MAX994ESD-T Equivalent & Substitute Parts

Part Overview

The MAX994ESD-T is a general-purpose CMOS comparator with open-drain, rail-to-rail output and TTL compatibility, packaged in a 14-SOIC surface-mount configuration. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The MAX994ESD-T remains in stock inventory, but substitute parts with active product status provide long-term availability assurance.

Substiute Parts

MAX994ESD-T

Analog Devices Inc./Maxim IntegratedIn Stock: 737MAX994ESD-T Datasheet

Current PartRFQ

MAX994ESD+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2128MAX994ESD+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX994ESD-T is determined by strict equivalence across the following critical parameters:

• Number of Elements: Must be 4 comparators
• Output Type: Must be CMOS, Open-Drain, Rail-to-Rail, TTL
• Supply Voltage Range: Must support 2.5V ~ 5.5V single supply and ±1.25V ~ 2.75V dual supply
• Input Offset Voltage: Maximum 5mV @ 5.5V
• Input Bias Current: Maximum 1pA @ 5.5V
• Quiescent Current: Maximum 24µA
• CMRR and PSRR: Minimum 80dB for both parameters
• Propagation Delay: Maximum 450ns
• Hysteresis: ±3mV
• Operating Temperature Range: -40°C ~ 85°C
• Package: 14-SOIC surface-mount configuration

The MAX994ESD+T meets all specified electrical and mechanical parameters and is therefore a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The MAX994ESD+T is a direct electrical and mechanical equivalent to the MAX994ESD-T. Both parts share identical electrical specifications, operating parameters, and package configuration. The primary distinction is product status: the MAX994ESD-T is obsolete, while the MAX994ESD+T maintains active status with Analog Devices Inc./Maxim Integrated.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements. The MAX994ESD+T is supplied in Tape & Reel format, which is standard for production environments, whereas the MAX994ESD-T is supplied in tube packaging. This packaging difference does not affect electrical performance or pin compatibility.

For new designs or production continuity, the MAX994ESD+T is the appropriate selection due to its active product status and assured long-term availability.

Frequently Asked Questions (FAQ)

Q: Are the MAX994ESD-T and MAX994ESD+T pin-compatible?

A: Yes. Both devices are housed in 14-SOIC packages with identical pin configurations and electrical characteristics. Direct PCB substitution is possible without circuit modification.

Q: What is the difference between the MAX994ESD-T and MAX994ESD+T?

A: The devices are electrically identical. The primary difference is packaging format: MAX994ESD-T is supplied in tube packaging, while MAX994ESD+T is supplied in Tape & Reel format. Additionally, MAX994ESD-T is classified as obsolete, while MAX994ESD+T maintains active product status.

Q: Can I use MAX994ESD+T in place of MAX994ESD-T in existing designs?

A: Yes. The MAX994ESD+T is a direct substitute with identical electrical specifications, operating temperature range, supply voltage requirements, and output characteristics. No design changes are required.

Q: What are the key electrical parameters that define substitution for the MAX994 series?

A: Substitution is determined by equivalence in the following parameters: four comparator elements, CMOS open-drain rail-to-rail TTL output, 2.5V to 5.5V single supply or ±1.25V to ±2.75V dual supply operation, 5mV maximum input offset voltage, 1pA maximum input bias current, 24µA maximum quiescent current, 80dB CMRR and PSRR, 450ns maximum propagation delay, ±3mV hysteresis, and -40°C to 85°C operating temperature range.

Q: Are both parts RoHS compliant?

A: Yes. Both the MAX994ESD-T and MAX994ESD+T are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory standards for electronic components.