TPC2190M-QFNR

Digital To Analog Converters Overview

The TPC2190M-QFNR is an 8-channel, 16-bit high-precision voltage-output digital-to-analog converter (DAC) from the TPC219 family. It features a 2.5V internal reference with low drift and supports flexible output configurations via selectable gain options of 1/2, 1, or 2, enabling full-scale output voltages of 1.25V, 2.5V, or 5V. The device operates on a single analog supply (VDD: 2.7V to 5.5V) and a separate digital I/O supply (VIO: 1.7V to 5.5V). Key electrical characteristics include typical INL of ±1LSB at 16-bit resolution, a maximum output current capability of 20mA, and a power-on reset circuit that defaults outputs to midscale. Communication is handled via a 4-wire SPI interface with optional CRC error checking.

Digital To Analog Converters Feature Summary

• High Accuracy: 16-bit resolution with typical Integral Nonlinearity (INL) of ±1LSB and Differential Nonlinearity (DNL) of ±0.5LSB.
• Integrated Reference: Built-in 2.5V internal reference with temperature coefficient of 8ppm/°C, reducing external component count.
• Flexible Output Configuration: User-selectable gain settings (1/2, 1, 2) allow for full-scale output ranges of 1.25V, 2.5V, or 5V.
• Robust Digital Interface: Supports 4-wire SPI with daisy-chain operation and CRC-8 error checking for data integrity.

Digital To Analog Converters Applications

• Industrial automation systems requiring precise multi-channel control
• Optical networking equipment needing stable voltage references
• Data acquisition systems utilizing high-resolution signal generation

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'M' indicates the Power-On Reset level is set to Midscale, distinguishing it from the standard 'QFNR' variant which resets to Zero Scale. Confirm the package type is QFN3X3-16. Ensure the design accounts for the separate VIO supply requirement for digital communication levels.

Digital To Analog Converters Selection Notes

Select this part when 8 synchronized channels are required in a compact footprint. The 'M' suffix is critical if system initialization requires outputs to start at midscale rather than zero scale. Consider the 20mA output drive capability against load requirements; heavier loads may require external buffering. Verify SPI timing constraints align with the host microcontroller's capabilities.

Digital To Analog Converters Part Context

This component belongs to the TPC219 family, which includes pin-compatible variants with 14-bit (TPC2191) and 12-bit (TPC2192) resolutions. The TPC2190 specifically offers 16-bit performance. Other variants in the series differ primarily in resolution and default reset states, allowing designers to optimize cost and performance based on application precision needs.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible replacements within the same family include TPC2190-QFNR (Zero Scale reset) and TPC2190-WLPR (WLCSP package). For lower resolution needs, TPC2192-QFNR is compatible but offers 12-bit accuracy. No cross-family substitutes are confirmed in public documentation.