MAX125CEAX+TD

ADCs/DACs - Special Purpose Overview

The MAX125CEAX+TD 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 ±5V analog supplies and offers fault-protected inputs tolerant to ±17V. It utilizes a bidirectional parallel interface compatible with DSPs and microprocessors, allowing programmable sequencing of one to four channels per CONVST pulse.

ADCs/DACs - Special Purpose Feature Summary

• Four simultaneous-sampling T/H amplifiers with two multiplexed inputs each, totaling eight single-ended inputs
• Internal +2.5V reference or external reference operation with buffered output
• Programmable on-board sequencer for 1–4 channel conversion modes
• Fault-protected input multiplexer rated for ±17V overvoltage tolerance

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix against manufacturer documentation to confirm package type and temperature range. Confirm RoHS compliance status through official datasheets or component markings. Ensure supply voltage requirements match the ±5V specification for proper functionality.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX125 variant for ±5V input ranges or MAX126 for ±2.5V ranges. Verify that the required sampling throughput aligns with the specified rates: 250ksps for single-channel, decreasing to 76ksps for four-channel simultaneous sampling. Ensure the operating temperature range covers -40°C to +85°C for the CEAX suffix.

ADCs/DACs - Special Purpose Part Context

This component belongs to the MAX125/MAX126 family of 14-bit data acquisition systems. It is designed for applications requiring precise phase information preservation across multiple channels. The SSOP-36 package provides a compact solution for multichannel signal conditioning in industrial and automotive environments.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include MAX125CCAX for commercial temperature ranges. Cross-family substitutes require verification of interface compatibility and input voltage ranges.