MAX544 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX544

+5V, Serial-Input, Voltage-Output, 14-Bit DACs

Maxim Integrated 

+5V, Serial-Input, Voltage-Output, 14-Bit DACs

MAX545

PIN

1

2

3

4

5

6

7

8

9

10

11

12

13

14

NAME

RFB

OUT

AGNDF

AGNDS

REFS

REFF

CS

SCLK

N.C.

DIN

LDAC

DGND

INV

VDD

Pin Descriptions (continued)

FUNCTION

Feedback Resistor. Connect to external op amp’s output in bipolar mode.

DAC Output Voltage

Analog Ground (force)

Analog Ground (sense)

Voltage Reference Input (sense). Connect REFS to external +2.5V reference.

Voltage Reference Input (force). Connect REFF to external +2.5V reference.

Chip-Select Input

Serial-Clock Input. Duty cycle must be between 40% and 60%.

No Connection. Not internally connected.

Serial-Data Input

LDAC Input. A falling edge updates the internal DAC latch.

Digital Ground

Junction of internal scaling resistors. Connect to external op amp’s inverting input in

bipolar mode.

+5V Supply Voltage

tCSH1

tLDACS

CS

;;;;;;;;; SCLK

tCSHO

DIN

tCSSO

tCH

tDH

tDS

D13

tCL

D12

tCSS1

S0

LDAC*

*MAX545 ONLY

tLDAC

Figure 1. Timing Diagram

6 _______________________________________________________________________________________

Share Link: