SLAS189C – MARCH 1999 – REVISED JANUARY 2004
2.7-V TO 5.5-V LOW-POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS
WITH INTERNAL REFERENCE AND POWER DOWN
• 12-Bit Voltage Output DAC
• Programmable Internal Reference
• Programmable Settling Time vs Power
– 1 µs in Fast Mode
– 3.5 µs in Slow Mode
• Compatible With TMS320
• Differential Nonlinearity . . . <0.5 LSB Typ
• Voltage Output Range . . . 2x the Reference
• Monotonic Over Temperature
DW OR PW PACKAGE
• Digital Servo Control Loops
• Digital Offset and Gain Adjustment
• Industrial Process Control
• Machine and Motion Control Devices
• Mass Storage Devices
The TLV5639 is a 12-bit voltage output digital-to-analog converter (DAC) with a microprocessor compatible
parallel interface. It is programmed with a 16-bit data word containing 4 control and 12 data bits. Developed for a
wide range of supply voltages, the TLV5639 can be operated from 2.7 V to 5.5 V.
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 versus power dissipation. Because of its ability to source up to 1 mA, the internal
reference can also be used as a system reference. With its on-chip programmable precision voltage reference,
the TLV5639 simplifies overall system design. The settling time and the reference voltage can be chosen by the
control bits within the 16-bit data word.
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 20-pin SOIC and TSSOP packages in standard commercial and industrial temperature ranges.
0°C to 70°C
-40°C to 85°C
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2004, Texas Instruments Incorporated