MAX126CEAX+D

ADCs/DACs - Special Purpose Overview

The MAX126CEAX+D is a high-speed, multichannel, 14-bit data-acquisition system (DAS) featuring four simultaneous-sampling track/hold amplifiers. It integrates a successive-approximation ADC with a 3µs conversion time per channel and an internal +2.5V reference. The device supports ±2.5V input ranges and includes a fault-protected multiplexer tolerant to ±17V. It operates on ±5V analog supplies and a +5V digital supply within the -40°C to +85°C temperature range. Data access is handled via a high-speed parallel DSP interface compatible with standard microprocessors.

ADCs/DACs - Special Purpose Feature Summary

• Four simultaneous-sampling T/H amplifiers with two multiplexed inputs each, supporting eight single-ended inputs total
• Internal +2.5V reference or external reference operation with buffered output
• Programmable onboard sequencer for converting one to four channels per CONVST pulse
• Fault-protected input multiplexer tolerant to ±17V without IC damage

ADCs/DACs - Special Purpose Applications

• Multiphase motor control
• Power-grid synchronization
• Power-factor monitoring
• Digital signal processing
• Vibration and waveform analysis

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status (+ suffix indicates lead-free). Check datasheet revision history for any specification updates prior to integration into final designs.

ADCs/DACs - Special Purpose Selection Notes

Select this model for applications requiring simultaneous sampling of multiple channels with phase preservation. Ensure the ±2.5V input range matches the signal amplitude. Verify that the parallel interface timing requirements align with the host processor's capabilities.

ADCs/DACs - Special Purpose Part Context

This part belongs to the MAX125/MAX126 family of 14-bit DAS devices. The 'MAX126' designation specifies the ±2.5V input range, distinguishing it from the MAX125 which supports ±5V. The 'E' suffix denotes the extended industrial temperature range (-40°C to +85°C), while 'C' indicates commercial range.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX125CEAX+D serves as a direct functional replacement for the MAX126CEAX in systems requiring the same pinout and specifications but utilizing the MAX125 variant's ±5V input range instead of ±2.5V. No other cross-model substitutes are documented.