MAX475CPD Equivalent & Substitute Parts Reference

Part Overview

The MAX475CPD is a general purpose operational amplifier featuring four independent circuits in a 14-PDIP through-hole package. Manufactured by Analog Devices Inc./Maxim Integrated, this device provides rail-to-rail output capability with a 12 MHz gain bandwidth product and 17 V/µs slew rate, suitable for low-voltage analog signal processing applications.

The MAX475CPD is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, maintenance operations, and system redesigns where component availability is constrained.

Key Parameters

Parameter	Value
Manufacturer Part Number	MAX475CPD
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Linear, Amplifiers
Product Status	Obsolete
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	Rail-to-Rail
Package / Case	14-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Slew Rate	17 V/µs
Gain Bandwidth Product	12 MHz
Current - Input Bias	80 nA
Voltage - Input Offset	800 µV
Current - Supply	2 mA (x4 Channels)
Voltage - Supply Span (Min)	2.7 V
Voltage - Supply Span (Max)	5.25 V
Operating Temperature	0°C ~ 70°C
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX475CPD is determined by the following critical parameters that must be maintained or exceeded:

Functional Requirements:

Four independent operational amplifier circuits
Rail-to-rail output capability
14-PDIP through-hole package configuration
General purpose amplifier topology

Electrical Compatibility Criteria:

Supply voltage range must encompass the original 2.7 V to 5.25 V specification
Slew rate and gain bandwidth product establish performance boundaries
Input bias current and input offset voltage define signal integrity characteristics
Output current per channel must support the application load

Physical Compatibility:

Package type: 14-DIP (0.300", 7.62mm)
Mounting type: Through Hole
Pin configuration must be functionally equivalent

The substitute parts listed below satisfy these core requirements while offering improvements in product status, compliance certifications, or extended operating temperature ranges.

Parameter Comparison

Parameter	MAX475CPD	MCP6294-E/P	TLV2774AIN	TLV2774CN	TLV2774IN
Manufacturer	Analog Devices Inc./Maxim Integrated	Microchip Technology	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Last Time Buy	Last Time Buy	Last Time Buy
Amplifier Type	General Purpose	General Purpose	CMOS	CMOS	CMOS
Number of Circuits	4	4	4	4	4
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)	14-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Slew Rate	17 V/µs	7 V/µs	10.5 V/µs	10.5 V/µs	10.5 V/µs
Gain Bandwidth Product	12 MHz	10 MHz	5.1 MHz	5.1 MHz	5.1 MHz
Current - Input Bias	80 nA	1 pA	2 pA	2 pA	2 pA
Voltage - Input Offset	800 µV	3 mV	700 µV	700 µV	700 µV
Current - Supply	2 mA (x4 Channels)	1 mA (x4 Channels)	1 mA (x4 Channels)	1 mA (x4 Channels)	1 mA (x4 Channels)
Current - Output / Channel	Not specified	25 mA	50 mA	50 mA	50 mA
Voltage - Supply Span (Min)	2.7 V	2.4 V	2.5 V	2.5 V	2.5 V
Voltage - Supply Span (Max)	5.25 V	6 V	5.5 V	5.5 V	5.5 V
Operating Temperature	0°C ~ 70°C	-40°C ~ 125°C (TA)	-40°C ~ 125°C (TA)	0°C ~ 70°C (TA)	-40°C ~ 125°C (TA)
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

MCP6294-E/P (Microchip Technology)

The MCP6294-E/P is classified as an active product, providing the longest product lifecycle support among available substitutes. This device maintains full supply voltage compatibility with the MAX475CPD and offers ROHS3 compliance. The MCP6294-E/P features extended operating temperature range (-40°C to 125°C) and reduced supply current consumption (1 mA per channel versus 2 mA). The slew rate of 7 V/µs and gain bandwidth product of 10 MHz remain within acceptable performance boundaries for general purpose amplifier applications. Output current capability of 25 mA per channel supports standard load requirements.

