MAX9142ESA-T Equivalent & Substitute Parts

Part Overview

The MAX9142ESA-T is a dual-channel general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, featuring CMOS push-pull TTL output architecture in an 8-SOIC surface-mount package. The device operates across a 2.7V to 5.5V supply range with a maximum input offset voltage of 2mV at 5V and a propagation delay of 40ns maximum.

The MAX9142ESA-T is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this comparator topology.

Substiute Parts

MAX9142ESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 927MAX9142ESA-T Datasheet

Current PartRFQ

MAX9142ESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 16256MAX9142ESA+T Datasheet

Parametric EquivalentRFQ

LMV7272TLX/NOPB

Texas InstrumentsIn Stock: 16762LMV7272TLX/NOPB Datasheet

MFR RecommendedRFQ

MCP6562T-E/MS

Microchip TechnologyIn Stock: 3051MCP6562T-E/MS Datasheet

MFR RecommendedRFQ

TS3022IDT

STMicroelectronicsIn Stock: 25145TS3022IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX9142ESA-T is determined by the following critical parameters:

• Number of Elements: Must be 2 (dual-channel configuration)
• Output Type: Must support CMOS and Push-Pull output architecture
• Voltage - Supply Range: Must encompass or be compatible with 2.7V ~ 5.5V operation
• Voltage - Input Offset (Max): Must not exceed 2mV @ 5V for direct pin-compatible replacement
• Current - Input Bias (Max): Must not exceed 0.32µA @ 5V
• Current - Quiescent (Max): Must not exceed 300µA
• Propagation Delay (Max): Must not exceed 40ns for timing-critical applications
• Hysteresis: Must not exceed 1.5mV
• Operating Temperature: Must support -40°C ~ 85°C minimum
• Package / Case: 8-SOIC form factor for direct PCB compatibility
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories:

Parametric Equivalent: Identical electrical specifications and package format, enabling direct replacement without design modification.

Manufacturer Recommended Alternatives: Parts meeting core functional requirements with variations in package format, performance characteristics, or supply voltage range. These require design evaluation and potential PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

MAX9142ESA+T (Parametric Equivalent)

The MAX9142ESA+T is the direct parametric equivalent to the MAX9142ESA-T. This part maintains identical electrical specifications, package format, and performance characteristics. The MAX9142ESA+T is currently in active production status with substantial inventory availability (16,235 units). This part is ROHS3 compliant and REACH unaffected, meeting all regulatory requirements. Selection of the MAX9142ESA+T eliminates design risk and enables immediate PCB compatibility without layout modification.

MCP6562T-E/MS (Microchip Technology)

The MCP6562T-E/MS is an active alternative manufactured by Microchip Technology. This part shares the dual-channel general-purpose comparator architecture with enhanced rail-to-rail output capability and TTL compatibility. The MCP6562T-E/MS operates across 1.8V to 5.5V, providing extended low-voltage operation. Key differences include a 10mV maximum input offset voltage (versus 2mV), 80ns propagation delay (versus 40ns), and 5mV hysteresis (versus 1.5mV). The package format is 8-MSOP, requiring PCB layout modification. Current quiescent consumption is reduced to 130µA. The part is ROHS3 compliant with active production status and 2,953 units in inventory. This alternative is suitable for applications where extended temperature range (-40°C to 125°C) and lower supply voltage operation are required, with tolerance for increased propagation delay.

LMV7272TLX/NOPB (Texas Instruments)

The LMV7272TLX/NOPB is a manufacturer-recommended alternative from Texas Instruments. This dual-channel comparator features rail-to-rail output architecture and operates across 1.8V to 5.5V single supply or ±0.9V to 2.75V dual supply. The package format is 8-WFBGA (DSBGA), requiring significant PCB layout modification and specialized assembly considerations. The LMV7272TLX/NOPB exhibits a 4mV maximum input offset voltage, 2.1µs propagation delay, and substantially reduced quiescent current of 14µA. CMRR and PSRR are specified at 78dB. This part is ROHS3 compliant with active production status and 16,718 units in inventory. Selection of this alternative is appropriate for ultra-low-power applications and designs requiring extended supply voltage flexibility, with acceptance of significantly increased propagation delay and package format change.

TS3022IDT (STMicroelectronics)

The TS3022IDT is a manufacturer-recommended alternative from STMicroelectronics. This dual-channel comparator features push-pull output architecture and operates across 1.8V to 5V. The package format is 8-SOIC, matching the original part footprint and enabling direct PCB compatibility. The TS3022IDT exhibits an 8mV maximum input offset voltage, 105ns propagation delay, and reduced quiescent current of 90µA. CMRR is specified at 79dB. Operating temperature range extends to 125°C. This part is ROHS3 compliant with active production status and 25,100 units in inventory. Selection of the TS3022IDT is appropriate for applications requiring extended temperature operation and identical package footprint, with tolerance for increased input offset voltage and propagation delay.

Frequently Asked Questions (FAQ)

Q: Can the MAX9142ESA+T be used as a direct replacement for the MAX9142ESA-T without PCB modification?

A: Yes. The MAX9142ESA+T is a parametric equivalent with identical electrical specifications and 8-SOIC package format. No PCB layout modification is required. The primary difference is product status: MAX9142ESA+T is in active production, whereas MAX9142ESA-T is obsolete.

Q: What are the key differences between the MAX9142ESA+T and MCP6562T-E/MS?

A: Both are dual-channel general-purpose comparators with CMOS push-pull output. The MAX9142ESA+T maintains 2mV input offset voltage and 40ns propagation delay in an 8-SOIC package. The MCP6562T-E/MS offers extended low-voltage operation (1.8V minimum), reduced quiescent current (130µA), and extended temperature range (-40°C to 125°C), but features 10mV input offset voltage, 80ns propagation delay, and requires an 8-MSOP package footprint. PCB layout modification is necessary for the MCP6562T-E/MS.

Q: Is the LMV7272TLX/NOPB suitable for timing-critical applications?

A: No. The LMV7272TLX/NOPB exhibits a 2.1µs propagation delay, significantly exceeding the MAX9142ESA-T specification of 40ns maximum. This part is appropriate for applications where propagation delay is not a critical parameter. Additionally, the 8-WFBGA package format requires specialized PCB design and assembly considerations.

Q: Which substitute part maintains the same package footprint as the MAX9142ESA-T?

A: Both the MAX9142ESA+T and TS3022IDT utilize the 8-SOIC package format, enabling direct PCB compatibility without layout modification. The MAX9142ESA+T is the parametric equivalent. The TS3022IDT is an alternative with increased input offset voltage (8mV) and propagation delay (105ns) but extended temperature range support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The MAX9142ESA+T, MCP6562T-E/MS, LMV7272TLX/NOPB, and TS3022IDT are all ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the primary reason to select the TS3022IDT over other alternatives?

A: The TS3022IDT is appropriate when identical 8-SOIC package footprint is required and extended operating temperature range (-40°C to 125°C) is necessary. This part maintains PCB compatibility while providing enhanced thermal performance. Trade-offs include increased input offset voltage (8mV) and propagation delay (105ns) compared to the MAX9142ESA-T.

Q: Can the MCP6562T-E/MS operate at lower supply voltages than the MAX9142ESA-T?

A: Yes. The MCP6562T-E/MS operates across 1.8V to 5.5V, whereas the MAX9142ESA-T operates across 2.7V to 5.5V. The MCP6562T-E/MS enables operation in applications requiring 1.8V to 2.7V supply voltage. However, PCB layout modification is required due to the 8-MSOP package format.