MCP6404-H/ST Equivalent & Substitute Parts

Part Overview

The MCP6404-H/ST is a general purpose operational amplifier integrated circuit manufactured by Microchip Technology. This 4-circuit rail-to-rail amplifier is packaged in a 14-TSSOP surface mount configuration and operates across a supply voltage range of 1.8 V to 6 V. The device is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to address application requirements including extended temperature ranges, alternative packaging formats, or specific manufacturer availability.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	MCP6404-H/ST	—
Manufacturer	Microchip Technology	—
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	6	V
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
Operating Temperature	-40 to 150	°C
Product Status	Active	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MCP6404-H/ST is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Number of Circuits: 4 (all substitutes must provide 4 independent amplifier circuits)
Output Type: Rail-to-Rail (all substitutes must support rail-to-rail output)
Package / Case: 14-TSSOP (0.173", 4.40mm Width) (physical and electrical compatibility)
Mounting Type: Surface Mount (PCB assembly compatibility)
Voltage - Supply Span: Minimum 1.8 V to Maximum 6 V (the substitute supply range must encompass or be compatible with the application supply voltage)

Performance Parameters Affecting Substitution:

Slew Rate: 0.5 V/µs (minimum acceptable performance for signal fidelity)
Gain Bandwidth Product: 1 MHz (frequency response capability)
Current - Input Bias: 1 pA (input impedance characteristics)
Voltage - Input Offset: 800 µV (DC accuracy)
Current - Supply: 45 µA per 4 channels (power consumption budget)
Current - Output / Channel: 15 mA (load driving capability)
Operating Temperature: -40°C to 150°C (thermal operating window)

Substitute parts are grouped based on whether they meet all mandatory criteria and how their performance parameters compare to the MCP6404-H/ST baseline. Parts with superior or equivalent performance in slew rate, bandwidth, input bias current, and output current capacity are suitable direct replacements. Parts with restricted supply voltage ranges or narrower temperature operating windows require application-level verification.

Parameter Comparison

Parameter	MCP6404-H/ST	AD8544ARUZ	ISL28413FVZ	LMV324IPWR	LMV324LIPT	LMV324MT/NOPB
Manufacturer	Microchip Technology	Analog Devices Inc.	Renesas Electronics	Texas Instruments	STMicroelectronics	Texas Instruments
Number of Circuits	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
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply Span (Min)	1.8 V	2.7 V	1.8 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	6 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Slew Rate	0.5 V/µs	0.92 V/µs	1 V/µs	1 V/µs	0.7 V/µs	1 V/µs
Gain Bandwidth Product	1 MHz	1 MHz	2 MHz	1 MHz	1.3 MHz	1 MHz
Current - Input Bias	1 pA	4 pA	3 pA	15 nA	27 nA	15 nA
Voltage - Input Offset	800 µV	1 mV	500 µV	1.7 mV	1 mV	1.7 mV
Current - Supply (x4 Channels)	45 µA	45 µA	90 µA	410 µA	130 µA	410 µA
Current - Output / Channel	15 mA	30 mA	22 mA	40 mA	70 mA	160 mA
Operating Temperature	-40 to 150°C	-40 to 125°C	-40 to 125°C	-40 to 125°C	-40 to 125°C	-40 to 125°C
Product Status	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

AD8544ARUZ / AD8544ARUZ-REEL (Analog Devices Inc.)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Slew rate of 0.92 V/µs exceeds MCP6404-H/ST baseline
Supply voltage range 2.7 V to 5.5 V is compatible with applications using 2.7 V to 5.5 V supplies
Operating temperature range -40°C to 125°C is narrower than MCP6404-H/ST; applications requiring operation above 125°C require verification
Current output per channel (30 mA) doubles the MCP6404-H/ST capability
Product Status: Active; ROHS3 Compliant; MSL 1 (Unlimited)
Available in Tube (AD8544ARUZ) and Cut Tape & Digi-Reel® (AD8544ARUZ-REEL) packaging

ISL28413FVZ (Renesas Electronics Corporation)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Slew rate of 1 V/µs and gain bandwidth product of 2 MHz exceed MCP6404-H/ST performance
Supply voltage range 1.8 V to 5.5 V matches the lower supply limit of MCP6404-H/ST
Operating temperature range -40°C to 125°C is narrower than MCP6404-H/ST
Current output per channel (22 mA) exceeds MCP6404-H/ST capability
Product Status: Active; ROHS3 Compliant; MSL 2 (1 Year)
Higher supply current (90 µA for 4 channels) compared to MCP6404-H/ST (45 µA)

Secondary Substitutes (Conditional Compatibility):

