The TLV5620 and TLV5628 are quad and octal 8 bit DACs in a single package. Both CMOS devices operate from single 3 V supply and dissipate 6.6 mW and 13.2 mW (max.) respectively, making these devices excellent solutions for battery powered and power sensitive applications. The feature set for both devices includes: a CMOS compatible 3-wire serial interface, high impedance reference voltage inputs, and double buffered latches for simultaneous updates. Each DACÕs output voltage can be programmed to 1x or 2x the reference. These unique features allow designers greater flexibility than comparable DACs. In addition the low pin count reduces system cost and board space compared to multiple, single DACs. The TLV5620CD equates to $0.64 per DAC and the TLV5628CDW equates to only $0.43 per DAC.
Typical applications include:
The TLV5620 contains 4 DACs in single 14 pin package. Each DAC has a separate, high impedance reference voltage input for flexibility of output voltages. The serial interface uses an eleven-bit word to select the address, digital value and gain for each DAC and operates at clock frequencies up to 1 MHz.
The TLV5628 contains 8 voltage output DACs in a 16 pin package with operation and feature set are similar to the quad device. TLV5628 has two high impedance reference voltage inputs, each reference feeds four DACs. The DACs are programmed via a 12-bit word using the three-wire serial interface.
Vol 14, December, 1995
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