MAX197BENI+

ADCs/DACs - Special Purpose Overview

The MAX197BENI+ is a multi-range, 12-bit data-acquisition system (DAS) requiring a single +5V supply. It features eight analog input channels independently programmable for ±10V, ±5V, 0V to +10V, or 0V to +5V ranges, increasing effective dynamic range to 14 bits. The device offers a 100ksps throughput rate with a 6µs conversion time and includes an internal 4.096V reference or external reference capability. It provides fault-protected inputs tolerant to ±16.5V and utilizes an 8+4 parallel bus interface compatible with standard microprocessors.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution with 1/2LSB Linearity
• Software-Selectable Input Ranges: ±10V, ±5V, 0V to 10V, 0V to 5V
• Fault-Protected Input Multiplexer (±16.5V)
• Single +5V Operation with Internal or External Reference

ADCs/DACs - Special Purpose Applications

• Industrial-Control Systems
• Data-Acquisition Systems
• Automatic Testing Systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range of -40°C to +85°C compared to commercial variants. Confirm package type matches the 28-pin DIP requirement. Check RoHS compliance status as '+'. Ensure the component is sourced from authorized distributors due to potential obsolescence in the MAX197 family.

ADCs/DACs - Special Purpose Selection Notes

Select this part when interfacing sensors with varying voltage levels (e.g., 4mA-to-20mA, ±12V, ±15V) to a single +5V system. Choose the MAX197BENI+ over the MAX197AENI+ if tighter gain error specifications are required. Ensure the application supports parallel bus interfaces and requires software-selectable input ranges without external multiplexers.

ADCs/DACs - Special Purpose Part Context

The MAX197BENI+ belongs to the MAX197 family of multi-range data acquisition systems. It shares core architecture with the MAX197AENI+ but differs in electrical accuracy specifications, specifically gain error. The 'NI+' suffix denotes a non-flammable epoxy lead-free package with RoHS compliance. It is distinct from the MAX199, which offers different range combinations.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The MAX197 series is generally considered legacy; verify availability of direct replacements through manufacturer announcements.