MAX4169EPD Equivalent & Substitute Parts Reference

Part Overview

The MAX4169EPD is a general-purpose operational amplifier featuring four independent circuits in a 14-pin DIP package, manufactured by Analog Devices Inc./Maxim Integrated. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MAX4169EPD delivers rail-to-rail output capability with a 5 MHz gain-bandwidth product, suitable for general-purpose amplification applications requiring low-power operation across a 2.7 V to 6.5 V supply range.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
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
Package / Case	14-DIP (0.300", 7.62mm)	—
Mounting Type	Through Hole	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MAX4169EPD is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Four independent amplifier circuits in single package
Rail-to-rail output configuration
14-pin DIP package (0.300", 7.62mm pitch)
Through-hole mounting type
Supply voltage range compatibility (minimum 2.7 V, maximum 6.5 V or higher)
Operating temperature range (minimum -40°C, maximum 85°C or higher)

Secondary Compatibility Parameters:

Gain-bandwidth product: 5 MHz or greater
Slew rate: 2 V/µs or greater
Input bias current: 50 nA or lower
Input offset voltage: 250 µV or lower
Output current per channel: 125 mA or greater

All substitute parts listed maintain identical package configuration and pinout compatibility. Electrical performance parameters of substitutes either match or exceed the MAX4169EPD specifications, ensuring functional equivalence in existing circuit designs.

Parameter Comparison

Parameter	MAX4169EPD	MCP6284-E/P	TLV2464AIN	TLV2464CN	TLV2464IN	TLV2774AIN	TLV2774CN	TLV2774IN
Manufacturer	Analog Devices	Microchip	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Circuits	4	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	Rail-to-Rail
Slew Rate (V/µs)	2	2.5	1.6	1.6	1.6	10.5	10.5	10.5
Gain Bandwidth Product (MHz)	5	5	6.4	6.4	6.4	5.1	5.1	5.1
Current - Input Bias (nA)	50	0.001	1.3	1.3	1.3	0.002	0.002	0.002
Voltage - Input Offset (µV)	250	3000	500	500	500	700	700	700
Current - Supply (mA, x4 Channels)	1.3	0.45	0.55	0.55	0.55	1	1	1
Current - Output / Channel (mA)	125	25	80	80	80	50	50	50
Voltage - Supply Span Min (V)	2.7	2.2	2.7	2.7	2.7	2.5	2.5	2.5
Voltage - Supply Span Max (V)	6.5	5.5	6	6	6	5.5	5.5	5.5
Operating Temperature (°C)	-40 to 85	-40 to 125	-40 to 125	0 to 70	-40 to 125	-40 to 125	0 to 70	-40 to 125
Package / Case	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP	14-DIP
Product Status	Obsolete	Active	Active	Active	Active	Last Time Buy	Last Time Buy	Last Time Buy
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MCP6284-E/P

The MCP6284-E/P from Microchip Technology is the preferred substitute for the obsolete MAX4169EPD. This device maintains full electrical and mechanical compatibility while offering active product status and ROHS3 compliance. The MCP6284-E/P provides superior input bias current performance (1 pA versus 50 nA) and reduced supply current consumption (450 µA versus 1.3 mA across four channels), making it suitable for power-sensitive applications. Extended operating temperature range (-40°C to 125°C) exceeds the original specification. The 14-DIP package and through-hole mounting configuration ensure direct board-level compatibility without redesign.

Secondary Recommendations: TLV2464 Series (Texas Instruments)

The TLV2464AIN and TLV2464IN variants provide active product status with ROHS3 compliance and extended temperature range (-40°C to 125°C). These devices deliver higher gain-bandwidth product (6.4 MHz) and improved input bias current (1.3 nA) compared to the MAX4169EPD. The TLV2464CN variant operates within the commercial temperature range (0°C to 70°C) and is suitable for non-extended-temperature applications. All TLV2464 variants maintain 14-DIP package compatibility and rail-to-rail output configuration.

