DAC80508 datasheet(39/59 Pages) TI2

Part #	DAC80508

Description	DACx0508 Octal, 16-, 14-, 12-Bit, SPI, Voltage Output DAC with Internal Reference

PDF	59 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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39 / 59 page

DAC Code

512

1024

1536

2048

2560

3072

3584

4096

-10

-5

D001

DAC80508, DAC70508, DAC60508

www.ti.com

SLASEL1D – JUNE 2017 – REVISED AUGUST 2018

Product Folder Links: DAC80508 DAC70508 DAC60508

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It is important to note that the maximum code of a 12-bit DAC is 4095; code 4096 was used to simplify the

equation above. For practical use, the true output span will encompass a range of –10 V to (10 V – 1 LSB),

which in this case is –10 V to 9.995 V.

9.2.3 Application Curve

The ±10 V output span with a reference voltage of 2.5 V can be achieved by using values of 30 k

Ω, 10 kΩ, and

7.5 k

Ω for R3, R2, and R1 respectively. A curve to illustrate this output span is shown in Figure 79. Note: 1%

tolerance resistors were used in evaluating bipolar operation.

Figure 79. Bipolar Operation

DAC80508 Datasheet(PDF) 39 Page - Texas Instruments