MAX198ACNI+

ADCs/DACs - Special Purpose Overview

The MAX198ACNI+ is a multirange, 12-bit data-acquisition system (DAS) from Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and provides six analog input channels with software-selectable ranges: ±VREF, ±VREF/2, 0V to +VREF, and 0V to +VREF/2. The device features a 100ksps throughput rate, 6µs conversion time, and a 12-bit parallel interface. It includes an internal 4.096V reference or supports external references, with fault protection up to ±16.5V. The component is housed in a 28-pin narrow plastic DIP package and operates within a temperature range of 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution with 1/2LSB linearity
• Six analog input channels with software-selectable unipolar/bipolar ranges
• Single +5V supply operation with fault-protected inputs (±16.5V)
• Internal 4.096V reference or external reference capability

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 'ACNI+' against the manufacturer's current product status, as older Maxim Integrated part numbers may have been discontinued or superseded by newer revisions. Confirm that the 28-pin narrow plastic DIP package meets the mechanical requirements for the target PCB design. Ensure compatibility with the required operating temperature range of 0°C to +70°C for the intended application environment.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX198ACNI+ when a single-supply, 12-bit DAS with flexible input ranging is required. Choose this model over the MAX196 if the application utilizes voltage ranges directly proportional to the reference voltage (±VREF, etc.) rather than scaled ranges (±10V, ±5V). Ensure the system can accommodate the 28-pin DIP footprint and that the parallel bus interface timing aligns with the microprocessor specifications.

ADCs/DACs - Special Purpose Part Context

The MAX198 is part of the MAX196/MAX198 family of multirange data acquisition systems. While the MAX196 offers scaled input ranges like ±10V and ±5V, the MAX198 provides ranges directly tied to the reference voltage (±VREF, ±VREF/2). Both devices share similar architectures, including 12-bit resolution, 100ksps sampling rates, and single +5V operation, but differ in their analog input scaling factors and specific range configurations.

ADCs/DACs - Special Purpose Replacement Considerations

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