MAX9142ESA Equivalent & Substitute Parts

Part Overview

The MAX9142ESA is a dual general-purpose comparator manufactured by Analog Devices Inc./Maxim Integrated, packaged in 8-SOIC surface-mount configuration. This device features CMOS push-pull TTL output architecture with a supply voltage range of 2.7V to 5.5V, making it suitable for precision voltage comparison applications across industrial and consumer electronics.

The MAX9142ESA is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity. Active substitute parts maintain electrical compatibility while offering extended availability and, in some cases, enhanced performance characteristics.

Substiute Parts

MAX9142ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 6264MAX9142ESA Datasheet

Current PartRFQ

MAX9142ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 2468MAX9142ESA+ Datasheet

DirectRFQ

MCP6562-E/MS

Microchip TechnologyIn Stock: 6002MCP6562-E/MS Datasheet

MFR RecommendedRFQ

TS3022IDT

STMicroelectronicsIn Stock: 25145TS3022IDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Dual comparator configuration (2 elements minimum)
• Output type compatibility (CMOS, Push-Pull, or TTL output stages)
• Supply voltage overlap with 2.7V ~ 5.5V range
• Package compatibility (8-pin surface-mount variants acceptable)
• Input offset and bias current within acceptable design tolerances
• Propagation delay suitable for timing-critical applications
• Operating temperature range supporting -40°C minimum

Three substitute parts meet these criteria:

1. MAX9142ESA+ — Direct manufacturer upgrade with identical electrical specifications and active product status
2. MCP6562-E/MS — Microchip alternative with extended supply range and rail-to-rail output capability
3. TS3022IDT — STMicroelectronics option with reduced quiescent current and extended temperature range

Parameter Comparison

Engineering Selection Recommendations

MAX9142ESA+ (Direct Manufacturer Upgrade)

The MAX9142ESA+ is the primary substitute, offering identical electrical specifications and pinout compatibility. This part maintains the same 2.7V ~ 5.5V supply range, 40ns propagation delay, and 1.5mV hysteresis. The MAX9142ESA+ carries active product status with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring long-term availability and supply chain stability. No design modifications are required for direct substitution.

MCP6562-E/MS (Extended Supply Range Alternative)

The MCP6562-E/MS from Microchip Technology extends the lower supply voltage limit to 1.8V while maintaining 5.5V upper compatibility. This part features rail-to-rail output capability and significantly reduced quiescent current (130µA versus 300µA), beneficial for battery-powered applications. The 80ns propagation delay and 5mV hysteresis represent acceptable trade-offs for designs not requiring the MAX9142ESA's 40ns response time. Package footprint differs (8-MSOP, 3.00mm width versus 8-SOIC, 3.90mm width), requiring PCB layout verification. Active product status and ROHS3 compliance are confirmed.

TS3022IDT (Low-Power Alternative)

The TS3022IDT from STMicroelectronics offers the lowest quiescent current consumption (90µA) and extended operating temperature range (-40°C ~ 125°C). This part maintains 8-SOIC packaging compatibility with the MAX9142ESA. The 105ns propagation delay and unspecified hysteresis represent performance trade-offs suitable for applications prioritizing power efficiency over speed. Active product status and ROHS3 compliance are confirmed.

Frequently Asked Questions (FAQ)

Q: Can MAX9142ESA+ be used as a direct replacement without PCB modifications?

A: Yes. The MAX9142ESA+ maintains identical pinout, package footprint (8-SOIC, 3.90mm), and electrical specifications. No PCB layout changes are required.

Q: What are the key differences between MCP6562-E/MS and MAX9142ESA?

A: The MCP6562-E/MS extends supply voltage range to 1.8V minimum, reduces quiescent current to 130µA, and adds rail-to-rail output capability. However, propagation delay increases to 80ns and input offset increases to 10mV. Package footprint differs (8-MSOP, 3.00mm versus 8-SOIC, 3.90mm), requiring PCB verification.

Q: Is TS3022IDT suitable for timing-critical applications?

A: The TS3022IDT propagation delay of 105ns is approximately 2.6 times slower than the MAX9142ESA's 40ns specification. Applications requiring sub-100ns response times should verify timing compatibility before substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. MAX9142ESA+, MCP6562-E/MS, and TS3022IDT all carry ROHS3 compliance certification with unlimited moisture sensitivity rating (MSL 1).

Q: Which substitute offers the best power efficiency?

A: The TS3022IDT provides the lowest quiescent current at 90µA, followed by MCP6562-E/MS at 130µA. Both represent significant reductions from the MAX9142ESA's 300µA specification, suitable for battery-powered or low-power applications.

Q: Can MCP6562-E/MS operate at 2.7V supply voltage?

A: No. The MCP6562-E/MS minimum supply voltage is 1.8V, but designs requiring operation at 2.7V ~ 5.5V should verify that 1.8V lower limit does not conflict with system requirements. The part is fully compatible within the 2.7V ~ 5.5V range.

Q: What is the impact of different package types on board assembly?

A: MAX9142ESA+ and TS3022IDT use 8-SOIC packaging (3.90mm width), maintaining footprint compatibility. MCP6562-E/MS uses 8-MSOP packaging (3.00mm width), requiring PCB footprint verification and potential rework of solder paste stencils and pick-and-place programming.