LMV324IPWR (Texas Instruments)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-Rail output, and 14-TSSOP packaging
Slew rate of 1 V/µs exceeds MCP6404-H/ST baseline
Supply voltage range 2.7 V to 5.5 V requires applications to operate within this window
Operating temperature range -40°C to 125°C is narrower than MCP6404-H/ST
Current output per channel (40 mA) significantly exceeds MCP6404-H/ST capability
Supply current (410 µA for 4 channels) is substantially higher than MCP6404-H/ST
Product Status: Active; ROHS3 Compliant; MSL 2 (1 Year)
Highest inventory availability (95,300 Pcs)

LMV324LIPT (STMicroelectronics)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Slew rate of 0.7 V/µs and gain bandwidth product of 1.3 MHz provide comparable performance
Supply voltage range 2.7 V to 5.5 V requires applications to operate within this window
Operating temperature range -40°C to 125°C is narrower than MCP6404-H/ST
Current output per channel (70 mA) significantly exceeds MCP6404-H/ST capability
Supply current (130 µA for 4 channels) is higher than MCP6404-H/ST
Product Status: Active; ROHS3 Compliant; MSL 1 (Unlimited)

LMV324MT/NOPB (Texas Instruments)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Slew rate of 1 V/µs exceeds MCP6404-H/ST baseline
Supply voltage range 2.7 V to 5.5 V requires applications to operate within this window
Operating temperature range -40°C to 125°C is narrower than MCP6404-H/ST
Current output per channel (160 mA) significantly exceeds MCP6404-H/ST capability
Supply current (410 µA for 4 channels) is substantially higher than MCP6404-H/ST
Product Status: Active; ROHS3 Compliant; MSL 1 (Unlimited)
Series designation: LMV®

LMV324MTX/NOPB (Texas Instruments)

Identical electrical specifications to LMV324MT/NOPB
Packaging format: Cut Tape (CT) & Digi-Reel® (differs from Tube packaging of LMV324MT/NOPB)
Product Status: Active; ROHS3 Compliant; MSL 2 (1 Year)
Series designation: LMV®

Automotive-Grade Substitutes:

LMV324Q1MTX/NOPB (Texas Instruments)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Grade: Automotive; Qualification: AEC-Q100
Slew rate of 1 V/µs exceeds MCP6404-H/ST baseline
Supply voltage range 2.7 V to 5.5 V requires applications to operate within this window
Operating temperature range -40°C to 125°C is narrower than MCP6404-H/ST
Current output per channel (160 mA) significantly exceeds MCP6404-H/ST capability
Supply current (410 µA for 4 channels) is substantially higher than MCP6404-H/ST
Product Status: Active; ROHS3 Compliant; MSL 1 (Unlimited)
Packaging: Tape & Reel (TR)

LMV324Q3MT/NOPB (Texas Instruments)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Grade: Automotive; Qualification: AEC-Q100
Slew rate of 1 V/µs exceeds MCP6404-H/ST baseline
Supply voltage range 2.7 V to 5.5 V requires applications to operate within this window
Operating temperature range -40°C to 85°C is significantly narrower than MCP6404-H/ST
Current output per channel (160 mA) significantly exceeds MCP6404-H/ST capability
Supply current (410 µA for 4 channels) is substantially higher than MCP6404-H/ST
Product Status: Active; ROHS3 Compliant; MSL 1 (Unlimited)
Packaging: Tube

LMV324DTBR2G (onsemi)

Meets all mandatory compatibility criteria with 4 circuits, rail-to-rail output, and 14-TSSOP packaging
Amplifier Type: Voltage Feedback (differs from General Purpose classification of MCP6404-H/ST)
Slew rate of 1 V/µs exceeds MCP6404-H/ST baseline
Supply voltage range 2.7 V to 5.5 V requires applications to operate within this window
Operating temperature range -40°C to 85°C is significantly narrower than MCP6404-H/ST
Current - Input Bias: 1 nA (higher than MCP6404-H/ST at 1 pA)
Voltage - Input Offset: 1.7 mV (higher than MCP6404-H/ST at 800 µV)
Current output per channel (160 mA) significantly exceeds MCP6404-H/ST capability
Supply current (100 µA for 4 channels) is higher than MCP6404-H/ST
Product Status: Active; ROHS3 Compliant; MSL 3 (168 Hours)
Packaging: Cut Tape (CT) & Digi-Reel®

Frequently Asked Questions (FAQ)

Q1: Can I use AD8544ARUZ as a direct replacement for MCP6404-H/ST in all applications?

