TLV5623I

8-Bit Voltage Output DAC
Programmable Settling Time vs Power Consumption
      3 ms in Fast Mode
      9 ms in Slow Mode
Ultra Low Power Consumption:
     900 mW Typ in Slow Mode at 3 V
     2.1 mW Typ in Fast Mode at 3 V
Differential Nonlinearity . . . <0.2 LSB Typ
Compatible With TMS320 and SPI Serial Ports
Power-Down Mode
Buffered High-Impedance Reference Input
Monotonic Over Temperature
Available in MSOP Package

The TLV5623I is a 8-bit voltage output digital-toanalog converter (DAC) with a flexible 4-wire serial interface. The 4-wire serial interface allows glueless interface to TMS320, SPI, QSPI, and Microwire serial ports. The TLV5623 is programmed with a 16-bit serial string containing 4 control and 12 data bits. Developed for a wide range of supply voltages, the TLV5623 can operate from 2.7 V to 5.5 V.

The resistor string output voltage of the TLV5623I is buffered by a x2 gain rail-to-rail output buffer. The buffer features a Class AB output stage to improve stability and reduce settling time. The settling time of the DAC is programmable to allow the designer to optimize speed versus power dissipation. The settling time is chosen by the control bits within the 16-bit serial input string. A high-impedance buffer is integrated on the REFIN terminal to reduce the need for a low source impedance drive to the terminal.