MAX4169ESD+ Equivalent & Substitute Parts Reference

Part Overview

The MAX4169ESD+ is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. Manufactured by Analog Devices Inc./Maxim Integrated, this device provides rail-to-rail output capability with a 5 MHz gain-bandwidth product and operates across a 2.7 V to 6.5 V supply range. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. Substitute parts must maintain functional compatibility through matching package type, circuit count, output configuration, and electrical performance within acceptable operating parameters.

Key Parameters

Parameter	MAX4169ESD+	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	Circuits
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—
Slew Rate	2	V/µs
Gain Bandwidth Product	5	MHz
Current - Input Bias	50	nA
Voltage - Input Offset	250	µV
Current - Supply (x4 Channels)	1.3	mA
Current - Output / Channel	125	mA
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	6.5	V
Operating Temperature	-40 to 85	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution compatibility for the MAX4169ESD+ is determined by the following critical parameters:

Package Compatibility: All substitute parts must use the 14-SOIC (0.154", 3.90mm Width) surface-mount package to ensure direct PCB layout compatibility without redesign.

Circuit Configuration: Four independent amplifier circuits are required to maintain functional equivalence in multi-channel applications.

Output Configuration: Rail-to-rail output capability is essential for applications requiring maximum signal swing within the supply voltage range.

Electrical Performance Envelope: Substitute parts must operate within the supply voltage range of 2.7 V minimum to 6.5 V maximum. Slew rate, gain-bandwidth product, input bias current, and input offset voltage define the performance class. Parts with superior specifications (higher slew rate, lower input bias current, lower offset voltage) are acceptable substitutes. Parts with lower maximum supply voltage (5.5 V) are acceptable for applications not requiring the full 6.5 V capability.

Temperature Range: Operating temperature range of -40°C to 85°C is the baseline requirement. Parts with extended temperature ranges (-40°C to 125°C) are acceptable substitutes.

Compliance & Status: Active product status is preferred for long-term availability. RoHS3 compliance and MSL rating of 1 are standard requirements.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Output Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Input Offset (µV)	Supply Current (mA)	Output Current (mA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Status
MAX4169ESD+	Analog Devices	General Purpose	4	Rail-to-Rail	2	5	50	250	1.3	125	2.7	6.5	-40 to 85	Obsolete
AD8604ARZ	Analog Devices	CMOS	4	Rail-to-Rail	6	8.4	0.0002	80	0.75	50	2.7	5.5	-40 to 125	Active
AD8604ARZ-REEL	Analog Devices	CMOS	4	Rail-to-Rail	6	8.4	0.0002	80	0.75	50	2.7	5.5	-40 to 125	Active
AD8604ARZ-REEL7	Analog Devices	CMOS	4	Rail-to-Rail	6	8.4	0.0002	80	0.75	50	2.7	5.5	-40 to 125	Active
LMV824DR2G	onsemi	General Purpose	4	Rail-to-Rail	2	5.6	119	1000	1	45	2.7	5.5	-40 to 85	Active
LMV824M/NOPB	Texas Instruments	General Purpose	4	Rail-to-Rail	2	5.6	40	1000	1	45	2.5	5.5	-40 to 85	Active
LMV824MX/NOPB	National Semiconductor	General Purpose	4	Rail-to-Rail	2	5.6	40	1000	1	45	2.5	5.5	-40 to 85	Active
LMV824Q1MAX/NOPB	Texas Instruments	General Purpose	4	Rail-to-Rail	1.4	5.6	40	1000	1	45	2.5	5.5	-40 to 125	Active
MC33204DR2G	onsemi	General Purpose	4	Rail-to-Rail	1	2.2	80	10000	0.9	80	1.8	12	-40 to 105	Active
MCP6284-E/SL	Microchip Technology	General Purpose	4	Rail-to-Rail	2.5	5	0.001	3000	0.45	25	2.2	5.5	-40 to 125	Active
MCP6284T-E/SL	Microchip Technology	General Purpose	4	Rail-to-Rail	2.5	5	0.001	3000	0.45	25	2.2	5.5	-40 to 125	Active

Engineering Selection Recommendations

Primary Substitute (Manufacturer Recommended): The AD8604ARZ series (AD8604ARZ, AD8604ARZ-REEL, AD8604ARZ-REEL7) represents the manufacturer-recommended substitute from Analog Devices Inc. These CMOS amplifiers provide superior electrical performance with higher slew rate (6 V/µs), higher gain-bandwidth product (8.4 MHz), and significantly lower input bias current (0.2 pA). Extended operating temperature range (-40°C to 125°C) and active product status ensure long-term availability. The reduced supply current (0.75 mA) offers power efficiency benefits. Note: Maximum supply voltage is 5.5 V, limiting use in applications requiring the full 6.5 V capability of the MAX4169ESD+.

