MAX174BCWI+

Analog To Digital Converters (ADC) Overview

The MAX174BCWI+ is a complete 12-bit analog-to-digital converter featuring an on-chip clock and buried zener voltage reference. It utilizes BiCMOS construction to achieve 150mW power dissipation with a maximum conversion time of 8μs. The device supports unipolar (0 to +10V or 0 to +20V) and bipolar (±5V or ±10V) input ranges via pin strapping. It offers three-state data outputs compatible with 8-, 12-, and 16-bit microprocessor buses, with a maximum data access time of 150ns. The internal reference provides low drift and noise performance.

Analog To Digital Converters (ADC) Feature Summary

• Complete ADC integration including high-speed successive approximation architecture, internal clock, and precision buried zener voltage reference.
• Versatile analog input structure allowing configurable unipolar or bipolar ranges through simple pin strapping without external scaling components.
• Standard microprocessor interface supporting 8-, 12-, and 16-bit wide buses with three-state data outputs controlled by dedicated logic inputs.
• Monolithic BiCMOS construction ensuring low power consumption and guaranteed no missing codes over the specified temperature range.

Analog To Digital Converters (ADC) Applications

• Digital signal processing systems requiring precise analog front-end conversion.
• High-accuracy process control loops demanding stable 12-bit resolution.
• High-speed data acquisition networks utilizing standard bus architectures.
• Electro-mechanical systems integrating sensor feedback with digital controllers.

Analog To Digital Converters (ADC) Procurement Notes

Verify the suffix 'W' indicates the Wide SO package and '+' denotes lead-free compliance per RoHS standards. Confirm the 'C' grade specifies the commercial temperature range of 0°C to +70°C. Ensure the ordering code matches the specific speed and accuracy class required for the application environment. Cross-reference the datasheet revision to confirm pinout consistency.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a complete 12-bit ADC solution is needed without external reference or clock circuitry. The MAX174 variant offers the fastest 8μs conversion time suitable for high-bandwidth signals. Verify that the supply voltages align with the required ±12V/±15V or ±15V configurations. Consider the 150ns access time for system timing constraints and ensure the thermal dissipation of 150mW fits the board layout.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX174/MX574A/MX674A family of industry-standard complete 12-bit ADCs. The MAX174 represents the highest speed variant within the series, while the MX574A and MX674A offer slower conversion times at potentially lower costs. All variants share the same pinout and functional architecture, differing primarily in speed grades and temperature ranges.

Analog To Digital Converters (ADC) Replacement Considerations

MX574AJK/L/T/U: Slower conversion speed (15μs max). MX674AK/L/T/U: Intermediate conversion speed (15μs max). These parts are functionally compatible but differ in timing specifications. Verify that the system timing margins accommodate the slower cycle times if substituting with these variants.