MAX198BCWI

ADCs/DACs - Special Purpose Overview

The MAX198BCWI is a 12-bit, 6-channel data acquisition system (DAS) from Analog Devices/Maxim Integrated. It operates on a single +5V supply while accepting analog input signals up to ±4V. The device features software-selectable input ranges including ±VREF, ±VREF/2, 0V to VREF, and 0V to VREF/2. Key electrical specifications include a 100ksps throughput rate, 6µs conversion time, and fault protection for inputs up to ±16.5V. It utilizes a 12-bit parallel interface and offers internal or external clock and reference options.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution with 1/2LSB linearity
• Single +5V Supply Operation
• Software-Selectable Input Ranges: ±VREF, ±VREF/2, 0V to VREF, 0V to VREF/2
• Fault-Protected Input Multiplexer (±16.5V)
• 6 Analog Input Channels

ADCs/DACs - Special Purpose Applications

• Industrial-Control Systems
• Robotics
• Data-Acquisition Systems
• Automatic Testing Systems
• Medical Instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'BCWI' against current manufacturer documentation to confirm package type (Wide SOIC), temperature range (0°C to +70°C), and lead content status. Cross-reference with official distributors to ensure availability of this specific variant, as older Maxim products may have limited stock or be subject to obsolescence notices.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX198BCWI when a multirange ADC is required that interfaces directly to a microprocessor via a 12-bit parallel bus. Ensure the application requires unipolar/bipolar ranges derived from the reference voltage rather than fixed voltages like ±10V (which are available in the MAX196 variant). Verify that the system can accommodate the Wide SO-28 package dimensions.

ADCs/DACs - Special Purpose Part Context

The MAX198 is part of the MAX196/MAX198 family of multirange, single-supply data acquisition systems. While the MAX196 supports fixed ranges such as ±10V and ±5V, the MAX198 scales its input ranges based on the reference voltage (VREF). Both devices share identical architecture, pinouts, and timing characteristics, differing primarily in their input scaling factors.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.