AD246JN

Overview

The AD246JN is a clock driver integrated circuit manufactured by Analog Devices Inc., designed to distribute clock signals from a single 15 V supply. It operates at a nominal frequency of 25 kHz with a 15 V peak-to-peak output voltage swing. The device supports a maximum fan-out of 32 loads, specifically optimized for driving AD204 isolators. Key electrical parameters include an unloaded supply current of 35 mA and an input voltage range of 14.25 V to 15.75 V. It is housed in a 14-pin DIP package (AD246JN) suitable for through-hole mounting.

Feature Summary

• Nominal 25 kHz clock frequency with 15 V p-p output swing
• Maximum fan-out of 32 units when driving AD204 isolators
• Single 15 V power supply operation with 35 mA unloaded current
• Integrated supply bypass capacitor within the IC

Applications

• Driving multiple AD204 digital isolators in a system
• Clock distribution in industrial control systems requiring galvanic isolation
• Signal conditioning chains where high-current clock drive is necessary

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified suppliers. Confirm the specific suffix 'JN' corresponds to the 14-pin DIP package variant. Check for end-of-life status or discontinuation notices prior to procurement, as availability may be limited for legacy components.

Selection Notes

Select the AD246JN when a robust clock driver capable of sourcing significant current for multiple isolators is required. Ensure the system power supply can maintain the minimum 14.25 V threshold to support the full rated fan-out. Consider thermal management if operating near temperature limits, as the device dissipates power based on load conditions.

Part Context

The AD246 belongs to the AD246 series of clock drivers. The 'JN' suffix denotes the 14-pin plastic DIP package, distinct from the 'JY' SIP-4 variant. This component is part of Analog Devices' legacy signal chain products, often paired with their digital isolator family for complete isolation solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives only after verifying electrical specifications match the 25 kHz frequency and 15 V p-p output requirements.