MAX965ESA+ Equivalent & Substitute Parts

Part Overview

The MAX965ESA+ is a single-channel comparator with integrated voltage reference manufactured by Analog Devices Inc./Maxim Integrated. This device features open-drain, rail-to-rail output configuration in an 8-SOIC surface mount package. The product is currently active and widely used in precision measurement and signal conditioning applications. Finding equivalent or substitute parts may be necessary due to inventory constraints, supply chain considerations, or application-specific performance requirements while maintaining functional compatibility.

Key Parameters

Parameter	MAX965ESA+
Manufacturer	Analog Devices Inc./Maxim Integrated
Category	Linear
Type	Comparator with Voltage Reference
Number of Elements	1
Output Type	Open-Drain, Rail-to-Rail
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Voltage - Supply, Single/Dual (±)	1.6V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the MAX965ESA+ is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 8-SOIC surface mount package to ensure mechanical and electrical pin compatibility without PCB redesign.

Supply Voltage Range: The substitute must operate within or encompass the 1.6V ~ 5.5V supply voltage range of the MAX965ESA+.

Output Configuration: The substitute must provide compatible output characteristics suitable for the application circuit topology.

Operating Temperature Range: The substitute must support the -40°C ~ 85°C operating temperature specification.

Compliance Status: Both parts must maintain ROHS3 compliance and active product status for production use.

The TS3022IDT from STMicroelectronics meets the package, voltage supply, and compliance requirements. However, it differs in element count, output type, and operating temperature range, which may affect circuit-level compatibility depending on application requirements.

Parameter Comparison

Parameter	MAX965ESA+	TS3022IDT
Manufacturer	Analog Devices Inc./Maxim Integrated	STMicroelectronics
Category	Linear	Linear
Type	Comparator with Voltage Reference	Comparator General Purpose
Number of Elements	1	2
Output Type	Open-Drain, Rail-to-Rail	Push-Pull
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount
Voltage - Supply, Single/Dual (±)	1.6V ~ 5.5V	1.8V ~ 5V
Voltage - Input Offset (Max)	7mV @ 5.5V	8mV @ 5V
Current - Input Bias (Max)	0.05µA @ 5.5V	0.16µA @ 5V
Current - Quiescent (Max)	12µA	90µA
Operating Temperature	-40°C ~ 85°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active

Engineering Selection Recommendations

MAX965ESA+ (Direct Part): Recommended as the primary selection when the original specification is required. This part maintains active product status with ROHS3 compliance and is available in production quantities (1032 pcs in stock).

TS3022IDT (Substitute Consideration): This part shares the same 8-SOIC package footprint and maintains ROHS3 compliance with active product status. However, the following differences must be evaluated against application requirements:

The TS3022IDT contains two comparator elements versus one in the MAX965ESA+, operates with a narrower supply voltage range (1.8V ~ 5V versus 1.6V ~ 5.5V), features push-pull output instead of open-drain configuration, and exhibits higher quiescent current consumption (90µA versus 12µA). The extended operating temperature range (-40°C ~ 125°C) provides additional thermal margin beyond the MAX965ESA+ specification.

Selection between these parts depends on whether the application circuit can accommodate the output type difference, supply voltage constraints, and power consumption implications of the TS3022IDT.

Frequently Asked Questions (FAQ)

Q: Can the TS3022IDT directly replace the MAX965ESA+ without circuit modification?

A: Package compatibility is confirmed (both 8-SOIC), but circuit-level compatibility requires evaluation. The TS3022IDT has push-pull output versus the MAX965ESA+ open-drain configuration, which affects pull-up resistor requirements and output impedance characteristics. Supply voltage range differs (1.8V ~ 5V versus 1.6V ~ 5.5V), and quiescent current is significantly higher (90µA versus 12µA).

Q: What are the key electrical differences between these parts?

A: The MAX965ESA+ integrates a voltage reference with single open-drain comparator output, while the TS3022IDT is a general-purpose dual comparator with push-pull outputs and no integrated reference. Input offset voltage is comparable (7mV versus 8mV), but input bias current and quiescent current differ substantially. Propagation delay specifications are not directly comparable due to different output architectures.

Q: Are both parts suitable for low-voltage applications below 1.8V?

A: The MAX965ESA+ supports operation down to 1.6V supply voltage, while the TS3022IDT minimum is 1.8V. For applications requiring sub-1.8V operation, only the MAX965ESA+ meets the specification.

Q: Do both parts meet current compliance requirements?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both maintain active product status suitable for production applications.

Q: How does the package footprint compare?

A: Both parts use identical 8-SOIC packaging (0.154" width, 3.90mm), ensuring mechanical compatibility and identical PCB footprint requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message