CLK

RS MODE

RNG

A

RNG

B

RNG

C

RNG

D

SIA

SIB

SIC

SID

ACT

DATA

DAC

EN

NOTE A: Data is written to the output of a DAC, and the data is latched to the output on the falling edge of EN. A control word then selects double-buffered mode. When the

range is changed, the output changes on the falling edge of EN.

RS

A1

A0

D7

D6

D5

D4

D3

D2

D1

D0

Figure 4. First Nonzero Write Operation After Startup