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MCP6404T-H/SL Equivalent & Substitute Parts
Part Overview
The MCP6404T-H/SL is a general-purpose operational amplifier manufactured by Microchip Technology, featuring four independent circuits in a 14-SOIC surface-mount package. This rail-to-rail amplifier operates across a supply voltage range of 1.8 V to 6 V and is designed for applications requiring low-power, low-offset voltage performance. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.
Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the specified parameter constraints.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Rail-to-Rail | — |
| Slew Rate | 0.5 | V/µs |
| Gain Bandwidth Product | 1 | MHz |
| Current - Input Bias | 1 | pA |
| Voltage - Input Offset | 800 | µV |
| Current - Supply (x4 Channels) | 45 | µA |
| Current - Output / Channel | 15 | mA |
| Voltage - Supply Span (Min) | 1.8 | V |
| Voltage - Supply Span (Max) | 6 | V |
| Operating Temperature | -40 to 150 | °C |
| Package / Case | 14-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 MCP6404T-H/SL are qualified based on the following criteria:
Mechanical Compatibility: All substitute parts must use the 14-SOIC surface-mount package with identical 0.154" (3.90mm) width to ensure PCB layout compatibility without redesign.
Electrical Equivalence: Substitute parts must maintain the four-circuit rail-to-rail general-purpose amplifier topology. The following parameters define functional substitutability:
- Supply Voltage Range: Minimum 1.8 V and maximum 6 V operation, or a subset thereof
- Gain Bandwidth Product: 1 MHz or higher
- Output Type: Rail-to-rail configuration
- Input Bias Current: Low-leakage performance (≤ 4 pA)
- Slew Rate: 0.5 V/µs or higher
- Output Current: Minimum 15 mA per channel
Compliance Requirements: All substitute parts must maintain ROHS3 compliance and EAR99 export classification to ensure regulatory equivalence.
Packaging Format: Substitutes are available in Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, or Tube configurations to accommodate different procurement and assembly workflows.
Parameter Comparison
| Part Number | Manufacturer | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (µV) | Supply Current (µA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package | Packaging Format |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP6404T-H/SL | Microchip Technology | 0.5 | 1 | 1 | 800 | 45 | 15 | 1.8 | 6 | -40 to 150 | 14-SOIC | Tape & Reel |
| AD8544ARZ | Analog Devices Inc. | 0.92 | 1 | 4 | 1000 | 45 | 30 | 2.7 | 5.5 | -40 to 125 | 14-SOIC | Tube |
| AD8544ARZ-REEL | Analog Devices Inc. | 0.92 | 1 | 4 | 1000 | 45 | 30 | 2.7 | 5.5 | -40 to 125 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8544ARZ-REEL7 | Analog Devices Inc. | 0.92 | 1 | 4 | 1000 | 45 | 30 | 2.7 | 5.5 | -40 to 125 | 14-SOIC | Cut Tape & Digi-Reel® |
| AD8544WARZ-R7 | Analog Devices Inc. | 0.92 | 1 | 4 | 1000 | 45 | 30 | 2.7 | 5.5 | -40 to 125 | 14-SOIC | Tape & Reel |
| ISL28413FBZ | Renesas Electronics Corporation | 1 | 2 | 3 | 500 | 90 | 22 | 1.8 | 5.5 | -40 to 125 | 14-SOIC | Tube |
| ISL28413FBZ-T7 | Renesas Electronics Corporation | 1 | 2 | 3 | 500 | 90 | 22 | 1.8 | 5.5 | -40 to 125 | 14-SOIC | Tape & Reel |
| LMV344ID | Texas Instruments | 1 | 1 | 1 | 250 | 107 | 113 | 2.5 | 5.5 | -40 to 125 | 14-SOIC | Tube |
| LMV344IDR | Texas Instruments | 1 | 1 | 1 | 250 | 107 | 113 | 2.5 | 5.5 | -40 to 125 | 14-SOIC | Cut Tape & Digi-Reel® |
| LMV344MA/NOPB | Texas Instruments | 1 | 1 | 0.02 | 700 | 107 | 113 | 2.7 | 5.5 | -40 to 125 | 14-SOIC | Tube |
| LMV344MAX/NOPB | Texas Instruments | 1 | 1 | 0.02 | 700 | 107 | 113 | 2.7 | 5.5 | -40 to 125 | 14-SOIC | Tape & Reel |
Engineering Selection Recommendations
Analog Devices AD8544 Series (AD8544ARZ, AD8544ARZ-REEL, AD8544ARZ-REEL7, AD8544WARZ-R7)
The AD8544 family from Analog Devices provides direct functional substitution with enhanced slew rate performance (0.92 V/µs) and higher output current capability (30 mA per channel). These devices maintain 1 MHz gain bandwidth product and rail-to-rail output configuration. The supply voltage range is constrained to 2.7 V to 5.5 V, which excludes operation below 1.8 V. All variants are ROHS3 compliant and carry active product status. The AD8544WARZ-R7 variant in Tape & Reel format provides the closest packaging alignment to the MCP6404T-H/SL.
