MCP6404-H/SL Equivalent & Substitute Parts

Part Overview

The MCP6404-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 low-power applications requiring minimal input bias current and offset voltage. The device maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits equivalent performance characteristics within the specified electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
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	—
Voltage - Supply Span (Min)	1.8	V
Voltage - Supply Span (Max)	6	V
Gain Bandwidth Product	1	MHz
Slew Rate	0.5	V/µs
Current - Supply	45	µA (x4 Channels)
Operating Temperature	-40 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the MCP6404-H/SL is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

Number of Circuits: 4
Output Type: Rail-to-Rail
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount
RoHS3 Compliance
Product Status: Active

Allowable Parameter Ranges for Substitution:

Voltage - Supply Span (Min): 1.8 V or lower
Voltage - Supply Span (Max): 6 V or higher
Gain Bandwidth Product: 1 MHz or higher
Slew Rate: 0.5 V/µs or higher
Current - Supply: 45 µA or lower per channel (preferred for low-power applications)
Operating Temperature: Must include -40°C minimum; upper limit may vary
Current - Input Bias: Lower values preferred but not mandatory
Voltage - Input Offset: Lower values preferred but not mandatory

All identified substitute parts meet the mandatory matching parameters and operate within the allowable ranges for electrical characteristics.

Parameter Comparison

Parameter	MCP6404-H/SL	AD8544ARZ	AD8544WARZ-R7	ISL28413FBZ-T7	LMV604MAX/NOPB	MAX4403ASD+	OPA4348AID
Manufacturer	Microchip Technology	Analog Devices Inc.	Analog Devices Inc.	Renesas Electronics	Texas Instruments	Analog Devices Inc./Maxim	Texas Instruments
Number of Circuits	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
Package / Case	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
Voltage - Supply Span (Min)	1.8 V	2.7 V	2.7 V	1.8 V	2.7 V	2.5 V	2.1 V
Voltage - Supply Span (Max)	6 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Gain Bandwidth Product	1 MHz	1 MHz	1 MHz	2 MHz	1 MHz	800 kHz	1 MHz
Slew Rate	0.5 V/µs	0.92 V/µs	0.92 V/µs	1 V/µs	1 V/µs	1 V/µs	0.5 V/µs
Current - Supply	45 µA (x4)	45 µA (x4)	45 µA (x4)	90 µA (x4)	100 µA (x4)	410 µA (x4)	45 µA (x4)
Current - Input Bias	1 pA	4 pA	4 pA	3 pA	0.02 pA	0.1 pA	0.5 pA
Voltage - Input Offset	800 µV	1 mV	1 mV	500 µV	550 µV	1 mV	1 mV
Current - Output / Channel	15 mA	30 mA	30 mA	22 mA	113 mA	30 mA	10 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	-40 to 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)
Packaging Type	Tube	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Tube

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

AD8544ARZ and AD8544WARZ-R7 (Analog Devices Inc.) are direct functional equivalents with identical circuit count, package, and supply current specifications. Both maintain ROHS3 compliance and MSL 1 rating. The primary distinction is packaging format: AD8544ARZ is supplied in Tube, while AD8544WARZ-R7 is supplied in Tape & Reel. Both operate within the allowable voltage range (2.7 V to 5.5 V), which is narrower than the MCP6404-H/SL but suitable for most standard applications. Operating temperature range extends to 125°C, which is lower than the MCP6404-H/SL maximum of 150°C.

OPA4348AID (Texas Instruments) matches the MCP6404-H/SL in circuit count, package, and supply current. This CMOS amplifier variant maintains identical gain bandwidth product and slew rate. ROHS3 compliance and MSL 2 rating are confirmed. Voltage supply range (2.1 V to 5.5 V) is narrower than the main part. Operating temperature maximum is 125°C.

Secondary Substitutes (Enhanced Performance):

ISL28413FBZ-T7 (Renesas Electronics Corporation) provides enhanced bandwidth (2 MHz versus 1 MHz) and improved slew rate (1 V/µs). Supply voltage minimum matches the MCP6404-H/SL at 1.8 V. Supply current is doubled (90 µA per channel). MSL 2 rating requires one-year shelf-life management. ROHS3 compliant.

LMV604MAX/NOPB (Texas Instruments) offers the highest output current capability (113 mA per channel) and lowest input bias current (0.02 pA). Gain bandwidth product and slew rate are enhanced (1 V/µs). Supply voltage range is 2.7 V to 5.5 V. Supply current is elevated (100 µA per channel). ROHS3 compliant with MSL 1 rating.

