MAX186CEPP+

ADCs/DACs - Special Purpose Overview

The MAX186CEPP+ 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 and single-ended/differential inputs, and a 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. The component is housed in a 20-pin PDIP package and supports a sampling rate of 133ksps.

ADCs/DACs - Special Purpose Feature Summary

• 12-bit resolution with 8 single-ended or 4 differential input channels
• Internal 4.096V reference and reference-buffer amplifier
• Low power consumption: 1.5mA operating, 2µA full power-down
• Software-configurable unipolar/bipolar and single-ended/differential modes
• 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE

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 suffix 'C' corresponds to the required 0°C to +70°C temperature range and performance specifications. Confirm the 20-PDIP package dimensions match the design footprint. Ensure the ordering documentation explicitly lists the lead-free/RoHS-compliant status indicated by the '+' suffix.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX186CEPP+ when an integrated internal reference and 8-channel multiplexing are required for 12-bit precision. Choose this part over the MAX188 if an external reference is not desired. Verify that the 133ksps sampling rate and 1.5mA current consumption fit the system power budget. Ensure the serial interface timing aligns with the host microcontroller's SPI or Microwire capabilities.

ADCs/DACs - Special Purpose Part Context

The MAX186CEPP+ belongs to the MAX186/MAX188 family of low-power, 8-channel, serial 12-bit ADCs. The 'C' suffix denotes the commercial temperature grade (0°C to +70°C), while the 'E' suffix indicates the extended grade (-40°C to +85°C). The 'PP+' suffix specifies the 20-pin plastic DIP package with lead-free/RoHS compliance. This family combines a multiplexer, track/hold, and SAR ADC into a single monolithic IC.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX186EPP+ serves as a direct pin-compatible replacement offering an extended temperature range (-40°C to +85°C). The MAX188 series requires an external reference voltage instead of using the internal one. Other members of the MAX186 family include SO and SSOP package variants.