MAX419ESD Equivalent & Substitute Parts

Part Overview

The MAX419ESD 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 supply voltage range of 2.5V to 10V and operates across the industrial temperature range of -40°C to 85°C. The MAX419ESD is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	Rail-to-Rail
Slew Rate	0.08 V/µs
Gain Bandwidth Product	150 kHz
Current - Input Bias	0.1 pA
Voltage - Input Offset	1 mV
Current - Supply	1 µA (x4 Channels)
Current - Output / Channel	600 µA
Voltage - Supply Span (Min)	2.5 V
Voltage - Supply Span (Max)	10 V
Operating Temperature	-40°C to 85°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX419ESD is determined by the following critical parameters:

Functional Compatibility Requirements:

Four independent operational amplifier circuits
Rail-to-rail output configuration
14-SOIC surface mount package (0.154", 3.90mm Width)
Supply voltage range compatibility (minimum 2.5V, maximum 10V overlap)
Operating temperature range coverage

Electrical Performance Considerations:

Slew rate, gain bandwidth product, input bias current, and input offset voltage determine signal fidelity and application suitability
Output current capability per channel affects load-driving capacity
Supply current consumption impacts power budget

The substitute parts listed below maintain the four-circuit, rail-to-rail, 14-SOIC package configuration. Electrical performance varies across substitutes, with implications for specific application requirements.

Parameter Comparison

Parameter	MAX419ESD	OP462GSZ	OP462GSZ-REEL	OP462GSZ-REEL7	TS464CDT	TS974IDT
Manufacturer	Analog Devices Inc./Maxim	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	STMicroelectronics	STMicroelectronics
Number of Circuits	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
Slew Rate	0.08 V/µs	13 V/µs	13 V/µs	13 V/µs	4 V/µs	4 V/µs
Gain Bandwidth Product	150 kHz	15 MHz	15 MHz	15 MHz	12 MHz	12 MHz
Current - Input Bias	0.1 pA	260 nA	260 nA	260 nA	200 nA	200 nA
Voltage - Input Offset	1 mV	25 µV	25 µV	25 µV	1 mV	1 mV
Current - Supply	1 µA (x4)	550 µA (x4)	550 µA (x4)	550 µA (x4)	2 mA (x4)	2 mA (x4)
Current - Output / Channel	600 µA	30 mA	30 mA	30 mA	Not specified	100 mA
Voltage - Supply Span (Min)	2.5 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
Voltage - Supply Span (Max)	10 V	12 V	12 V	12 V	10 V	10 V
Operating Temperature	-40°C to 85°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-20°C to 70°C	-40°C to 125°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

OP462GSZ, OP462GSZ-REEL, OP462GSZ-REEL7 (Analog Devices Inc.)

These three variants represent the same operational amplifier in different packaging configurations (Tube, standard Reel, and Tape & Reel respectively). All three are active products with ROHS3 compliance and extended operating temperature range (-40°C to 125°C). The OP462 series delivers significantly higher performance than the MAX419ESD, with slew rate of 13V/µs and gain bandwidth product of 15MHz. Output current per channel reaches 30mA, substantially exceeding the MAX419ESD specification. Supply voltage range extends to 12V maximum. These devices are suitable for applications requiring higher bandwidth and faster signal processing while maintaining the four-circuit, rail-to-rail configuration.

TS974IDT (STMicroelectronics)

The TS974IDT is an active product with automotive qualification (AEC-Q100) and ROHS3 compliance. Operating temperature range extends to 125°C. This device provides 4V/µs slew rate and 12MHz gain bandwidth product, intermediate between the MAX419ESD and OP462 series. Output current capability reaches 100mA per channel, the highest among all substitutes. Supply voltage range matches the MAX419ESD maximum of 10V. The TS974IDT is appropriate for automotive and industrial applications requiring extended temperature operation and higher output current capacity.

TS464CDT (STMicroelectronics)

The TS464CDT is an active product with ROHS3 compliance. Operating temperature range is limited to -20°C to 70°C, narrower than the MAX419ESD specification. Slew rate is 4V/µs and gain bandwidth product is 12MHz. Supply voltage range maximum is 10V, matching the MAX419ESD. This device is suitable for commercial-grade applications where the reduced temperature range is acceptable and higher performance than the MAX419ESD is required.

Compliance and Regulatory Status

All substitute parts are ROHS3 compliant, addressing the non-compliance status of the obsolete MAX419ESD. All parts carry REACH Unaffected status and EAR99 ECCN classification, consistent with the original device.

Frequently Asked Questions (FAQ)

Q: Can the OP462GSZ series directly replace the MAX419ESD in existing designs?

A: The OP462GSZ, OP462GSZ-REEL, and OP462GSZ-REEL7 share identical electrical specifications and are pin-compatible in the 14-SOIC package. However, the significantly higher slew rate (13V/µs vs. 0.08V/µs) and gain bandwidth product (15MHz vs. 150kHz) may affect circuit behavior in applications with tight bandwidth constraints or specific frequency response requirements. Circuit validation is necessary for designs sensitive to these performance differences.

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

A: These three part numbers represent identical operational amplifiers differentiated only by packaging format. OP462GSZ is supplied in Tube packaging, OP462GSZ-REEL in standard Reel format, and OP462GSZ-REEL7 in Tape & Reel (TR) format. Electrical performance and pin configuration are identical across all three variants. Selection depends on procurement and assembly requirements.

Q: Why does the TS974IDT have higher output current than the OP462 series?

A: The TS974IDT specifies 100mA output current per channel compared to 30mA for the OP462 series. This difference reflects design optimization for different application classes. The TS974IDT automotive qualification and extended temperature range support its use in demanding industrial and automotive environments where higher output drive capability is required.

Q: Is the TS464CDT suitable for applications requiring -40°C operation?

A: No. The TS464CDT operating temperature range is -20°C to 70°C, which does not cover the -40°C minimum specified for the MAX419ESD. Applications requiring -40°C operation must use OP462GSZ variants or TS974IDT, both rated to -40°C minimum.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance status. The original MAX419ESD is RoHS non-compliant. Substitution with any listed part addresses RoHS compliance requirements for new designs or product updates.

Q: What is the significance of the AEC-Q100 qualification on the TS974IDT?

A: AEC-Q100 qualification indicates the TS974IDT meets automotive industry reliability and quality standards. This qualification is relevant for automotive applications and harsh industrial environments. The OP462 series and TS464CDT do not carry this automotive qualification.

Q: Can I use TS464CDT in place of MAX419ESD for low-power applications?

A: The TS464CDT supply current is 2mA (x4 channels) compared to 1µA (x4 channels) for the MAX419ESD. While the TS464CDT remains a low-power device, it consumes 2000 times more supply current. For ultra-low-power applications where the MAX419ESD's 1µA specification is critical, the TS464CDT is not suitable. The OP462 series (550µA) also exceeds the MAX419ESD specification.

Q: What packaging options are available for the OP462 substitute?

A: The OP462 base product is available in three packaging configurations: OP462GSZ (Tube), OP462GSZ-REEL (standard Reel), and OP462GSZ-REEL7 (Tape & Reel). All three maintain identical electrical specifications and 14-SOIC package dimensions. Selection depends on manufacturing assembly equipment and procurement logistics.

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