TPC2190-QFNR

Digital To Analog Converters Overview

The TPC2190-QFNR is an 8-channel, 16-bit high-precision voltage-output digital-to-analog converter (DAC) from the TPC219 family. It features a pin-compatible design with 14-bit and 12-bit variants. The device integrates a 2.5V internal reference with low drift (5ppm/°C typical). It supports flexible output configurations via user-selectable gain options of 1/2, 1, or 2, enabling full-scale output voltages of 1.25V, 2.5V, or 5V. Communication occurs through a 4-wire SPI-compatible serial interface supporting daisy-chain operation and CRC error checking. The part 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), characterized for temperatures from -40°C to +125°C.

Digital To Analog Converters Feature Summary

• 16-bit resolution with typical INL of ±1LSB and DNL of ±0.5LSB
• Integrated 2.5V internal reference with 5ppm/°C temperature coefficient
• User-selectable gain (1/2, 1, 2) for 1.25V, 2.5V, or 5V full-scale outputs
• High output current capability of 20mA per channel

Digital To Analog Converters Applications

• Industrial automation systems
• Optical networking equipment
• Data acquisition systems

Digital To Analog Converters Procurement Notes

Verify the ordering suffix QFNR corresponds to the QFN3X3-16 package and tape-and-reel delivery format. Confirm that the specific revision matches the required application specifications. Ensure compatibility with the host system's SPI timing requirements, particularly regarding the 20MHz maximum SCLK frequency and setup/hold times.

Digital To Analog Converters Selection Notes

Select the TPC2190-QFNR when 16-bit resolution and 8 channels are required. Choose this part over TPC2192 if higher precision is needed, as the TPC2192 offers 12-bit resolution. Consider the integrated 2.5V reference to reduce external component count. Verify that the QFN3X3-16 package fits the PCB layout constraints compared to the WLCSP option.

Digital To Analog Converters Part Context

The TPC2190-QFNR belongs to the TPC219 family of high-accuracy DACs. This family includes pin-compatible parts with varying resolutions: TPC2190 (16-bit), TPC2191 (14-bit), and TPC2192 (12-bit). All members share the same functional block diagram and interface protocols, allowing for design flexibility across different accuracy requirements within the same product line.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible replacements within the same family include TPC2190-WLPR (WLCSP package) and TPC2190M-QFNR (mid-scale reset option). For lower resolution needs, TPC2192-QFNR is compatible. External replacement requires verifying SPI timing, supply voltage ranges, and thermal characteristics.