AD5116 datasheet(21/28 Pages) AD

Part #	AD5116

Description	Single-Channel, 128-/64-/32-Position, I2C, 8% Resistor Tolerance, Nonvolatile Digital Potentiometer

PDF	28 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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21 / 28 page

Data Sheet

AD5110/AD5112/AD5114

THEORY OF OPERATION

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Rev. D | 21 of 28

WRITE OPERATION

When writing to the AD5110/AD5112/AD5114, the user must begin

with a start command followed by an address byte (R/W = 0), after

which the AD5110/AD5112/AD5114 acknowledge that it is prepared

to receive data by pulling SDA low.

Two bytes of data are then written to the DAC, the most significant

byte, followed by the least significant byte. Both of these data bytes

are acknowledged by the AD5110/AD5112/AD5114. A stop condi-

tion follows. The write operations for the AD5110/AD5112/AD5114

are shown in Figure 41, Figure 42, and Figure 43.

A repeated write function gives the user flexibility to update the

device a number of times after addressing the part only once, as

shown in Figure 44.

Figure 41. AD5110 Interface Write Command

Figure 42. AD5112 Interface Write Command

Figure 43. AD5114 Interface Write Command

AD5116 Datasheet(PDF) 21 Page - Analog Devices