MAX541ACSA データシートの表示（PDF） - Maxim Integrated

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MAX541ACSA

+5V, Serial-Input, Voltage-Output, 16-Bit DACs

Maxim Integrated 

+5V, Serial-Input, Voltage-Output, 16-Bit DACs

________________________________________________Pin Descriptions (continued)

MAX542

PIN

NAME

FUNCTION

1

RFB

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

2

OUT

DAC Output Voltage

3

AGNDF

Analog Ground (force)

4

AGNDS

Analog Ground (sense)

5

REFS

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

6

REFF

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

7

CS

Chip-Select Input

8

SCLK

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

9

N.C.

No Connection. Not internally connected.

10

DIN

Serial Data Input

11

LDAC

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

12

DGND

Digital Ground

13

INV

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

bipolar mode.

14

VDD

+5V Supply Voltage

tCSH1

tLDACS

CS

;;;;;;;;; SCLK

tCSHO

DIN

tCSSO

tCH

tDH

tDS

D15

tCL

D14

tCSS1

D0

LDAC*

*MAX542 ONLY

tLDAC

Figure 1. Timing Diagram

6 _______________________________________________________________________________________

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