Alternative Substitute (Lower Performance):

MAX4403ASD+ (Analog Devices Inc./Maxim Integrated) operates with reduced gain bandwidth product (800 kHz) and significantly elevated supply current (410 µA per channel). This device is suitable only when output current capability (30 mA per channel) is prioritized and bandwidth constraints are acceptable. ROHS3 compliant with MSL 1 rating.

Selection Criteria Summary:

For direct replacement with minimal design changes: Select AD8544ARZ or AD8544WARZ-R7
For extended low-voltage operation (1.8 V minimum): Select ISL28413FBZ-T7
For maximum output current capability: Select LMV604MAX/NOPB
For lowest input bias current: Select LMV604MAX/NOPB
For identical supply current and bandwidth: Select OPA4348AID

All substitute parts maintain Active product status and full RoHS3 compliance. Packaging format selection (Tube versus Tape & Reel) depends on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q1: Can AD8544ARZ be used as a direct replacement for MCP6404-H/SL in all applications?

A: AD8544ARZ is functionally compatible for applications operating within the 2.7 V to 5.5 V supply range. The MCP6404-H/SL supports extended low-voltage operation down to 1.8 V, which AD8544ARZ does not. If your design operates below 2.7 V, AD8544ARZ is not suitable. Both devices share identical circuit count, package, and supply current specifications.

Q2: What is the difference between AD8544ARZ and AD8544WARZ-R7?

A: These devices are electrically identical. The primary difference is packaging format: AD8544ARZ is supplied in Tube packaging, while AD8544WARZ-R7 is supplied in Tape & Reel (TR) format. Selection depends on your assembly process requirements and procurement preferences.

Q3: Why does ISL28413FBZ-T7 have higher supply current than the MCP6404-H/SL?

A: ISL28413FBZ-T7 operates at 90 µA per channel (versus 45 µA for MCP6404-H/SL) to achieve enhanced performance characteristics: 2 MHz gain bandwidth product (versus 1 MHz) and 1 V/µs slew rate (versus 0.5 V/µs). This increased current consumption enables faster signal processing. Select this device only if your application requires the enhanced bandwidth and slew rate performance.

Q4: Is LMV604MAX/NOPB suitable for battery-powered applications?

A: LMV604MAX/NOPB operates at 100 µA per channel supply current, which is higher than the MCP6404-H/SL (45 µA). For ultra-low-power battery applications, MCP6404-H/SL or OPA4348AID are preferred. LMV604MAX/NOPB is suitable for battery applications where extended output current capability (113 mA per channel) justifies the increased quiescent current.

Q5: Can MAX4403ASD+ replace MCP6404-H/SL in high-frequency applications?

A: No. MAX4403ASD+ operates at 800 kHz gain bandwidth product, which is lower than the MCP6404-H/SL (1 MHz). This device is not suitable for applications requiring 1 MHz or higher bandwidth. MAX4403ASD+ is appropriate only for lower-frequency applications where its high output current capability (30 mA per channel) is required and bandwidth constraints are acceptable.

Q6: What is the significance of MSL (Moisture Sensitivity Level) ratings?

A: MSL 1 (Unlimited) indicates the device has no moisture sensitivity restrictions and can be stored indefinitely without special handling. MSL 2 (1 Year) requires that the device be used within one year of the manufacturing date if exposed to moisture. ISL28413FBZ-T7 and OPA4348AID carry MSL 2 ratings and require shelf-life management. All other substitutes carry MSL 1 ratings.

Q7: Which substitute part offers the lowest input offset voltage?

A: ISL28413FBZ-T7 provides the lowest input offset voltage at 500 µV, compared to 800 µV for the MCP6404-H/SL. LMV604MAX/NOPB offers 550 µV. For precision applications requiring minimal offset voltage, ISL28413FBZ-T7 is the optimal choice among the substitutes.

Q8: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 compliance, matching the environmental and regulatory status of the MCP6404-H/SL. All devices are also REACH Unaffected and carry EAR99 ECCN classification.

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

A: The MCP6404-H/SL operates to 150°C. All substitute parts operate to a maximum of 125°C. If your application requires operation above 125°C, the MCP6404-H/SL is the only suitable option among these parts.

Q10: Can I use OPA4348AID in place of MCP6404-H/SL for low-power applications?

A: Yes. OPA4348AID matches the MCP6404-H/SL in supply current (45 µA per channel), gain bandwidth product (1 MHz), and slew rate (0.5 V/µs). The primary limitation is the minimum supply voltage (2.1 V versus 1.8 V for MCP6404-H/SL). OPA4348AID is suitable for applications operating at 2.1 V or higher. Output current capability is lower (10 mA per channel versus 15 mA), which may be a constraint in high-load applications.

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