MAX970ESD Equivalent & Substitute Parts

Part Overview

The MAX970ESD is a general-purpose comparator IC manufactured by Analog Devices Inc./Maxim Integrated, featuring four independent comparator elements in a 14-SOIC surface-mount package. This device provides open-drain, rail-to-rail output configuration with supply voltage range of 1.6V to 5.5V, making it suitable for low-power analog signal comparison applications.

The MAX970ESD is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance of systems utilizing this comparator.

Substiute Parts

MAX970ESD
Analog Devices Inc./Maxim IntegratedIn Stock: 747MAX970ESD Datasheet
MAX970ESD
Current Part
MAX970ESD+
Analog Devices Inc./Maxim IntegratedIn Stock: 1449MAX970ESD+ Datasheet
MAX970ESD+
Direct

Key Parameters

Parameter Value
Number of Elements 4
Output Type Open-Drain, Rail-to-Rail
Voltage - Supply, Single/Dual (±) 1.6V ~ 5.5V
Voltage - Input Offset (Max) 7mV @ 5.5V
Current - Input Bias (Max) 0.05µA @ 5.5V
Current - Quiescent (Max) 18µA
CMRR, PSRR (Typ) 56.48dB CMRR, 80dB PSRR
Propagation Delay (Max) 20µs
Hysteresis ±1mV
Operating Temperature -40°C ~ 85°C
Package / Case 14-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MAX970ESD is determined by strict equivalence across the following critical parameters:

  • Functional Configuration: Four independent comparator elements with identical output topology (open-drain, rail-to-rail)
  • Electrical Specifications: Matching supply voltage range (1.6V ~ 5.5V), input offset voltage (7mV @ 5.5V), input bias current (0.05µA @ 5.5V), quiescent current (18µA), propagation delay (20µs), and hysteresis (±1mV)
  • Package Compatibility: 14-SOIC surface-mount package with identical physical dimensions (0.154", 3.90mm Width)
  • Compliance Standards: ROHS3 compliance and MSL Level 1 rating

The MAX970ESD+ qualifies as a direct substitute based on identical electrical and mechanical parameters. The primary distinction is product status: MAX970ESD+ is active, whereas MAX970ESD is obsolete.

Parameter Comparison

Parameter MAX970ESD MAX970ESD+
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Number of Elements 4 4
Output Type Open-Drain, Rail-to-Rail Open-Drain, Rail-to-Rail
Voltage - Supply, Single/Dual (±) 1.6V ~ 5.5V 1.6V ~ 5.5V
Voltage - Input Offset (Max) 7mV @ 5.5V 7mV @ 5.5V
Current - Input Bias (Max) 0.05µA @ 5.5V 0.05µA @ 5.5V
Current - Quiescent (Max) 18µA 18µA
CMRR, PSRR (Typ) 56.48dB CMRR, 80dB PSRR 56.48dB CMRR, 80dB PSRR
Propagation Delay (Max) 20µs 20µs
Hysteresis ±1mV ±1mV
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 14-SOIC (0.154", 3.90mm Width) 14-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount Surface Mount
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
Product Status Obsolete Active

Engineering Selection Recommendations

The MAX970ESD+ is the direct substitute for MAX970ESD. Both parts maintain identical electrical specifications, package configuration, and compliance certifications. The MAX970ESD+ is the recommended selection for new designs and ongoing production due to its active product status, ensuring continued availability and manufacturer support.

For applications currently using MAX970ESD, direct replacement with MAX970ESD+ requires no circuit modifications or design changes. Both parts are ROHS3 compliant and carry MSL Level 1 rating, supporting equivalent handling and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX970ESD+ be used as a direct replacement for MAX970ESD?

A: Yes. The MAX970ESD+ is electrically and mechanically identical to MAX970ESD. All electrical parameters, package dimensions, and compliance certifications are equivalent. Direct substitution is possible without circuit modification.

Q: What is the primary difference between MAX970ESD and MAX970ESD+?

A: The primary difference is product status. MAX970ESD is obsolete, while MAX970ESD+ is active. This distinction affects supply chain availability and manufacturer support. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: Both parts use the 14-SOIC surface-mount package with identical physical dimensions (0.154", 3.90mm Width). The MAX970ESD is supplied in standard packaging, while MAX970ESD+ is supplied in Tube packaging. This does not affect electrical performance or PCB compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both MAX970ESD and MAX970ESD+ are ROHS3 compliant and carry MSL Level 1 rating. They meet identical environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: MAX970ESD+ should be selected for new designs. As an active product, it ensures long-term availability and manufacturer support compared to the obsolete MAX970ESD.

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