MAX186ACPP+

ADCs/DACs - Special Purpose Overview

The MAX186ACPP+ is a 12-bit data-acquisition system featuring an 8-channel multiplexer, high-bandwidth track/hold, and serial interface. It operates on a single +5V or dual ±5V supply with software-configurable unipolar/bipolar and single-ended/differential inputs. The device integrates an internal 4.096V reference and supports SPI, QSPI, and MICROWIRE interfaces. Key electrical parameters include a 133kHz sampling rate, 1.5mA operating current, and 2µA power-down current. It is housed in a 20-pin PDIP package and functions within a commercial temperature range of 0°C to +70°C.

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
• Software-selectable unipolar or bipolar input configurations

ADCs/DACs - Special Purpose Applications

• Portable Data Logging
• High-Accuracy Process Control
• Battery-Powered Instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific grade 'A' designation for the MAX186ACPP+ variant against official Analog Devices documentation, as availability may vary by package type. Confirm RoHS compliance status for the lead-free PDIP package suffix. Ensure the ordering suffix matches the required temperature range and pin configuration before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX186ACPP+ when an integrated internal reference is required, distinguishing it from the MAX188 which needs an external reference. Choose this component over parallel-interface alternatives like the MAX180/MAX181 if serial connectivity via SPI or Microwire is preferred. Verify that the 133ksps sampling rate and 12-bit accuracy meet the application's dynamic specifications.

ADCs/DACs - Special Purpose Part Context

The MAX186ACPP+ belongs to the MAX186/MAX188 family of low-power, 8-channel, serial 12-bit ADCs manufactured by Analog Devices Inc./Maxim Integrated. This series combines a multiplexer, track/hold, and SAR ADC in a compact form factor. The 'A' grade indicates tighter DC accuracy specifications compared to B, C, or D grades, while the 'CPP+' suffix denotes the 20-pin PDIP package with lead-free/RoHS compliance.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX188CCPP+ serves as a functional substitute but requires an external reference voltage since it lacks the internal reference found in the MAX186. Other MAX186 variants (EPP+, CAP+) offer different temperature ranges or packages but share the same core functionality.