MAX187AEWE+

Analog To Digital Converters (ADC) Overview

The MAX187AEWE+ is a 12-bit successive-approximation analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It operates on a single +5V supply with an input range of 0 to VREF and achieves a throughput rate of 75ksps. The device features an internal track-and-hold circuit with a 1.5µs acquisition time and an 8.5µs conversion time. It includes a buffered internal reference voltage of 4.096V, ±½ LSB integral nonlinearity, and a 3-wire serial interface compatible with SPI, QSPI, and Microwire protocols. The component is housed in a 16-pin Wide SO package and supports an operating temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 4.096V buffered reference for simplified system design
• Low-power operation with 1.5mA active current and 10µA shutdown mode
• High-speed 3-wire serial interface compatible with standard microprocessor protocols
• Internal track-and-hold circuitry eliminates external hold capacitors

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Remote digital signal processing units
• Isolated data acquisition modules
• High-accuracy process control instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'E' indicates the extended industrial temperature range (-40°C to +85°C). Confirm the 'W' suffix corresponds to the 16-pin Wide SOIC package. Ensure the datasheet revision matches the required specifications for your application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this part when a single-channel, 12-bit resolution is required with low power consumption. Choose the MAX187 variant over MAX189 if an integrated reference is preferred to save board space. Verify that the 75ksps sampling rate meets the Nyquist requirements for the target signal bandwidth.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX187/MAX189 family of low-power, 12-bit serial ADCs. The series is designed for applications requiring high accuracy and minimal power usage. The MAX187 distinguishes itself by including an internal reference, whereas the MAX189 requires an external reference source.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the MAX187CEWE+ (commercial temperature range) or MAX187BEWE+ (higher accuracy grade). Ensure pinout compatibility between the 16-pin Wide SO packages before substitution.