DAC 2-CH Resistor-String 12-bit 8-Pin SOIC T/R

The TLV5638 is a dual 12-bit voltage output DAC with a flexible 3-wire serial interface. The serial interface allows glueless interface to TMS320 and SPITM, QSPITM, and MicrowireTM serial ports. It is programmed with a 16-bit serial string containing 4 control and 12 data bits. The resistor string output voltage 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 programmable settling time of the DAC allows the designer to optimize speed vs power dissipation. With its on-chip programmable precision voltage reference, the TLV5638 simplifies overall system design. Because of its ability to source up to 1 mA, the reference can also be used as a system reference. Implemented with a CMOS process, the device is designed for single supply operation from 2.7 V to 5.5 V. It is available in an 8-pin SOIC package to reduce board space in standard commercial, industrial, and automotive temperature ranges. It is also available in JG and FK packages in the military temperature range.

Dual 12-Bit Voltage Output DAC

Programmable Internal Reference

Programmable Settling Time:

• 1 µs in Fast Mode,
• 3.5 µs in Slow Mode

Compatible With TMS320 and SPI^TM Serial Ports

Differential Nonlinearity <0.5 LSB Typ

Monotonic Over Temperature

Applications

• Digital Servo Control Loops
• Digital Offset and Gain Adjustment
• Industrial Process Control
• Machine and Motion Control Devices
• Mass Storage Devices