Specifications

www.digikey.com/maxim-industrial 19

Programmable logic controllers (PLCs)

Analog output functions

Benefits

• Simplifies board design

– Software-selectable voltage output or

current output

• Eliminates external components

– Integrated output buffer

– No additional discrete components

required for switching between output

modes

• Improves system reliability

– Supports analog power supplies up

to 37.5V

MAX5661

The MAX5661 DAC controls output voltage, output current, and output

gain adjustments. This device reduces the challenges that designers

face when laying out their analog and mixed-signal boards.

16-bit DAC with integrated voltage-and current-output conditioner reduces board

area and eliminates external components

A simplified block diagram of the MAX5661.

TO OUTPUT

CIRCUITRY

FULL-SCALE

OUTPUT ADJUST

OUTI

OUTV

MAX5661

SCLK

DIN

DAC

CONTROL

SHIFT

INPUT

FULL-SCALE

ADJUST

CLEAR

LDAC

DOUT

SOFTWARE

LOAD DAC

2-TO-1

MUX

DAC