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MCP6404T-H/ST Equivalent & Substitute Parts
Part Overview
The MCP6404T-H/ST is a general-purpose operational amplifier manufactured by Microchip Technology, featuring four independent circuits in a 14-TSSOP surface-mount package. This rail-to-rail output amplifier operates across a supply voltage range of 1.8 V to 6 V and is designed for low-power applications requiring compact form factors. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this operational amplifier category.
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-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the MCP6404T-H/ST are qualified based on the following electrical and mechanical compatibility criteria:
Primary Substitution Criteria:
- Four independent operational amplifier circuits
- Rail-to-rail output configuration
- 14-TSSOP surface-mount package (0.173", 4.40mm Width)
- Gain bandwidth product of 1 MHz or greater
- Supply voltage range compatibility (minimum 1.8 V to 6 V overlap or broader range)
- Operating temperature range of -40°C or lower to 85°C or higher
- General-purpose amplifier classification
- ROHS3 compliance
Secondary Compatibility Parameters:
- Slew rate ≥ 0.5 V/µs
- Input bias current ≤ 1 nA
- Input offset voltage ≤ 2 mV
- Output current per channel ≥ 15 mA
- Supply current per channel ≤ 500 µA
Substitute parts are grouped by manufacturer and packaging configuration. All listed substitutes maintain the core electrical specifications and mechanical form factor required for direct replacement in applications designed for the MCP6404T-H/ST.
Parameter Comparison
| Part Number | Manufacturer | Slew Rate (V/µs) | GBW (MHz) | Input Bias (pA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MCP6404T-H/ST | Microchip Technology | 0.5 | 1 | 1 | 0.8 | 45 | 15 | 1.8 | 6 | -40 to 150 | 14-TSSOP |
| AD8544ARUZ | Analog Devices Inc. | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| AD8544ARUZ-REEL | Analog Devices Inc. | 0.92 | 1 | 4 | 1 | 45 | 30 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV324DTBR2G | onsemi | 1 | 1 | 1000 | 1.7 | 100 | 160 | 2.7 | 5.5 | -40 to 85 | 14-TSSOP |
| LMV324IPWR | Texas Instruments | 1 | 1 | 15000 | 1.7 | 410 | 40 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV324LIPT | STMicroelectronics | 0.7 | 1.3 | 27000 | 1 | 130 | 70 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV324MT/NOPB | Texas Instruments | 1 | 1 | 15000 | 1.7 | 410 | 160 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV324MTX/NOPB | Texas Instruments | 1 | 1 | 15000 | 1.7 | 410 | 160 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV324Q1MTX/NOPB | Texas Instruments | 1 | 1 | 15000 | 1.7 | 410 | 160 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
| LMV324Q3MT/NOPB | Texas Instruments | 1 | 1 | 15000 | 1.7 | 410 | 160 | 2.7 | 5.5 | -40 to 85 | 14-TSSOP |
| LMV324QPWR | Texas Instruments | 1 | 1 | 15000 | 1.7 | 410 | 40 | 2.7 | 5.5 | -40 to 125 | 14-TSSOP |
Engineering Selection Recommendations
Analog Devices AD8544ARUZ Series
The AD8544ARUZ and AD8544ARUZ-REEL are direct functional equivalents with improved slew rate (0.92 V/µs) and higher output current capability (30 mA per channel). Both variants maintain the 1 MHz gain bandwidth product and 14-TSSOP package. The primary limitation is the reduced maximum supply voltage (5.5 V versus 6 V) and narrower operating temperature range (-40°C to 125°C versus -40°C to 150°C). These parts are suitable for applications where the supply voltage does not exceed 5.5 V and the upper operating temperature requirement does not exceed 125°C. Both variants are ROHS3 compliant with MSL 1 rating.
