MAX4495ASD Equivalent & Substitute Parts

Part Overview

The MAX4495ASD is a general-purpose operational amplifier integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device features four independent amplifier circuits in a 14-SOIC surface-mount package with rail-to-rail output capability. The MAX4495ASD is currently classified as obsolete, which necessitates identification of functionally equivalent substitute components for ongoing design support and procurement continuity. Active alternatives with comparable electrical characteristics and identical packaging are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Slew Rate	3	V/µs
Gain Bandwidth Product	5	MHz
Current - Input Bias	200	nA
Voltage - Input Offset	300	µV
Current - Supply (x4 Channels)	770	µA
Current - Output / Channel	15	mA
Voltage - Supply Span (Min)	4.5	V
Voltage - Supply Span (Max)	11	V
Operating Temperature	-40 to 125	°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 components for the MAX4495ASD are selected based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Primary Compatibility Criteria:

Number of Circuits: Must equal 4
Output Type: Must be Rail-to-Rail
Package / Case: Must be 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Must be Surface Mount
Operating Temperature Range: Must encompass -40°C to 125°C minimum

Secondary Performance Parameters:

Slew Rate: 3 V/µs or greater
Gain Bandwidth Product: 5 MHz or greater
Voltage - Supply Span: Must accommodate 4.5 V minimum to 11 V maximum
Current - Supply: Total supply current across all channels
Current - Output / Channel: Minimum 15 mA per channel

Substitutes are grouped into two categories: direct replacements (identical electrical specifications) and functional equivalents (meeting or exceeding all critical parameters within the same package).

Parameter Comparison

Part Number	Manufacturer	Product Status	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (µA)	Output Current (mA)	Supply Span Min (V)	Supply Span Max (V)	Temp Range (°C)	Package
MAX4495ASD	Analog Devices / Maxim	Obsolete	3	5	200	300	770	15	4.5	11	-40 to 125	14-SOIC
MAX4495ASD+	Analog Devices / Maxim	Active	3	5	200	300	770	15	4.5	11	-40 to 125	14-SOIC
MCP6H74-E/SL	Microchip Technology	Active	2	2.7	0.01	1000	480	53	3.5	12	-40 to 125	14-SOIC
MCP6H74T-E/SL	Microchip Technology	Active	2	2.7	0.01	1000	480	53	3.5	12	-40 to 125	14-SOIC
MCP6H94-E/SL	Microchip Technology	Active	10	10	0.01	1000	2000	41	3.5	12	-40 to 125	14-SOIC
MCP6H94T-E/SL	Microchip Technology	Active	10	10	0.01	1000	2000	41	3.5	12	-40 to 125	14-SOIC
OP462GSZ	Analog Devices	Active	13	15	260	25	550	30	2.7	12	-40 to 125	14-SOIC
OP462GSZ-REEL	Analog Devices	Active	13	15	260	25	550	30	2.7	12	-40 to 125	14-SOIC
OP462GSZ-REEL7	Analog Devices	Active	13	15	260	25	550	30	2.7	12	-40 to 125	14-SOIC
OPA4743UA	Burr Brown	Active	10	7	0.001	1500	1100	20	3.5	12	-40 to 85	14-SOIC
OPA4743UA/2K5	Texas Instruments	Active	10	7	0.001	1500	1100	20	3.5	12	-40 to 85	14-SOIC

Engineering Selection Recommendations

Direct Replacement (Identical Electrical Specifications):

The MAX4495ASD+ is the direct active equivalent of the obsolete MAX4495ASD. Both devices share identical electrical characteristics, including slew rate (3 V/µs), gain bandwidth product (5 MHz), input bias current (200 nA), and supply voltage range (4.5 V to 11 V). The MAX4495ASD+ is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. This component is the preferred substitute when electrical specifications must remain unchanged.

Functional Equivalents with Enhanced Performance:

The OP462GSZ, OP462GSZ-REEL, and OP462GSZ-REEL7 (all Analog Devices manufacture) exceed the MAX4495ASD specifications across multiple parameters: slew rate (13 V/µs versus 3 V/µs), gain bandwidth product (15 MHz versus 5 MHz), and output current per channel (30 mA versus 15 mA). These devices maintain the same 14-SOIC package, rail-to-rail output, and operating temperature range. The lower minimum supply voltage (2.7 V versus 4.5 V) provides additional design flexibility. All three variants are in active production with ROHS3 compliance.

