MAX419CPD Equivalent & Substitute Parts

Part Overview

The MAX419CPD 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 supply voltage range of 2.5V to 10V and operates across 0°C to 70°C. The MAX419CPD is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through matching package type, circuit count, output configuration, and electrical operating parameters.

Substiute Parts

MAX419CPD

Analog Devices Inc./Maxim IntegratedIn Stock: 2054MAX419CPD Datasheet

Current PartRFQ

OP491GPZ

Analog Devices Inc.In Stock: 3216OP491GPZ Datasheet

MFR RecommendedRFQ

TL974IN

Texas InstrumentsIn Stock: 1242TL974IN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX419CPD are selected based on strict compatibility criteria. All substitute parts must satisfy the following mandatory parameters:

• Circuit Configuration: Four independent operational amplifier circuits
• Output Configuration: Rail-to-rail output capability
• Package Type: 14-DIP through-hole package with 0.300" (7.62mm) pitch
• Mounting Method: Through-hole technology for PCB assembly compatibility
• Supply Voltage Compatibility: Minimum supply voltage must not exceed the MAX419CPD minimum (2.5V), and maximum supply voltage must accommodate the MAX419CPD maximum (10V)

The identified substitute parts OP491GPZ and TL974IN meet these core compatibility requirements. Both devices provide four general purpose amplifier circuits in identical 14-PDIP packaging, enabling direct functional replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

OP491GPZ is an active product manufactured by Analog Devices Inc. with ROHS3 compliance. This substitute maintains the same manufacturer lineage as the MAX419CPD and provides enhanced performance characteristics including improved slew rate (0.5V/µs versus 0.08V/µs) and significantly higher gain bandwidth product (3 MHz versus 150 kHz). The OP491GPZ operates across an extended temperature range (-40°C to 125°C) and features superior input offset voltage (80 µV versus 1 mV). Supply voltage compatibility is maintained with minimum 2.7V and maximum 12V ratings, accommodating the MAX419CPD operating envelope.

TL974IN is an active product manufactured by Texas Instruments with ROHS3 compliance. This substitute offers the highest performance specifications among available options, with slew rate of 5V/µs and gain bandwidth product of 12 MHz. The TL974IN provides maximum output current capability (80 mA per channel) and operates across the extended temperature range (-40°C to 125°C). Supply voltage compatibility is identical to the OP491GPZ (2.7V to 12V minimum/maximum).

Both substitute parts are active products with current manufacturing status and modern compliance certifications, addressing the obsolescence of the MAX419CPD. Selection between OP491GPZ and TL974IN depends on application-specific performance requirements, with TL974IN providing superior dynamic performance characteristics and OP491GPZ offering a balance between performance enhancement and supply current efficiency.

Frequently Asked Questions (FAQ)

Q: Can MAX419CPD be directly replaced with OP491GPZ or TL974IN in existing PCB designs?

A: Yes. Both substitute parts are packaged in identical 14-DIP through-hole configuration with matching pin pitch (0.300", 7.62mm). Pin-for-pin compatibility is maintained for all four operational amplifier circuits. No PCB layout modifications are required for physical installation.

Q: What are the key electrical differences between MAX419CPD and its substitutes?

A: The primary differences are performance-related. OP491GPZ and TL974IN provide higher slew rates and gain bandwidth products compared to MAX419CPD. OP491GPZ offers 0.5V/µs slew rate and 3 MHz bandwidth, while TL974IN provides 5V/µs slew rate and 12 MHz bandwidth. Both substitutes feature lower input offset voltage and higher output current capability per channel. Supply current consumption is higher in both substitutes.

Q: Are the substitute parts compatible with the MAX419CPD supply voltage range?

A: The MAX419CPD operates from 2.5V to 10V. Both OP491GPZ and TL974IN operate from 2.7V to 12V minimum and maximum respectively. The 2.7V minimum specification of the substitutes is slightly higher than the MAX419CPD 2.5V minimum. Applications requiring operation below 2.7V require verification of substitute part suitability. The 12V maximum rating of both substitutes exceeds the MAX419CPD 10V maximum, providing additional design margin.

Q: What is the operating temperature difference between MAX419CPD and substitute parts?

A: MAX419CPD operates from 0°C to 70°C. Both OP491GPZ and TL974IN operate from -40°C to 125°C. The substitutes provide extended temperature range capability, enabling use in applications requiring operation outside the MAX419CPD temperature envelope.

Q: Do the substitute parts have the same RoHS compliance status as MAX419CPD?

A: No. MAX419CPD is RoHS non-compliant. Both OP491GPZ and TL974IN are ROHS3 compliant, meeting current environmental and regulatory requirements for new product designs and manufacturing.

Q: Which substitute part should be selected for high-speed applications?

A: TL974IN is the appropriate selection for applications requiring maximum dynamic performance. With 5V/µs slew rate and 12 MHz gain bandwidth product, TL974IN provides the highest performance specifications. OP491GPZ offers intermediate performance with 0.5V/µs slew rate and 3 MHz bandwidth, suitable for general purpose applications requiring improved performance over MAX419CPD.

Q: Are there any supply current considerations when substituting MAX419CPD?

A: Yes. MAX419CPD draws 1µA total supply current across four channels. OP491GPZ draws 260µA total supply current, and TL974IN draws 2mA total supply current. Applications with strict power consumption requirements must account for this increased current draw in the substitute parts.