MAX1231ACEG+T

Analog To Digital Converters (ADC) Overview

The MAX1231ACEG+T is a 12-bit successive-approximation analog-to-digital converter (ADC) featuring an internal temperature sensor, FIFO buffer, and internal reference. It supports up to 16 single-ended or 8 differential input channels with configurable unipolar/bipolar modes. The device operates on a +2.7V to +3.6V supply, achieving sampling rates up to 300ksps via an external clock or internally timed modes. Key specifications include ±1 LSB INL/DNL, 70dB SNR, and a 10MHz SPI-compatible serial interface. It is housed in a 24-pin QSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 16-entry FIFO for handling multiple conversions without bus contention
• On-chip temperature sensor with specified accuracy over the operating range
• Configurable analog multiplexer supporting true differential and single-ended inputs
• AutoShutdown mode for low-power operation

Analog To Digital Converters (ADC) Applications

• Data-acquisition systems
• Industrial control systems
• Patient monitoring equipment
• System supervision circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'EG' corresponds to the 24-pin QSOP package and the 'T' indicates tape-and-reel packaging as per manufacturer documentation. Confirm lead-free/RoHS compliance status through official datasheets or component markings. Ensure the ordering code matches the required temperature grade and pin configuration before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 16-channel acquisition is required within a 12-bit resolution constraint. Verify that the system power budget accommodates the specified supply voltage range of 2.7V to 3.6V. Consider the internal reference stability if external precision references are not utilized. Ensure the host microcontroller supports the required SPI timing modes and clock frequencies.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1227/MAX1229/MAX1231 family of 12-bit ADCs. The MAX1231 variant specifically provides 16 input channels, whereas the MAX1229 offers 12 and the MAX1227 offers 8. All share identical architecture, including the SAR core, FIFO, and temperature sensor capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional substitutes within the same family include MAX1227 and MAX1229 variants, provided channel count requirements are met. Cross-family replacements require verification of pin compatibility, resolution, and interface standards.