MAX186BCWP+T

ADCs/DACs - Special Purpose Overview

The MAX186BCWP+T 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 circuitry, and a successive-approximation ADC core. The device operates on a single +5V or dual ±5V supply and features software-configurable unipolar/bipolar and single-ended/differential inputs. It includes an internal 4.096V reference and a reference-buffer amplifier. The part utilizes a 4-wire serial interface compatible with SPI, QSPI, Microwire, and TMS320 DSPs, supporting sampling rates up to 133ksps.

ADCs/DACs - Special Purpose Feature Summary

• 12-bit resolution with 8 single-ended or 4 differential analog inputs
• Internal 4.096V reference voltage and reference-buffer amplifier
• Low power consumption: 1.5mA operating mode, 2µA power-down mode
• 133ksps sampling rate with internal track/hold circuit
• Software-selectable unipolar/bipolar input configurations

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the 'T' suffix indicates tape-and-reel packaging for surface-mount assembly. Confirm the 'B' grade meets specific linearity requirements relative to A, C, or D grades. Ensure the SOIC-20 package variant matches the PCB footprint design. Check RoHS compliance status for lead-free manufacturing standards.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an integrated 8-channel multiplexer and 12-bit precision are required in a small form factor. Choose the MAX186 over MAX188 if an internal reference is preferred to reduce external component count. Consider the SSOP package if board space is limited compared to standard SOIC packages.

ADCs/DACs - Special Purpose Part Context

This part belongs to the MAX186/MAX188 family of low-power serial ADCs. It shares architectural similarities with the MAX180/MAX181 parallel interface counterparts but offers reduced pin count via serial communication. The BCWP+ designation specifies the B accuracy grade, SOIC-20 package, commercial temperature range, and lead-free construction.

ADCs/DACs - Special Purpose Replacement Considerations

Direct functional substitutes within the same family include MAX186CCWP+ (C grade) or MAX186EWP+ (extended temperature). For parallel interface needs, consider the MAX180/MAX181 series. Verify pin compatibility and software register definitions when migrating between grades.