MAX187CCWE+

Analog To Digital Converters (ADC) Overview

The MAX187CCWE+ is a single-channel, 12-bit successive-approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply with an input voltage range of 0 to VREF and achieves a throughput rate of 75ksps. The device features an internal track/hold circuit with a 1.5µs acquisition time and communicates via a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. It is housed in a 16-pin Wide SO package and supports an operating temperature range of 0°C to +70°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 12-bit SAR architecture with on-chip clock and fast track/hold circuitry
• Low-power operation with shutdown mode reducing current to under 10µA
• Flexible reference configuration supporting both internal buffered and external precision references
• Compact 16-pin Wide SO surface-mount packaging for space-constrained designs

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 'C' indicates the commercial temperature grade (0°C to +70°C) and 'WE+' denotes the 16-pin Wide SO package with lead-free/RoHS compliance. Confirm that the internal reference is enabled by pulling the SHDN pin high, as floating this pin disables it for external reference use. Ensure the REF pin is properly bypassed with a 4.7µF capacitor when utilizing the internal reference for specified accuracy.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX187CCWE+ when a single-ended 12-bit conversion at 75ksps is required with minimal external component count. This part is suitable for applications needing an internal reference to save board space compared to the MAX189 variant. Consider the 16-pin SO package for surface-mount assembly requirements. Verify that the source impedance remains below 5kΩ to maintain the specified 1.5µs acquisition time without additional buffering.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX187/MAX189 family of low-power, 12-bit serial ADCs. The MAX187 variant distinguishes itself by including an on-chip buffered 4.096V reference, whereas the MAX189 requires an external reference. Both share identical performance characteristics regarding resolution, speed, and interface compatibility, differing primarily in reference implementation and pin functionality related to the SHDN control.

Analog To Digital Converters (ADC) Replacement Considerations

MAX187CEWE+