A: AD8544ARUZ is compatible with applications where the supply voltage range is 2.7 V to 5.5 V and the operating temperature does not exceed 125°C. The MCP6404-H/ST supports supply voltages as low as 1.8 V and operating temperatures up to 150°C. If your application requires operation below 2.7 V supply or above 125°C, AD8544ARUZ is not suitable. All other electrical parameters (4 circuits, rail-to-rail output, 14-TSSOP package, slew rate, bandwidth) are compatible or superior.

Q2: What is the key difference between ISL28413FVZ and MCP6404-H/ST?

A: ISL28413FVZ provides superior performance in slew rate (1 V/µs vs. 0.5 V/µs) and gain bandwidth product (2 MHz vs. 1 MHz). Both devices support the same 1.8 V minimum supply voltage. The primary limitation is that ISL28413FVZ operates only to 125°C maximum, while MCP6404-H/ST operates to 150°C. ISL28413FVZ also has higher supply current consumption (90 µA vs. 45 µA for 4 channels).

Q3: Why do LMV324 variants have higher output current capability than MCP6404-H/ST?

A: The LMV324 family is designed for applications requiring higher output drive capability. LMV324IPWR provides 40 mA per channel, while LMV324MT/NOPB and related variants provide 160 mA per channel, compared to 15 mA for MCP6404-H/ST. This increased output current capability comes with higher supply current consumption. Select LMV324 variants only if your application requires this additional output drive capability.

Q4: What does MSL (Moisture Sensitivity Level) mean for component substitution?

A: MSL indicates the maximum time a component can be exposed to moisture before soldering. MCP6404-H/ST has MSL 1 (Unlimited), meaning no time restriction. AD8544ARUZ has MSL 1 (Unlimited). ISL28413FVZ has MSL 2 (1 Year), meaning the component must be soldered within 1 year of opening the package. LMV324DTBR2G has MSL 3 (168 Hours), the most restrictive. If your manufacturing process has extended storage times, select components with lower MSL ratings.

Q5: Can I use LMV324DTBR2G, which is classified as Voltage Feedback, instead of MCP6404-H/ST, which is General Purpose?

A: LMV324DTBR2G meets all mandatory physical and electrical compatibility criteria (4 circuits, rail-to-rail output, 14-TSSOP package, compatible supply voltage and temperature ranges within limits). The Voltage Feedback classification indicates the amplifier topology. Both topologies are suitable for general-purpose applications. However, verify that your specific circuit design is compatible with voltage feedback topology before substitution.

Q6: Which substitute part has the lowest power consumption?

A: AD8544ARUZ and MCP6404-H/ST both have supply current of 45 µA for 4 channels, the lowest among all listed substitutes. ISL28413FVZ consumes 90 µA, LMV324LIPT consumes 130 µA, LMV324IPWR and LMV324MT/NOPB consume 410 µA, and LMV324DTBR2G consumes 100 µA. For battery-powered or low-power applications, AD8544ARUZ is the preferred substitute.

Q7: What is the difference between AD8544ARUZ and AD8544ARUZ-REEL?

A: Both parts have identical electrical specifications. The difference is in packaging format: AD8544ARUZ is supplied in Tube packaging, while AD8544ARUZ-REEL is supplied in Cut Tape (CT) & Digi-Reel® format. Select based on your manufacturing equipment compatibility and inventory management requirements.

Q8: Are automotive-grade variants (LMV324Q1MTX/NOPB, LMV324Q3MT/NOPB) suitable for non-automotive applications?

A: Yes. Automotive-grade variants meet AEC-Q100 qualification, which includes additional reliability and testing requirements. These parts are suitable for any application and provide enhanced reliability. The primary consideration is cost, as automotive-grade components typically have higher pricing. Use automotive-grade variants if your application requires enhanced reliability or if they are already specified in your design.

Q9: What is the maximum operating temperature for each substitute?

A: MCP6404-H/ST: 150°C. AD8544ARUZ: 125°C. ISL28413FVZ: 125°C. LMV324IPWR: 125°C. LMV324LIPT: 125°C. LMV324MT/NOPB: 125°C. LMV324MTX/NOPB: 125°C. LMV324Q1MTX/NOPB: 125°C. LMV324Q3MT/NOPB: 85°C. LMV324DTBR2G: 85°C. If your application requires operation above 125°C, only MCP6404-H/ST is suitable.

Q10: Which substitute has the best input offset voltage specification?

A: ISL28413FVZ has the best (lowest) input offset voltage at 500 µV, followed by MCP6404-H/ST at 800 µV. AD8544ARUZ and LMV324LIPT both specify 1 mV. LMV324IPWR and LMV324MT/NOPB specify 1.7 mV. LMV324DTBR2G specifies 1.7 mV. For applications requiring minimal DC offset, ISL28413FVZ is the preferred substitute.

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