General Purpose Alternatives: The LMV824 family (LMV824M/NOPB, LMV824MX/NOPB, LMV824DR2G) maintains electrical performance characteristics closely aligned with the MAX4169ESD+, including 2 V/µs slew rate and 5.6 MHz gain-bandwidth product. These parts are active and widely available. The LMV824Q1MAX/NOPB variant includes automotive-grade qualification (AEC-Q100) and extended temperature range (-40°C to 125°C) for demanding applications.

Low-Power Alternative: The MCP6284-E/SL and MCP6284T-E/SL from Microchip Technology offer the lowest supply current consumption (0.45 mA) with comparable gain-bandwidth product (5 MHz). Extended temperature range (-40°C to 125°C) and high inventory availability support production continuity. These parts are suitable for power-constrained applications.

Extended Supply Range: The MC33204DR2G from onsemi supports the widest supply voltage range (1.8 V to 12 V), accommodating applications beyond the MAX4169ESD+ specification. However, lower gain-bandwidth product (2.2 MHz) and higher input offset voltage (10 mV) indicate reduced precision performance.

Compliance Status: All recommended substitutes maintain RoHS3 compliance and MSL rating of 1 (unlimited moisture sensitivity). All parts are classified as active products with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can AD8604ARZ directly replace MAX4169ESD+ in all applications?

A: AD8604ARZ is electrically compatible for most applications due to matching package, circuit count, and rail-to-rail output. However, the maximum supply voltage is 5.5 V versus 6.5 V for MAX4169ESD+. Verify that your application does not require operation above 5.5 V. The AD8604ARZ offers superior performance (higher slew rate, lower input bias current) and is the manufacturer-recommended substitute.

Q: What is the difference between AD8604ARZ, AD8604ARZ-REEL, and AD8604ARZ-REEL7?

A: These part numbers represent the same die and electrical specifications but differ in packaging format. AD8604ARZ is supplied in tube packaging. AD8604ARZ-REEL and AD8604ARZ-REEL7 are supplied on cut tape with Digi-Reel® for automated assembly. Select based on your procurement and assembly process requirements. Electrical performance is identical.

Q: Why do some substitutes have lower output current capability?

A: Output current capability varies by design. AD8604ARZ provides 50 mA per channel versus 125 mA for MAX4169ESD+. MCP6284 provides 25 mA per channel. Verify that your application load current does not exceed the substitute part's rated output current. If higher output current is required, select alternatives such as MC33204DR2G (80 mA) or LMV824 variants (45 mA).

Q: Is the LMV824 family suitable for high-speed applications?

A: LMV824 variants maintain 2 V/µs slew rate and 5.6 MHz gain-bandwidth product, matching the MAX4169ESD+ performance class. These specifications are appropriate for general-purpose and audio applications. For applications requiring higher slew rate or bandwidth, AD8604ARZ (6 V/µs, 8.4 MHz) is recommended.

Q: Can I use MCP6284 in place of MAX4169ESD+ for precision applications?

A: MCP6284 is suitable for precision applications due to extremely low input bias current (1 pA) and low supply current (0.45 mA). However, input offset voltage is 3 mV versus 250 µV for MAX4169ESD+, indicating lower precision. Evaluate offset voltage requirements for your specific application. Extended temperature range (-40°C to 125°C) supports demanding environments.

Q: What is the significance of AEC-Q100 qualification on LMV824Q1MAX/NOPB?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. This variant is suitable for automotive and mission-critical applications requiring enhanced reliability documentation. Standard LMV824 variants (LMV824M/NOPB, LMV824MX/NOPB) are suitable for industrial and consumer applications.

Q: Why is MC33204DR2G listed as a substitute if it has lower gain-bandwidth product?

A: MC33204DR2G is included as a substitute option for applications requiring extended supply voltage range (1.8 V to 12 V) beyond MAX4169ESD+ specification (2.7 V to 6.5 V). The lower gain-bandwidth product (2.2 MHz) and higher input offset voltage (10 mV) make it suitable only for applications where extended supply range is critical and performance requirements are less stringent.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts listed maintain RoHS3 compliance and are suitable for applications requiring lead-free and restricted substance compliance.

Q: What packaging options are available for production quantities?

A: Tube packaging is available for AD8604ARZ, LMV824M/NOPB, and MCP6284-E/SL. Cut tape with Digi-Reel® is available for AD8604ARZ-REEL, AD8604ARZ-REEL7, LMV824DR2G, MC33204DR2G, and MCP6284T-E/SL. Select packaging based on your assembly process and volume requirements.

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