MAX192ACWP+

ADCs/DACs - Special Purpose Overview

The MAX192ACWP+ is a low-power, 8-channel, serial 10-bit analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It integrates an 8-channel multiplexer, high-bandwidth track/hold circuit, and successive approximation register (SAR) architecture. Operating on a single +5V supply, it supports software-configurable single-ended and differential inputs with sampling rates up to 133 kS/s. The device features a 4-wire serial interface compatible with SPI, QSPI, and Microwire standards. It includes an internal 4.096V reference and offers multiple power-down modes to minimize current consumption.

ADCs/DACs - Special Purpose Feature Summary

• 8-Channel Multiplexer: Supports single-ended or differential input configurations via software control.
• High-Speed Conversion: Achieves 133 kS/s sampling rate with 10-bit resolution using SAR architecture.
• Low Power Consumption: Operates at 1.5mA in active mode and reduces to under 10µA in full power-down.
• Integrated Reference: Contains an internal 4.096V reference with ±30ppm/°C typical drift.

ADCs/DACs - Special Purpose Applications

• Portable Data Logging
• Battery-Powered Instruments
• Medical Instruments
• Robotics

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type corresponds to the Wide SOIC-20 designation for the AC suffix. Confirm the temperature range matches the application requirements of 0°C to +70°C. Ensure compatibility with the system's serial clock polarity and phase settings for SPI/Microwire interfaces.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 8-channel multiplexed ADC is required with low power constraints. The internal reference simplifies design by reducing external component count. Consider the 133 kS/s limit for signal bandwidth requirements. Verify that the source impedance of analog inputs allows for the specified 1.5µs acquisition time.

ADCs/DACs - Special Purpose Part Context

The MAX192ACWP+ belongs to the MAX192 family of low-power serial ADCs. The 'AC' suffix indicates the commercial temperature range (0°C to +70°C), while 'WP' denotes the 20-pin Wide SOIC package. This part is pin-compatible with higher-resolution variants like the MAX186 and MAX188, facilitating potential upgrades without board redesign.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include the MAX192BCWP+ for identical specifications. For higher resolution, the MAX186ACWP+ and MAX188ACWP+ offer 12-bit performance with the same package and interface.