Microchip MCP6H Series Alternatives:

The MCP6H74-E/SL and MCP6H74T-E/SL offer lower supply current (480 µA versus 770 µA) and superior input bias current performance (10 pA versus 200 nA), making them suitable for low-power applications. The MCP6H94-E/SL and MCP6H94T-E/SL provide higher slew rate (10 V/µs) and gain bandwidth product (10 MHz) while maintaining the same package and temperature range. All MCP6H variants are in active production with ROHS3 compliance.

CMOS Alternative:

The OPA4743UA/2K5 (Texas Instruments) is a CMOS-based four-channel amplifier with extremely low input bias current (1 pA) and slew rate of 10 V/µs. This device is suitable for applications requiring minimal input current. The operating temperature range is limited to -40°C to 85°C, which may restrict use in extended temperature applications. ROHS3 compliance and unlimited moisture sensitivity rating are confirmed.

Selection Criteria by Application:

Pin-compatible replacement with identical performance: MAX4495ASD+
Enhanced performance with lower supply voltage: OP462GSZ series
Low-power operation: MCP6H74 series
High-speed operation: MCP6H94 series or OP462GSZ series
Ultra-low input bias current: OPA4743UA/2K5

All recommended substitutes are available in 14-SOIC surface-mount packaging and support the full -40°C to 125°C operating temperature range, with the exception of OPA4743UA/2K5 which is limited to -40°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can MAX4495ASD+ be used as a direct replacement for MAX4495ASD?

A: Yes. The MAX4495ASD+ is electrically identical to the MAX4495ASD across all specified parameters: slew rate, gain bandwidth product, input bias current, input offset voltage, supply current, output current, and supply voltage range. Both devices use the 14-SOIC package. The primary difference is product status: MAX4495ASD+ is in active production while MAX4495ASD is obsolete.

Q: What are the key differences between OP462GSZ and MAX4495ASD?

A: The OP462GSZ exceeds MAX4495ASD specifications in three critical areas: slew rate (13 V/µs versus 3 V/µs), gain bandwidth product (15 MHz versus 5 MHz), and output current per channel (30 mA versus 15 mA). The OP462GSZ also operates at lower minimum supply voltage (2.7 V versus 4.5 V). Both devices share identical 14-SOIC packaging and -40°C to 125°C operating temperature range. The OP462GSZ is suitable for applications requiring higher speed and output drive capability.

Q: Are MCP6H74 and MCP6H94 interchangeable?

A: Both MCP6H74 and MCP6H94 are four-channel rail-to-rail amplifiers in 14-SOIC packaging with identical supply voltage ranges (3.5 V to 12 V) and operating temperature (-40°C to 125°C). However, they differ in performance: MCP6H94 provides higher slew rate (10 V/µs versus 2 V/µs) and gain bandwidth product (10 MHz versus 2.7 MHz). Selection depends on application speed requirements. MCP6H74 is preferred for low-power designs; MCP6H94 is preferred for higher-speed applications.

Q: What is the difference between OP462GSZ-REEL and OP462GSZ-REEL7?

A: Both OP462GSZ-REEL and OP462GSZ-REEL7 are identical in electrical specifications and 14-SOIC packaging. The designation difference refers to reel configuration for automated assembly. OP462GSZ-REEL7 specifies a 7-inch reel format, while OP462GSZ-REEL uses standard reel packaging. Electrical performance and compatibility are identical.

Q: Can OPA4743UA/2K5 replace MAX4495ASD in all applications?

A: OPA4743UA/2K5 is electrically compatible in 14-SOIC packaging and shares rail-to-rail output capability. However, the operating temperature range is limited to -40°C to 85°C, compared to MAX4495ASD's -40°C to 125°C. This restriction may prevent use in applications requiring extended high-temperature operation above 85°C. Verify temperature requirements before substitution.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in three packaging formats: Tube (standard packaging), Tape & Reel (TR) for automated assembly, and Bulk. All variants maintain the same 14-SOIC physical package dimensions (0.154" width, 3.90mm). Selection of packaging format depends on assembly method and procurement volume requirements. Electrical specifications remain identical across all packaging options for the same base part number.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitute parts listed are ROHS3 compliant. Compliance status is confirmed for MAX4495ASD+, MCP6H74-E/SL, MCP6H74T-E/SL, MCP6H94-E/SL, MCP6H94T-E/SL, OP462GSZ, OP462GSZ-REEL, OP462GSZ-REEL7, and OPA4743UA/2K5. This ensures compatibility with environmental and regulatory requirements for lead-free manufacturing.

Q: What is the moisture sensitivity level for substitute parts?

A: Most substitute parts carry Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control. MCP6H94T-E/SL carries MSL 3 (168 hours), requiring moisture control during storage and handling. Verify MSL requirements for your specific assembly process and storage conditions.

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