MAX186CEWP+

ADCs/DACs - Special Purpose Overview

The MAX186CEWP+ is a low-power, 8-channel, serial 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It integrates an 8-channel multiplexer, high-bandwidth track/hold circuitry, and a successive-approximation ADC core. The device operates on a single +5V or dual ±5V supply, consuming 1.5mA in operating mode and 2µA in power-down mode. It features an internal 4.096V reference, software-configurable unipolar/bipolar inputs, and a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. The component is housed in a 20-pin SO package and supports a sampling rate of 133ksps.

ADCs/DACs - Special Purpose Feature Summary

• 8-channel multiplexer with software-selectable single-ended or differential input configurations
• Internal 4.096V reference voltage with integrated buffer amplifier for gain trimming
• Ultra-low power consumption: 1.5mA active, reducible to under 10µA via power-down modes
• Flexible 4-wire serial interface supporting SPI, QSPI, MICROWIRE, and TMS320 DSP connections

ADCs/DACs - Special Purpose Applications

• Portable data logging systems
• High-accuracy process control instrumentation
• Automatic testing equipment
• Battery-powered medical instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'C' indicates the commercial temperature range (0°C to +70°C) and 'WP' denotes the 20-pin SO package. Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the ordering documentation specifies the grade (A, B, C, or D) if critical accuracy specifications are required for the design.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX186CEWP+ when an internal reference is preferred over external components. Choose this part over the MAX188 variant if an onboard 4.096V reference simplifies the board layout. Consider the package constraints of the 20-pin SO form factor against available PCB space. Verify that the 133ksps sampling rate and 12-bit resolution meet the system's dynamic performance requirements.

ADCs/DACs - Special Purpose Part Context

The MAX186CEWP+ belongs to the MAX186/MAX188 family of low-power data-acquisition systems. This series combines multiplexing, tracking, and conversion capabilities into a single monolithic IC. The 'C' grade defines the electrical characteristics for the commercial temperature range, distinguishing it from the extended temperature 'E' grade variants within the same product line.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.