V/µs slew rate is suitable for general-purpose and low-frequency applications. AD8618ARUZ with 24 MHz gain bandwidth product and 12V/µs slew rate is suitable for higher-speed applications. Selection depends on specific bandwidth and slew rate requirements.
Q: What inventory levels are available for each substitute?
A: Inventory availability varies by part number and packaging option. AD8604DRUZ has the highest inventory at 86,280 pieces. AD8608ARUZ has 23,346 pieces. AD8618ARUZ-REEL has 7,099 pieces. AD8618ARUZ has 1,692 pieces. Specific inventory levels should be confirmed with the supplier for procurement planning.
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