8-Bit DACs from only $0.31 per DAC

Product features

Quad and Octal 8-bit DACs
3-wire serial interface
High impedance reference inputs
Programmable voltage output of 1X or 2X V-ref
Double buffered latches
Simultaneous update
+5 V supply
10 mW maximum power
Linearity: ±1 LSB8-Bit

The TLC5620 and TLC5628 are quad and octal 8 bit DACs respectively in a single package. Both versions provide a 3-wire serial interface, voltage output programmable for 1x or 2x the reference voltage, high impedance reference voltage inputs, double buffered latches for simultaneous updates, and single +5 V supply that dissipates only 10 mW maximum. The serial interface operates at clock frequencies up to 1 Mhz. This feature set allows designers greater flexibility than comparable DACs. And the low pin count reduces the cost compared to using multiple, single DACs. The TLC5620CD equates to $0.47 per DAC and the TLC5628CDW equates to only $0.31 per DAC*. Typical applications include:

Digitally Controlled Amplifier/Attenuator
Mobile Communications
Automatic Test Equipment
Process Control
Signal Synthesis
Programmable Voltage Source

TLC5620

The TLC5620 contains 4 DACs in single 14 pin package. Each DAC has a separate, high impedance reference voltage input for flexibility of output voltages. The programmable output voltage at 1x or 2x is the reference input for each DAC. Digital input/control are done via a 3-wire CMOS compatible serial bus. The serial interface uses an eleven-bit word to select the address, digital value and gain for each DAC. The DAC registers are double buffered for simultaneous update of all DACs.

TLC5628

The TLC5628 contains 8 voltage output DACs in a 16 pin package. The operation and feature set are similar to the quad, TLC5620. TLC5628 has two, high impedance reference voltage inputs, each reference feeds four DACs. Each DACs output voltage can be programmed to 1x or 2x the reference. The DACs are programmed via a 12-bit word using three-wire serial interface. The registers are double buffered for simultaneous update.

Suggested resale price

Quoted per device in quantities of 1,000
TLC5620CD: $1.85
TLC5628CDW: $2.47

Available Options


Operating Temperature         SOIC (D & DW)       Plastic DIP (N)

0° C to 70° C  		      TLC5620CD               TLC5620CN

			      TLC5628CWD              TLC5628CN

-40 C to 85 C                 TLC5620ID               TLC5628IN

                              TLC5628IDW              TLC5620IN

Options* Based on suggested resale pricing in quanities of 1K units.

Vol 12, Summer, 1995