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Back to December 1998 Integration

Variable-speed serial DACs

The TLV5604, TLV5614 and TLV5616 are 10- and 12-bit serial voltage-output DACs that feature programmable settling times as fast as 3 µs (typ) at 5 V, allowing designers to choose the appropriate speeds for their applications.

The three devices are designed for low power consumption to extend battery life and dissipate less heat, with the TLV5616 typically dissipating only 900 mW in the slow mode at 3 V. All of the converters come with a power-down feature to save energy when they are not being accessed.

Support for supply voltages from 2.7 V to 5.5 V enables a wide range of applications. A glueless interface to TMS320, SPI, QSPI and Microwire serial ports simplifies design.

The resistor string output voltage is buffered by an x2-gain rail-to-rail output buffer. For flexibility in design, the TLV5604 and TLV5614 have a separate supply for the digital serial interface and DACs. These two devices also can update multiple DACs simultaneously.

All three devices are suited for battery-powered test instruments, industrial process controls, machine and motion control devices, communications, digital servo control loops, mass storage devices and a variety of other applications.

The TLV5604 and TLV5614 are available in 16-pin SOIC and TSSOP packages, and the TLV5616 in an 8-pin SOIC package. Suggested resale pricing per unit in quantities of 1,000 is $4.90 for the TLV5604, $9.50 for the TLV5614 and $3.15 (U.S. dollars) for the TLV5616.

TLV5604 features 10-bit voltage output quadruple DAC Programmable settling time vs ultra-low power: 2.5 µs/9 mW (typ), 8.5 µs/3 mW (typ) Dual 2.7-V to 5.5-V supply (separate digital and analog supplies

TLV5614 features 12-bit voltage output quadruple DAC Programmable settling time vs power: 3 µs/9.6 mW (typ), 9 &181;s/3.6 mW (typ) Dual 2.7-V to 5.5-V supply (separate digital and analog supplies)

TLV5616 features 12-bit voltage output DAC Programmable settling time vs ultra-low power consumption: 3µs/2.1 mW (typ), 9 µs/900 mW (typ) Single 2.7-V to 5.5-V supply

For complete information, order: Data Sheets (SLAS176A, SLAS188, SLAS152A) and Application Report (SLAA034). See Related Product Information.