OUT

REF

CODE

V

V

x

65536

D/A

Converter

Power-On

Reset

DAC

Register

Shift

Register

16

16

GND

CS

CLK

SDI

DAC8811

11

DAC8811

www.ti.com

SLAS411D – NOVEMBER 2004 – REVISED FEBRUARY 2016

Product Folder Links: DAC8811

Submit Documentation Feedback

Copyright © 2004–2016, Texas Instruments Incorporated

8

Detailed Description

8.1 Overview

The DAC8811 is a single channel current output, 16-bit digital-to-analog converter (DAC). The device includes a

3-wire serial interface to communicate with most DSPs.

8.2 Functional Block Diagram

8.3 Feature Description

The DAC8811 is a single channel current output, 16-bit digital-to-analog converter (DAC). The architecture,

illustrated in Figure 18, is an R-2R ladder configuration with the three MSBs segmented. Each 2R leg of the

potential by the use of an external I/V converter op amp. The R-2R ladder is connected to an external reference

impedance to the external reference of 5 k

Ω ±25%. The external reference voltage can vary in a range of -15 V

Figure 18. Equivalent R-2R DAC Circuit

Equation 1:

(1)