Dual, Serial-Input,

Voltage-Output, 12-Bit MDAC

10

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Figure 6. Daisy-chained or individual MAX532s are simultaneously updated by bringing

CS high when using the 3-wire interface

(

LDAC = DGND).

SCLK

DIN

CS

TO OTHER

SERIAL DEVICES

MAX532

SCLK

DIN

CS

DOUT

LDAC

+5V

+5V

+5V

1k

1k

MAX532

SCLK

DIN

CS

DOUT

LDAC

MAX532

SCLK

DIN

CS

DOUT

LDAC

SCLK

DIN

CS

MAX532

SCLK

DIN

CS

LDAC

1k

Figure 7. Multiple devices sharing a common DIN line may be simultaneously updated by bringing

LDAC low. CS1, CS2, CS3, . . .,

are driven separately, thus controlling which data are written to devices 1, 2, 3, . . . .

CS

LDAC

SCLK

DIN

CS

LDAC

SCLK

DIN

MAX532

CS

LDAC

SCLK

DIN

TO OTHER

SERIAL DEVICES

MAX532

MAX532

DIN

SCLK

LDAC

CS1

CS2

CS3