MAX1042BETX+

ADCs/DACs - Special Purpose Overview

The MAX1042BETX+ is a specialized data acquisition system integrating a multichannel 10-bit analog-to-digital converter (ADC) and a quad 10-bit digital-to-analog converter (DAC). It features an internal ±1°C accurate temperature sensor, configurable general-purpose I/O ports, and a 16-entry FIFO. The ADC supports up to eight single-ended or four differential channels with a 225ksps conversion rate. The DAC outputs settle within 2.0µs with low glitch energy of 4nV·s. Operating from a +4.75V to +5.25V analog supply and +2.7V to AVDD digital supply, it consumes 2.5mA at maximum throughput and under 0.2µA in shutdown mode.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 10-bit ADC with 8 single-ended or 4 differential inputs and 225ksps throughput
• Quad 10-bit DAC with 2.0µs settling time and 4nV·s glitch energy
• Internal 4.096V reference, ±1°C temperature sensor, and 16-word FIFO
• Four configurable GPIOs and SPI/QSPI/MICROWIRE-compatible serial interface

ADCs/DACs - Special Purpose Applications

• Closed-loop controls for optical components and base stations
• System supervision and control
• Data-acquisition systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the component is sourced from authorized distributors to ensure authenticity. Confirm the package type matches the 36-pin thin QFN-EP specification. Check RoHS compliance status as indicated by the '+' suffix. Ensure the operating environment stays within the -40°C to +85°C range.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX1042BETX+ when both ADC and DAC functionality are required alongside GPIOs. Choose this over the MAX1040 if four GPIOs are needed. Verify that the 10-bit resolution meets system accuracy requirements. Ensure the 225ksps sampling rate aligns with signal bandwidth needs.

ADCs/DACs - Special Purpose Part Context

The MAX1042BETX+ belongs to the MAX1040 family, which includes variants with different channel counts and GPIO configurations. It shares the same core architecture with the MAX1040, MAX1046, and MAX1048. The 'B' indicates a specific revision or grade, while 'ETX+' denotes the 36-pin thin QFN package with exposed pad and lead-free composition.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include the MAX1040BETX+, MAX1046BETX+, and MAX1048BETX+. Differences lie in ADC channel count and GPIO availability. Verify functional equivalence before substitution.