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. The device features a 4-wire serial interface compatible with SPI, QSPI, and Microwire protocols. Key electrical specifications include a sampling rate of 133 kS/s, an internal 4.096V reference, and power consumption of 1.5mA in operating mode and under 10µA in full power-down mode. It is housed in a 20-pin Wide SO package with an operating temperature range of 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• 8-Channel Multiplexer: Supports single-ended or differential input configurations via software control.
• Low Power Consumption: Draws 1.5mA during operation and reduces to under 10µA in full power-down mode.
• Internal Reference and Clock: Includes an internal 4.096V reference with ±30ppm/°C drift and an internal clock for simplified system design.
• Serial Interface Compatibility: Directly interfaces with SPI, QSPI, Microwire, and TMS320 DSPs without external logic.

ADCs/DACs - Special Purpose Applications

• Portable Data Logging
• Battery-Powered Instruments
• Medical Instruments
• Consumer Electronics

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix ACWP corresponds to the 20-pin Wide SO package and the 0°C to +70°C commercial temperature grade when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors, as environmental certifications may vary by production batch. Ensure the ordering part number matches the exact pinout and thermal characteristics required for the target PCB layout.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX192ACWP for applications requiring 10-bit resolution at 133 kS/s with minimal power usage. Choose this model over the MAX192AEWP if the operating environment remains within the commercial temperature range of 0°C to +70°C. Consider the Wide SO package for surface-mount assembly where space is constrained but leaded DIP packages are unsuitable. Verify that the system's serial clock frequency supports the required acquisition time of at least 1.5µs.

ADCs/DACs - Special Purpose Part Context

The MAX192ACWP belongs to the MAX192 family of low-cost, 10-bit data-acquisition systems. It is pin-compatible with the 12-bit MAX186 and MAX188, allowing for potential upgrades without redesigning the PCB. The 'AC' suffix denotes the commercial temperature range, while 'WP' specifies the 20-pin Wide SO plastic package. This component serves as a bridge between analog sensor signals and digital processing units in embedded systems.

ADCs/DACs - Special Purpose Replacement Considerations

The MAX192AEWP is a direct functional replacement offering an extended industrial temperature range (-40°C to +85°C) in the same 20-pin Wide SO package. For higher resolution needs, the MAX186/MAX188 series provides 12-bit accuracy with pin compatibility. Other MAX192 variants like MAX192ACPP (DIP) or MAX192ACAP (SSOP) share identical electrical performance but differ in physical packaging.