MAX174ACWI+

Analog To Digital Converters (ADC) Overview

The MAX174ACWI+ is a 12-bit successive approximation analog-to-digital converter (ADC) in a 28-pin SOIC package. It integrates an internal buried zener voltage reference and on-chip clock, requiring only decoupling capacitors for operation. The device supports unipolar input ranges of 0 to +10V or 0 to +20V, and bipolar ranges of ±5V or ±10V via pin strapping. It operates with a digital supply of 4.5V to 5.5V and analog supplies of ±12V or ±15V. Key electrical parameters include a maximum conversion time of 8μs, 150ns data access time, and 150mW power dissipation at ±15V supplies.

Analog To Digital Converters (ADC) Feature Summary

• Complete monolithic BiCMOS construction integrating ADC, clock, and precision reference
• Versatile analog input structure supporting multiple unipolar and bipolar voltage spans
• Standard microprocessor interface compatible with 8-, 12-, and 16-bit bus architectures
• Low power consumption achieved through advanced semiconductor technology

Analog To Digital Converters (ADC) Applications

• Digital signal processing systems
• High-accuracy process control instrumentation
• High-speed data acquisition modules
• Electro-mechanical system monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ACWI+' against the manufacturer's current datasheet to confirm temperature range and package details. Confirm RoHS compliance status as manufacturing processes may evolve. Check for obsolescence notices or product change notifications prior to final design approval.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a complete 12-bit ADC solution with integrated reference is required to minimize external components. Ensure the application can accommodate the specified ±12V or ±15V analog supply rails. Verify that the parallel interface timing meets the microprocessor system requirements.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX174/MX574A/MX674A family of industry-standard 12-bit ADCs. While sharing core architecture, variants differ in speed and temperature rating. The MAX174 offers the fastest conversion time among the group. The 'A' grade indicates tighter linearity specifications compared to lower grades.

Analog To Digital Converters (ADC) Replacement Considerations

MX574AKEWI+T: Similar 12-bit SAR ADC but with different conversion speed and potentially different operating conditions. MX674AK/L/T/U: Slower conversion times than the MAX174. Direct pin-compatible replacements within the same family should be evaluated for timing and accuracy differences.