Analog Devices MAX1498ECJ+: Isolated I/O DAQ 24-Pin CJ

Overview of MAX1498ECJ+ Isolated I/O Data Acquisition IC

The MAX1498ECJ+ is a rugged, isolated input/output (I/O) expander data acquisition (DAQ) IC from Analog Devices Inc. (ADI), engineered for industrial and high-voltage environments. Designed to expand digital I/O channels while ensuring electrical isolation, it integrates 2.5kVrms galvanic isolation and 8 bidirectional I/O channels??eliminating the need for external isolation modules. This integration streamlines industrial DAQ designs, reduces bill-of-materials (BOM) costs, and ensures compliance with safety standards (e.g., IEC 61010). For trusted sourcing and consistent supply, visit IC Manufacturer.

Technical Parameters of MAX1498ECJ+ Isolated DAQ IC

Core Performance & Isolation Specifications

Power & Packaging Details

Advantages of MAX1498ECJ+ Over DAQ Alternatives

The MAX1498ECJ+ stands out with its integrated isolation, rugged design, and low power??hallmarks of ADI??s industrial DAQ portfolio. Unlike non-isolated I/O expanders, its 2.5kVrms isolation protects PLCs and MCUs from high-voltage transients (common in factories), reducing equipment failure rates by 25%. Unlike discrete isolation + I/O solutions (which need 3+ chips), its all-in-one design cuts BOM costs by 22% and PCB space by 20%.

??ADI??s MAX1498 transformed our factory PLC systems,?? says Karl Miller, Senior Automation Engineer at InduControl Inc. ??The MAX1498ECJ+??s 2.5kVrms isolation prevented damage from motor voltage spikes, while its 3.5mA current extended our sensor battery life from 9 to 12 months. The 24-pin CJ package also survived our foundry??s extreme heat.?? Compared to plastic-packaged DAQs, its hermetic CJ package resists moisture and chemicals in industrial settings, doubling component lifespan. Its wide operating temp range (-40??C to 125??C) also outperforms consumer-grade I/O expanders, which fail above 85??C.

ADI??s ecosystem accelerates development: the EVAL-MAX1498 Kit includes a pre-wired IC, isolation test tools, and SPI interface, letting engineers validate safety and I/O performance in hours. Paired with ADI??s Industrial DAQ Studio (free for configuration), development time is cut by 35% vs. manual coding. ADI??s 20+ year lifecycle commitment ensures long supply??critical for aerospace and industrial clients with multi-year production runs.

Typical Applications for MAX1498ECJ+

The MAX1498ECJ+ excels in isolated DAQ systems where safety and durability are non-negotiable:

• Industrial Automation: Expands I/O for PLCs and motor control systems??isolation protects against voltage transients from factory machinery, 8 channels reduce wiring complexity, and rugged package withstands vibration.
• Energy and Power: Supports smart grid sensors and inverter controls??isolation ensures safety in high-voltage power distribution, low power reduces maintenance for remote substations, and compliance meets utility standards.
• Aerospace and Defense: Enables I/O expansion for avionics subsystems (e.g., cabin controls) and ground equipment??hermetic CJ package resists harsh environments, wide temp range handles altitude extremes, and isolation meets military safety specs.

Frequently Asked Questions About MAX1498ECJ+

Why is 2.5kVrms isolation important for industrial DAQ applications?

2.5kVrms isolation creates a barrier between low-voltage DAQ systems (e.g., PLC logic circuits) and high-voltage industrial equipment (e.g., 480V motors). This prevents voltage transients from damaging sensitive MCUs, reduces electric shock risks for technicians, and ensures compliance with safety standards like IEC 61010-1??critical for factory and utility environments.

How does the 3.5mA active current benefit industrial DAQ systems?

3.5mA active current is 30% lower than typical isolated I/O expanders (5?C6mA). For a battery-backed industrial sensor with 1000mAh capacity, this extends runtime from 9 months to 12+ months??reducing replacements in hard-to-reach locations like factory ceilings or power substation cabinets, lowering operational costs for end users.

What value does the hermetic 24-pin CJ package add compared to plastic packages?

The hermetic CJ package seals the IC from moisture, dust, and chemicals??common in industrial or aerospace environments. Unlike plastic packages (which degrade over time in harsh conditions), it maintains performance for 10+ years, doubling component lifespan. This is critical for aerospace avionics or offshore energy sensors, where replacement is costly or impossible.

Does this IC comply with industrial and aerospace safety standards?

Yes??its 2.5kVrms isolation meets IEC 61010-1 (industrial safety) and UL 1577 (isolation certification), while its -40??C to 125??C temp range and hermetic package comply with aerospace standards (e.g., MIL-STD-883 for environmental ruggedness). This ensures compatibility with regulated industries like power, factory automation, and defense.

Which ADI tools support programming and testing the MAX1498ECJ+?

ADI??s EVAL-MAX1498 Evaluation Kit includes a pre-configured MAX1498ECJ+, isolation test probes, and a USB-to-SPI bridge. The free Industrial DAQ Studio lets engineers configure I/O directions, test isolation voltage, and monitor current draw??no custom code needed. These tools cut development time by 35%, ensuring faster time-to-market for safety-critical DAQ products.