MAX186DCWP+

ADCs/DACs - Special Purpose Overview

The MAX186DCWP+ is a low-power, 8-channel, serial 12-bit analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It integrates an 8-channel multiplexer, high-bandwidth track/hold circuit, and successive-approximation conversion logic. The device operates on a single +5V or dual ±5V supply with a sampling rate of 133kS/s. Key electrical parameters include a resolution of 12 bits, DNL of ±1 LSB, INL of ±0.5 LSB, and power dissipation of 800mW in the SO package. It features an internal 4.096V reference, SPI/QSPI/MICROWIRE-compatible interface, and operates within a commercial temperature range of 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrates 8-channel multiplexer, track/hold, and 12-bit SAR ADC with 133kS/s sampling rate
• Operates on single +5V or dual ±5V supplies with ultra-low power consumption (1.5mA operating, 2µA power-down)
• Includes internal 4.096V reference and software-configurable unipolar/bipolar input modes
• Features 4-wire serial interface compatible with SPI, QSPI, MICROWIRE, and TMS320 DSPs

ADCs/DACs - Special Purpose Applications

• Portable data logging systems
• Data-acquisition applications
• High-accuracy process control
• Automatic testing equipment
• Battery-powered instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific grade 'D' for the MAX186DCWP+ variant against the manufacturer's datasheet specifications. Confirm that the 20-pin SO package matches the required PCB footprint. Ensure the commercial temperature range (0°C to +70°C) meets the system requirements, as industrial grades are available in other suffixes.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX186DCWP+ when an integrated internal reference and 8-channel multiplexing are required in a compact SO package. Choose this part over the MAX188 if external reference components are undesirable. Verify that the source impedance of analog inputs remains below 5kΩ to maintain acquisition time specifications without additional buffering capacitors.

ADCs/DACs - Special Purpose Part Context

The MAX186DCWP+ belongs to the MAX186/MAX188 family of low-power, 8-channel, serial 12-bit ADCs. The 'D' suffix denotes Grade D accuracy, while 'CWP+' indicates the commercial temperature range, SOIC-20 package, and lead-free/RoHS compliance. This component serves as a complete data-acquisition system combining analog front-end and digital conversion capabilities.

ADCs/DACs - Special Purpose Replacement Considerations

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