MAX188DCAP

Analog To Digital Converters (ADC) Overview

The MAX188DCAP is a 12-bit successive-approximation analog-to-digital converter featuring an 8-channel multiplexer and high-bandwidth track/hold circuit. It operates on a single +5V or dual ±5V supply with a sampling rate of 133ksps. The device utilizes a 4-wire serial interface compatible with SPI, QSPI, and Microwire standards. Unlike the MAX186, this variant requires an external reference voltage applied to the VREF pin. It offers software-configurable unipolar/bipolar and single-ended/differential input modes within a 20-pin SSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates an 8-channel analog multiplexer with a high-bandwidth track/hold amplifier for efficient multi-point data acquisition.
• Features a flexible 4-wire serial interface that connects directly to standard microprocessor protocols without requiring external logic gates.
• Supports both internal clock generation and external clock driving for conversion timing control.
• Provides multiple power-down modes accessible via hardware shutdown pin or software commands to minimize energy consumption.

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific grade suffix (D) corresponds to the required accuracy specifications for your application. Confirm the SSOP package dimensions match your PCB footprint constraints. Ensure the external reference voltage source meets the stability requirements specified in the electrical characteristics table for optimal performance.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX188DCAP when an external precision reference is preferred over an integrated one. This model is suitable for designs requiring 12-bit resolution with 8 input channels. Consider the thermal dissipation limits of the SSOP package if operating near maximum temperature ranges. Verify compatibility with the host processor's serial clock speed capabilities.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX186/MAX188 family of low-power, serial 12-bit ADCs manufactured by Maxim Integrated. The primary distinction between the MAX186 and MAX188 variants is the reference voltage configuration; the MAX188 relies on an external reference while the MAX186 includes an internal one. Both share identical architecture and pinouts.

Analog To Digital Converters (ADC) Replacement Considerations

MAX186DCAP serves as a functional substitute if an internal reference is acceptable. MAX188EAP+ offers the same electrical functionality in a lead-free RoHS-compliant SSOP package. Cross-reference pinout compatibility before substitution.