TLV2774AIN (Texas Instruments)

The TLV2774AIN is a CMOS amplifier with last-time-buy product status. This device provides extended operating temperature range (-40°C to 125°C) and ROHS3 compliance. The TLV2774AIN demonstrates superior input bias current characteristics (2 pA) and maintains input offset voltage within 700 µV. Output current per channel reaches 50 mA, exceeding typical application requirements. Supply voltage range encompasses the MAX475CPD specification. Moisture sensitivity level is not applicable for this CMOS device.

TLV2774CN (Texas Instruments)

The TLV2774CN is a CMOS amplifier with last-time-buy product status and operating temperature range matching the MAX475CPD (0°C to 70°C). This device offers ROHS3 compliance and identical electrical performance to the TLV2774AIN variant. The TLV2774CN is suitable for applications where extended temperature operation is not required. Moisture sensitivity level is not applicable.

TLV2774IN (Texas Instruments)

The TLV2774IN is a CMOS amplifier with last-time-buy product status and extended operating temperature range (-40°C to 125°C). This device provides ROHS3 compliance and identical electrical performance to the TLV2774AIN. The TLV2774IN is suitable for applications requiring extended temperature operation. Moisture sensitivity level is not applicable.

Selection Criteria Summary:

For new designs or long-term production support, the MCP6294-E/P is recommended due to active product status. For existing inventory management or near-term applications, the TLV2774 series (AIN, CN, or IN variants) provides functional equivalence with ROHS3 compliance. Temperature range requirements determine selection between TLV2774CN (0°C to 70°C) and TLV2774AIN or TLV2774IN (-40°C to 125°C).

Frequently Asked Questions (FAQ)

Q: Can the MCP6294-E/P directly replace the MAX475CPD in existing PCB designs?

A: Yes. The MCP6294-E/P maintains identical 14-DIP through-hole package configuration and pin-compatible functionality. Supply voltage range (2.4 V to 6 V) encompasses the MAX475CPD specification (2.7 V to 5.25 V). No PCB modifications are required.

Q: What is the primary difference between TLV2774CN and TLV2774AIN?

A: The operating temperature range differs. TLV2774CN operates from 0°C to 70°C, matching the MAX475CPD specification. TLV2774AIN operates from -40°C to 125°C, providing extended temperature capability. All other electrical parameters are identical.

Q: Why does the MCP6294-E/P have lower slew rate (7 V/µs) compared to the MAX475CPD (17 V/µs)?

A: The MCP6294-E/P is optimized for low-power operation (1 mA supply current versus 2 mA) while maintaining adequate performance for general purpose amplifier applications. Applications requiring the original 17 V/µs slew rate should be evaluated against actual circuit requirements.

Q: Are all substitute parts RoHS compliant?

A: The MCP6294-E/P and all TLV2774 variants are ROHS3 compliant. The original MAX475CPD is RoHS non-compliant. Substitution with any listed part introduces RoHS compliance into the design.

Q: What is the significance of "Last Time Buy" product status for the TLV2774 series?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for these devices. Customers may place final orders during a specified window before production ceases. The MCP6294-E/P, classified as active, has no announced end-of-life date.

Q: Can the TLV2774 series be used in applications requiring the full 0°C to 70°C operating range?

A: Yes. The TLV2774CN is rated for 0°C to 70°C operation, matching the MAX475CPD specification. The TLV2774AIN and TLV2774IN exceed this requirement with -40°C to 125°C capability.

Q: What is the impact of reduced input bias current in substitute parts?

A: The substitute parts feature significantly lower input bias current (1-2 pA versus 80 nA). This improvement reduces input offset current errors and is beneficial for high-impedance signal sources. Applications designed for the MAX475CPD input bias current will experience improved performance.

Q: Are there any moisture sensitivity considerations when substituting parts?

A: The MAX475CPD and MCP6294-E/P both have MSL 1 (Unlimited) rating. The TLV2774 series (CMOS devices) have not applicable moisture sensitivity levels. All parts are suitable for standard PCB assembly and storage conditions.

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