NCT7290MNTXG

ADCs/DACs - Special Purpose Overview

The NCT7290MNTXG is a serially programmable voltage and temperature monitor manufactured by onsemi. It integrates a 16-channel analog-to-digital converter (ADC) with 10-bit resolution, two 12-bit digital-to-analog converters (DACs), and an internal temperature sensor. The device supports both I²C and SPI interfaces for register access and configuration. It operates within a digital supply range of 3.0 V to 3.6 V and an analog supply range of 4.5 V to 5.5 V. The component features local and remote temperature sensing capabilities, eight general-purpose input/output (GPIO) pins, and an ALERT output for out-of-limit conditions.

ADCs/DACs - Special Purpose Feature Summary

• 16 Analog Voltage Inputs: Multiplexed into two 10-bit SAR ADCs with a maximum input range of 0 V to 2.5 V.
• 12 DAC Output Channels: Two banks of 12-bit resistor-string DACs providing outputs up to 5 V or 12 V.
• Temperature Monitoring: On-chip sensor with ±3°C accuracy and remote diode support with automatic series resistance cancellation.
• Dual Interface Support: Compatible with standard I²C protocols (up to 400 kHz) and 4-wire SPI (up to 5 MHz).
• 8 GPIO Pins: Programmable digital inputs or outputs with configurable logic levels.

ADCs/DACs - Special Purpose Applications

• Cellular base stations
• Server systems
• Industrial controls

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix MNTXG corresponds to the QFN-56 package in a 2000-unit tape and reel configuration. Confirm RoHS compliance and Pb-Free status as specified in the manufacturer's documentation. Ensure interface selection via BUS_SEL pin aligns with system design requirements before integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component when multiple analog voltage monitoring points and precise voltage generation are required in a single IC. The dual supply architecture (AVDD and VDD) allows separation of analog and digital noise. Verify that the external DAC power rails (5VDAC and 12VDAC) match the target output voltage ranges for VOUT1–VOUT12.

ADCs/DACs - Special Purpose Part Context

The NCT7290 belongs to the NCT72 family of temperature monitors from onsemi. It is housed in a 56-lead QFN package (8 × 8 × 0.5 mm). The specific part number NCT7290MNTXG denotes the version packaged in tape and reel format for automated surface-mount assembly.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.