Alternative Option: TLV2774 Series (Texas Instruments)

The TLV2774AIN and TLV2774IN variants employ CMOS amplifier architecture with significantly higher slew rate (10.5 V/µs) and lower input bias current (2 pA). These devices are classified as Last Time Buy status and offer ROHS3 compliance with extended temperature range (-40°C to 125°C). The TLV2774CN variant is restricted to commercial temperature operation (0°C to 70°C). CMOS architecture provides superior dynamic performance for applications requiring fast signal transients, though output current per channel (50 mA) is lower than the MAX4169EPD specification.

Compliance Considerations:

All recommended substitutes achieve ROHS3 compliance, addressing environmental and regulatory requirements absent in the original MAX4169EPD. Supply voltage range compatibility must be verified for applications operating at the upper limit (6.5 V), as MCP6284-E/P and TLV2774 variants are rated to 5.5 V maximum. Temperature range selection depends on application requirements: extended-range variants (-40°C to 125°C) provide maximum operational flexibility, while commercial-range variants (0°C to 70°C) are suitable for standard industrial environments.

Frequently Asked Questions (FAQ)

Q1: Can the MCP6284-E/P directly replace the MAX4169EPD without circuit modification?

A: Yes. The MCP6284-E/P maintains identical 14-DIP package configuration, pinout, and rail-to-rail output topology. Electrical parameters either match or exceed MAX4169EPD specifications. No circuit redesign is required for direct substitution in existing PCB layouts.

Q2: What is the key difference between TLV2464 and TLV2774 series substitutes?

A: The TLV2464 series employs general-purpose amplifier architecture with 1.6 V/µs slew rate and 6.4 MHz gain-bandwidth product. The TLV2774 series uses CMOS architecture with 10.5 V/µs slew rate and 5.1 MHz gain-bandwidth product. TLV2774 variants are optimized for applications requiring fast transient response, while TLV2464 variants provide higher gain-bandwidth product. Both maintain 14-DIP package compatibility.

Q3: Are there supply voltage limitations when substituting with MCP6284-E/P?

A: The MCP6284-E/P operates from 2.2 V to 5.5 V, compared to the MAX4169EPD range of 2.7 V to 6.5 V. Applications requiring operation above 5.5 V must use TLV2464 variants (rated to 6 V) or remain with the original MAX4169EPD. Minimum supply voltage is improved with MCP6284-E/P (2.2 V versus 2.7 V).

Q4: Which substitute is recommended for extended temperature applications?

A: MCP6284-E/P, TLV2464AIN, TLV2464IN, TLV2774AIN, and TLV2774IN all support -40°C to 125°C operating range, exceeding the MAX4169EPD specification of -40°C to 85°C. For commercial temperature applications (0°C to 70°C), TLV2464CN and TLV2774CN are suitable alternatives.

Q5: What is the significance of "Last Time Buy" status for TLV2774 variants?

A: Last Time Buy status indicates that Texas Instruments will discontinue these products after a specified date. While currently available, TLV2774 variants should be considered for new designs only if extended availability is not critical. MCP6284-E/P and TLV2464 series maintain active product status with indefinite availability.

Q6: How does power consumption compare between substitutes?

A: The MCP6284-E/P provides the lowest supply current at 450 µA (x4 channels), compared to MAX4169EPD at 1.3 mA. TLV2464 variants consume 550 µA, and TLV2774 variants consume 1 mA. For battery-powered or power-constrained applications, MCP6284-E/P is the optimal choice.

Q7: Are all substitutes RoHS compliant?

A: Yes. All recommended substitutes (MCP6284-E/P, TLV2464 series, TLV2774 series) achieve ROHS3 compliance. The original MAX4169EPD is RoHS non-compliant. Substitution addresses environmental and regulatory requirements for new production.

Q8: What output current capability should be considered when selecting a substitute?

A: The MAX4169EPD provides 125 mA per channel. MCP6284-E/P delivers 25 mA per channel, TLV2464 variants deliver 80 mA per channel, and TLV2774 variants deliver 50 mA per channel. Applications requiring the full 125 mA output current must use TLV2464 variants or retain the original device. Lower output current requirements are satisfied by all substitutes.

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