MAX1157BEUI+

Analog To Digital Converters (ADC) Overview

The MAX1157BEUI+ is a 14-bit successive-approximation analog-to-digital converter (ADC) in a 28-pin TSSOP package. It operates from a single +4.75V to +5.25V analog supply and interfaces with digital logic ranging from +2.7V to +5.25V. The device features a wide parallel interface, an internal clock, and automatic power-down modes. It accepts a unipolar analog input voltage range of 0 to +10V. Key electrical specifications include a maximum sampling rate of 135ksps, ±1LSB integral nonlinearity (INL), and ±1LSB differential nonlinearity (DNL). The part is specified for operation over the -40°C to +85°C extended temperature range.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 135ksps sampling rate
• Unipolar analog input range of 0 to +10V
• Wide parallel data interface compatible with +2.7V to +5.25V digital logic
• ±1LSB max INL and DNL accuracy

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Precision instrumentation
• Data-acquisition systems
• I/O modules

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distribution channels due to discontinuation status. Confirm package integrity and pin alignment upon receipt. Ensure storage conditions adhere to moisture sensitivity level requirements prior to soldering. Review manufacturer documentation for any product change notices or material declarations relevant to compliance standards.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and 135ksps throughput are required for unipolar signals up to +10V. The separate digital supply allows flexible interfacing with lower voltage microprocessors. Consider the internal reference option for simplified designs or external references for higher precision needs. Evaluate power consumption requirements against the shutdown mode capabilities if battery life is critical.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1157/MAX1159/MAX1175 family of single-supply ADCs. The MAX1157 variant specifically supports a 0 to +10V input range, whereas the MAX1159 supports ±10V and the MAX1175 supports ±5V. All variants share identical architecture, pinouts, and performance characteristics except for the analog input scaling circuitry.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional substitutes within the same family include the MAX1157ACUI and MAX1157BCUI, which differ primarily in temperature range and linearity specifications. Cross-family replacements require verification of pin compatibility and interface timing constraints.