Texas Instruments LMV324 Series
The LMV324 family offers multiple packaging and qualification options. The LMV324IPWR and LMV324QPWR variants provide standard commercial-grade performance with 1 V/µs slew rate and 1 MHz bandwidth. The LMV324MT/NOPB and LMV324MTX/NOPB offer higher output current (160 mA per channel). The LMV324Q1MTX/NOPB and LMV324Q3MT/NOPB are automotive-qualified variants with AEC-Q100 certification. All LMV324 variants operate within 2.7 V to 5.5 V supply range and -40°C to 125°C (or -40°C to 85°C for Q3 variant). These parts are ROHS3 compliant. Selection depends on packaging requirements (tube, cut tape, or tape & reel) and automotive qualification needs.
onsemi LMV324DTBR2G
The LMV324DTBR2G is a voltage feedback amplifier variant with 1 V/µs slew rate and significantly higher output current capability (160 mA per channel). This part operates within 2.7 V to 5.5 V supply range and -40°C to 85°C temperature range. The higher input bias current (1 nA) and elevated supply current (100 µA per channel) should be evaluated against application requirements. ROHS3 compliant with MSL 3 rating.
STMicroelectronics LMV324LIPT
The LMV324LIPT provides 0.7 V/µs slew rate and enhanced gain bandwidth product (1.3 MHz). Output current capability is 70 mA per channel with 130 µA supply current per channel. Operating range is 2.7 V to 5.5 V and -40°C to 125°C. ROHS3 compliant with MSL 1 rating. This variant is suitable for applications requiring slightly higher bandwidth performance.
Supply Voltage Compatibility Note
The MCP6404T-H/ST operates from 1.8 V minimum supply voltage. All listed substitutes require minimum 2.7 V supply voltage. Applications operating below 2.7 V cannot use these substitutes without circuit redesign.
Temperature Range Considerations
The MCP6404T-H/ST operates to 150°C maximum. Substitutes operate to 125°C or 85°C maximum. Applications requiring operation above 125°C cannot use these substitutes.
Frequently Asked Questions (FAQ)
Q: Can the AD8544ARUZ replace the MCP6404T-H/ST in all applications?
A: The AD8544ARUZ is functionally compatible for applications where the supply voltage does not exceed 5.5 V and the maximum operating temperature does not exceed 125°C. The MCP6404T-H/ST supports 6 V supply and 150°C operation, which the AD8544ARUZ does not. Verify your application's voltage and temperature requirements before substitution.
Q: What is the difference between LMV324IPWR and LMV324MT/NOPB?
A: Both are Texas Instruments LMV324 variants with identical electrical specifications (1 V/µs slew rate, 1 MHz bandwidth, -40°C to 125°C operation). The primary difference is packaging: LMV324IPWR is supplied in cut tape & digi-reel format, while LMV324MT/NOPB is supplied in tube format. Output current differs: IPWR provides 40 mA per channel, while MT/NOPB provides 160 mA per channel. Select based on packaging requirements and output current needs.
Q: Are automotive-qualified variants available?
A: Yes. The LMV324Q1MTX/NOPB and LMV324Q3MT/NOPB are automotive-qualified variants with AEC-Q100 certification. The Q1 variant operates to 125°C, while the Q3 variant operates to 85°C. Both are supplied in tape & reel or tube format respectively.
Q: What is the minimum supply voltage for substitutes?
A: All listed substitutes require a minimum supply voltage of 2.7 V. The MCP6404T-H/ST operates from 1.8 V minimum. Applications operating below 2.7 V cannot use these substitutes.
Q: Can I use LMV324DTBR2G as a substitute?
A: The LMV324DTBR2G is classified as a voltage feedback amplifier rather than a general-purpose amplifier. While it maintains the 14-TSSOP package and 1 MHz bandwidth, it has higher input bias current (1 nA versus 1 pA) and higher supply current (100 µA versus 45 µA per channel). It is suitable only if your application tolerates these parameter differences and operates within 2.7 V to 5.5 V and -40°C to 85°C.
Q: What does MSL 1 rating mean?
A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake-out requirements. The MCP6404T-H/ST and most substitutes carry MSL 1 rating, except LMV324DTBR2G (MSL 3, requiring 168-hour moisture bake-out). MSL 1 parts are preferred for standard manufacturing environments.
Q: Are all substitutes ROHS3 compliant?
A: Yes. All listed substitutes are ROHS3 compliant, matching the MCP6404T-H/ST compliance status.
Q: What is the difference between cut tape and tube packaging?
A: Cut tape (CT) & digi-reel packaging is suitable for automated pick-and-place assembly equipment. Tube packaging is suitable for manual assembly or lower-volume applications. Both formats contain the same electronic component; packaging selection depends on manufacturing process requirements.
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