MAX155AEWI+

Analog To Digital Converters (ADC) Overview

The MAX155AEWI+ is an 8-bit, 8-channel analog-to-digital converter (ADC) featuring simultaneous track-and-hold inputs and a 2.5V internal reference. It operates from a single +5V supply or dual ±5V supplies, supporting unipolar and bipolar conversions in single-ended or differential modes. The device utilizes a successive approximation architecture with a 3.6µs conversion time per channel and stores results in an 8x8 RAM. It employs a parallel bidirectional interface for data access and configuration.

Analog To Digital Converters (ADC) Feature Summary

• Eight simultaneously sampling track-and-hold inputs eliminate timing differences between channel samples.
• Integrated 2.5V voltage reference reduces external component count.
• Internal 8x8 RAM stores conversion results for sequential readout via microprocessor interface.
• Flexible input configurations support mixed single-ended and differential signal types.

Analog To Digital Converters (ADC) Applications

• Phase-sensitive data acquisition systems
• Vibration analysis and waveform monitoring
• DSP-based analog input interfaces
• AC power metering applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range of -40°C to +85°C. Confirm the package type matches the wide SOIC-28 specification. Ensure the source document explicitly lists this part number as active or available for procurement before ordering.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX155 variant when eight independent analog channels are required. Choose the MAX156 if only four channels are needed. Verify that the 8-bit resolution and 250kS/s sampling rate meet system requirements. Consider the internal reference stability and power-down current specifications for low-power designs.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX155/MAX156 family of high-speed multichannel ADCs. It shares architectural similarities with the MAX156, which offers four channels instead of eight. Both devices utilize the same SAR core and simultaneous sampling technique within the Maxim Integrated portfolio.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified documentation. Consult manufacturer resources for recommended products or related parts compatible with this design.