MAX985ESA-T Equivalent & Substitute Parts

Part Overview

The MAX985ESA-T is a general-purpose CMOS comparator manufactured by Analog Devices Inc./Maxim Integrated, housed in an 8-SOIC surface-mount package. This device features rail-to-rail, push-pull output with TTL compatibility and operates across a supply voltage range of 2.5V to 5.5V (single supply) or ±1.25V to 2.75V (dual supply). The MAX985ESA-T is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts must maintain electrical compatibility across critical parameters including supply voltage range, input offset voltage, propagation delay, and output characteristics while accommodating different package options.

Substiute Parts

MAX985ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 1040MAX985ESA-T Datasheet

Current PartRFQ

MAX985ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 4686MAX985ESA+T Datasheet

Parametric EquivalentRFQ

BU5265HFV-TR

Rohm SemiconductorIn Stock: 18196BU5265HFV-TR Datasheet

MFR RecommendedRFQ

LMV7219M5

National SemiconductorIn Stock: 1406LMV7219M5 Datasheet

MFR RecommendedRFQ

LMV7219M5/NOPB

Texas InstrumentsIn Stock: 23142LMV7219M5/NOPB Datasheet

MFR RecommendedRFQ

LMV7219M7X/NOPB

Texas InstrumentsIn Stock: 17141LMV7219M7X/NOPB Datasheet

MFR RecommendedRFQ

MCP6541RT-E/OT

Microchip TechnologyIn Stock: 4341MCP6541RT-E/OT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX985ESA-T are classified based on electrical parameter compatibility and product status. The primary substitution criterion is functional equivalence across the following key parameters:

• Supply voltage range compatibility (minimum 2.5V single supply or equivalent dual supply)
• Input offset voltage within acceptable tolerance (≤7mV @ rated voltage)
• Output type (CMOS, push-pull, rail-to-rail, TTL compatible)
• Propagation delay performance (≤500ns acceptable for general-purpose applications)
• Operating temperature range (-40°C ~ 85°C minimum)
• RoHS3 compliance and MSL rating

Substitute parts are grouped into two categories:

Parametric Equivalent (Same Manufacturer): MAX985ESA+T maintains identical electrical specifications and differs only in packaging format (Tape & Reel vs. standard packaging). This part is active and directly interchangeable.

Manufacturer-Recommended Alternatives: BU5265HFV-TR, LMV7219M5, LMV7219M5/NOPB, LMV7219M7X/NOPB, and MCP6541RT-E/OT provide functional equivalence with variations in package type, propagation delay, and quiescent current. These parts meet the core electrical requirements while offering different form factors and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

MAX985ESA+T is the direct parametric equivalent and recommended first choice for MAX985ESA-T replacement. This part maintains identical electrical specifications and differs only in packaging format (Tape & Reel). Product status is active, ensuring long-term availability and supply chain stability. RoHS3 compliance and MSL rating are identical.

LMV7219M5/NOPB and LMV7219M7X/NOPB (Texas Instruments) are suitable alternatives for applications where package size reduction is acceptable. Both parts offer superior propagation delay performance (20ns vs. 450ns) and higher CMRR/PSRR ratings (85dB vs. 80dB). The primary trade-off is increased quiescent current (1.8mA vs. 24µA). LMV7219M5/NOPB uses SOT-23-5 packaging, while LMV7219M7X/NOPB uses SC-70-5 packaging. Both are active products with full RoHS3 compliance.

BU5265HFV-TR (Rohm Semiconductor) provides functional equivalence in a 5-HVSOF package with extended supply voltage range (1.8V minimum). Propagation delay is slightly higher (500ns typical) and quiescent current is elevated (45µA). This option is suitable for space-constrained designs requiring smaller package footprint.

MCP6541RT-E/OT (Microchip Technology) offers the lowest quiescent current (1µA) and widest operating temperature range (-40°C ~ 125°C). However, propagation delay is significantly longer (8µs), making this part suitable only for non-time-critical applications. Input offset voltage is higher (7mV @ 5.5V). This part is active with full RoHS3 compliance.

All substitute parts maintain RoHS3 compliance, MSL rating of 1 (Unlimited), and surface-mount compatibility. Selection should prioritize MAX985ESA+T for direct replacement, with alternative parts chosen based on specific package, performance, or supply voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX985ESA+T be used as a direct replacement for MAX985ESA-T?

A: Yes. MAX985ESA+T is a parametric equivalent with identical electrical specifications. The only difference is packaging format (Tape & Reel vs. standard). Both parts are RoHS3 compliant with MSL rating of 1 (Unlimited). MAX985ESA+T is active and recommended for new designs and production continuity.

Q: What are the main differences between the LMV7219 variants and the MAX985ESA-T?

A: LMV7219M5/NOPB and LMV7219M7X/NOPB offer significantly faster propagation delay (20ns vs. 450ns) and higher CMRR/PSRR (85dB vs. 80dB). Quiescent current is higher (1.8mA vs. 24µA). Package options differ: LMV7219M5/NOPB uses SOT-23-5, while LMV7219M7X/NOPB uses SC-70-5. Both operate at 2.7V to 5V supply voltage.

Q: Is BU5265HFV-TR suitable for low-voltage applications?

A: Yes. BU5265HFV-TR supports supply voltage from 1.8V to 5.5V, providing lower voltage operation compared to MAX985ESA-T (2.5V minimum). However, quiescent current is higher (45µA vs. 24µA) and package is smaller (5-HVSOF vs. 8-SOIC).

Q: Which substitute part has the lowest power consumption?

A: MCP6541RT-E/OT has the lowest quiescent current at 1µA. However, this part has significantly longer propagation delay (8µs) and higher input offset voltage (7mV @ 5.5V), making it suitable only for non-time-critical applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (MAX985ESA+T, BU5265HFV-TR, LMV7219M5/NOPB, LMV7219M7X/NOPB, and MCP6541RT-E/OT) are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: What package options are available for substitutes?

A: MAX985ESA+T maintains 8-SOIC packaging. BU5265HFV-TR uses 5-HVSOF (SOT-665). LMV7219M5/NOPB uses SOT-23-5 (SC-74A). LMV7219M7X/NOPB uses SC-70-5 (5-TSSOP). MCP6541RT-E/OT uses SOT-23-5 (SC-74A). Package selection depends on PCB layout constraints and available footprints.

Q: Can MCP6541RT-E/OT operate at higher temperatures than MAX985ESA-T?

A: Yes. MCP6541RT-E/OT operates from -40°C to 125°C, compared to MAX985ESA-T at -40°C to 85°C. This extended temperature range is beneficial for industrial and automotive applications.

Q: What is the primary reason to choose MAX985ESA+T over other alternatives?

A: MAX985ESA+T is the direct parametric equivalent with identical electrical specifications and is the active product from the same manufacturer. It provides the lowest risk for design continuity and supply chain stability.