Renesas ISL28413 Series (ISL28413FBZ, ISL28413FBZ-T7)
The ISL28413 family from Renesas Electronics offers enhanced performance with 1 V/µs slew rate and 2 MHz gain bandwidth product. Input offset voltage is reduced to 500 µV, and input bias current is 3 pA. The supply voltage range extends from 1.8 V to 5.5 V, maintaining compatibility with the lower supply limit of the MCP6404T-H/SL. Supply current consumption is elevated at 90 µA across four channels. Both variants are ROHS3 compliant with active product status. The ISL28413FBZ-T7 in Tape & Reel format aligns with the original packaging specification.
Texas Instruments LMV344 Series (LMV344ID, LMV344IDR, LMV344MA/NOPB, LMV344MAX/NOPB)
The LMV344 family from Texas Instruments provides CMOS amplifier topology with 1 V/µs slew rate and 1 MHz gain bandwidth product. Input bias current is exceptionally low at 0.02 pA (LMV344MA/NOPB and LMV344MAX/NOPB variants), and input offset voltage ranges from 250 µV to 700 µV. Output current capability is significantly higher at 113 mA per channel. The supply voltage range is 2.5 V to 5.5 V or 2.7 V to 5.5 V depending on variant. The LMV344ID carries Last Time Buy status, indicating end-of-life production. The LMV344MAX/NOPB in Tape & Reel format provides active product status with equivalent packaging format.
Selection Criteria by Application Requirement:
For applications requiring extended low-voltage operation (1.8 V minimum), the ISL28413FBZ-T7 or MCP6404T-H/SL are the only options. For applications requiring maximum output current capability, the LMV344 series delivers 113 mA per channel. For applications prioritizing slew rate performance, the ISL28413 series at 1 V/µs or LMV344 series at 1 V/µs exceed the MCP6404T-H/SL baseline of 0.5 V/µs. For applications with strict supply voltage constraints between 2.7 V and 5.5 V, all substitute options are viable.
Frequently Asked Questions (FAQ)
Q: Can the AD8544ARZ directly replace the MCP6404T-H/SL in all applications?
A: The AD8544ARZ provides functional substitution for applications operating within the 2.7 V to 5.5 V supply range. The MCP6404T-H/SL supports operation down to 1.8 V, which the AD8544ARZ does not. If your application requires supply voltages below 2.7 V, the AD8544ARZ is not suitable. Both devices share identical 14-SOIC packaging and 1 MHz gain bandwidth product, enabling direct PCB layout compatibility.
Q: What is the difference between AD8544ARZ, AD8544ARZ-REEL, and AD8544ARZ-REEL7?
A: These part numbers represent the same die and electrical specifications but differ in packaging format. AD8544ARZ is supplied in Tube format. AD8544ARZ-REEL and AD8544ARZ-REEL7 are supplied in Cut Tape & Digi-Reel® format. The selection depends on your assembly process requirements. All three are electrically identical.
Q: Why does the ISL28413FBZ-T7 consume more supply current than the MCP6404T-H/SL?
A: The ISL28413FBZ-T7 draws 90 µA across four channels compared to 45 µA for the MCP6404T-H/SL. This increased consumption reflects the higher slew rate (1 V/µs versus 0.5 V/µs) and higher gain bandwidth product (2 MHz versus 1 MHz). Applications with strict power budgets must account for this 2× increase in quiescent current.
Q: Is the LMV344ID suitable for new designs?
A: The LMV344ID carries Last Time Buy status, indicating Microchip has discontinued production. This part should not be selected for new designs. The LMV344MAX/NOPB from the same family is in active production status and provides equivalent electrical performance with Tape & Reel packaging.
Q: Can I use the LMV344 series in place of the MCP6404T-H/SL if my supply voltage is 1.8 V?
A: No. The LMV344 series minimum supply voltage is 2.5 V (LMV344ID) or 2.7 V (other variants). If your application requires 1.8 V operation, only the MCP6404T-H/SL or ISL28413 series are suitable.
Q: What is the significance of the "W" designation in AD8544WARZ-R7?
A: The "W" in AD8544WARZ-R7 indicates a wide-temperature-range variant. However, the operating temperature range remains -40°C to 125°C, identical to other AD8544 variants. The designation reflects internal qualification or manufacturing process differences not reflected in the published temperature specification.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All substitute parts listed carry ROHS3 compliance certification, matching the MCP6404T-H/SL compliance status. All parts are also classified as EAR99 for export purposes and carry REACH Unaffected status.
Q: Which substitute offers the lowest input offset voltage?
A: The LMV344ID and LMV344IDR offer the lowest input offset voltage at 250 µV. The ISL28413 series provides 500 µV. The MCP6404T-H/SL specifies 800 µV. For applications requiring minimal offset voltage, the LMV344 series is preferred, though the LMV344ID is end-of-life.
Q: What is the moisture sensitivity level difference between MCP6404T-H/SL and ISL28413FBZ-T7?
A: The MCP6404T-H/SL carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The ISL28413FBZ-T7 carries MSL 2 (1 Year), requiring storage in controlled humidity conditions and baking before reflow if exposed to ambient humidity for extended periods. This affects handling and storage procedures.
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