MAX197ACWI+

ADCs/DACs - Special Purpose Overview

The MAX197ACWI+ is a multi-range, 12-bit data-acquisition system (DAS) requiring a single +5V supply. It features eight analog input channels with software-selectable ranges: ±10V, ±5V, 0V to +10V, or 0V to +5V. The device provides a 100ksps throughput rate and 6µs conversion time using successive approximation architecture. It includes an internal 4.096V reference or supports external references, with overvoltage protection up to ±16.5V on all inputs. The component utilizes an 8+4 parallel bus interface compatible with TTL/CMOS logic.

ADCs/DACs - Special Purpose Feature Summary

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

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'ACWI+' against the manufacturer's current product status documentation. Distributor listings indicate potential discontinuation for related variants in the MAX197 family. Confirm RoHS compliance and package integrity (28-Wide SOIC) prior to procurement. Cross-reference the ordering information table in the official datasheet to ensure the part number matches the required temperature range and package type.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a single-supply 12-bit ADC with multi-range input flexibility is required. The MAX197ACWI+ is suitable for interfacing sensors with varying voltage levels (e.g., 4mA-to-20mA, ±12V) to a +5V system without external signal conditioning. Ensure the application can accommodate the 8+4 parallel interface timing constraints and that the 100ksps sampling rate meets the system bandwidth requirements.

ADCs/DACs - Special Purpose Part Context

The MAX197 series consists of multi-range, 12-bit DAS devices from Maxim Integrated (now Analog Devices). The ACWI+ variant specifically denotes the commercial temperature range (0°C to +70°C) and the 28-pin Wide SOIC package. Other variants include DIP, SSOP, and military-grade options. The device integrates a track/hold amplifier, reference buffer, and input multiplexer into a single chip.

ADCs/DACs - Special Purpose Replacement Considerations

For different input ranges (±4V, ±2V, 0V to 4V, 0V to 2V), refer to the MAX199. For 12-bit bus interfaces with different pinouts, consult the MAX196 and MAX198 data sheets. Verify pin compatibility and electrical specifications before substituting with other ADC families.