MAX512 Ver la hoja de datos (PDF) - Maxim Integrated

Número de pieza

componentes Descripción

Fabricante

MAX512

Low-Cost, Triple, 8-Bit Voltage-Output DACs with Serial Interface

Maxim Integrated 

Low-Cost, Triple, 8-Bit Voltage Output DACs

with Serial Interface

TIMING CHARACTERISTICS (Note 4)

(VDD = +4.5V to +5.5V for MAX512, VDD = +2.7V to +3.6V for MAX513, VSS = GND = 0V, TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

SERIAL INTERFACE TIMING

–C—S– Fall to SCLK Rise Setup Time

SCLK Rise to –C—S– Rise Setup Time

DIN to SCLK Rise Setup Time

DIN to SCLK Rise Hold Time

SCLK Pulse Width High

SCLK Pulse Width Low

Output Delay LOUT

–C—S– Pulse Width High

SYMBOL

CONDITIONS

tCSS

tCSH

tDS

tDH

tCH

tCL

tOD

tCSPWH

CL = 100pF

Note 4: Guaranteed by design. Not production tested.

MIN TYP MAX UNITS

150

ns

150

ns

50

ns

50

ns

100

ns

100

ns

150

ns

200

ns

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

OUTPUT VOLTAGE vs.

OUTPUT SOURCE CURRENT (VDD = 3V)

3.5

DAC A

3

2.5

DAC B

2

1.5

OUTPUT VOLTAGE vs.

OUTPUT SOURCE CURRENT (VDD = 5V)

5.2

5.0

DAC A

4.8

DAC B

4.6

4.4

OUTPUT VOLTAGE vs.

OUTPUT SINK CURRENT

900

VDD = 3V, VSS = GND = 0V

800 REFAB = VDD

CODE = ALL 1s

700

DAC A

600

500

DAC B

400

1 VDD = 3V, VSS = GND = 0V

0.5

REFAB = VDD

CODE = ALL 1s

0

0.0001 0.001 0.01 0.1 1 10 100

OUTPUT SOURCE CURRENT (mA)

4.2

VDD = 5V, VSS = GND = 0V

4.0

REFAB = VDD

CODE = ALL 1s

3.8

0.0001 0.001 0.01 0.1 1 10 100

OUTPUT SOURCE CURRENT (mA)

300

200

100

0

0.0001 0.001 0.01 0.1 1 10 100

OUTPUT SINK CURRENT (mA)

TOTAL UNADJUSTED ERROR

vs. DIGITAL CODE (Dual Supplies)

12

VDD = +3V, VSS = -3V

10

REFAB = VSS, REFC = VDD

CODE = ALL 1s

8

TOTAL UNADJUSTED ERROR

vs. DIGITAL CODE (Single Supply)

0

DAC A LOADED WITH 5mA

-5

-10 DAC B LOADED WITH 0.5mA

POSITIVE SUPPLY CURRENT

vs. SUPPLY VOLTAGE

1.5

REFAB = REFC = VDD

1.4 ALL LOGIC INPUTS GROUNDED

1.3

1.2

6

4

2

0

-2

0

DAC A LOADED WITH 5mA

DAC B LOADED WITH 0.5mA

DAC A NO LOAD

DAC B NO LOAD

DAC C NO LOAD

32 64 96 128 160 192 224 255

DIGITAL CODE

-15

-20

-25

-30 VDD = 3V, VSS = GND = 0V

REFAB = 3V

-35

0 32 64 96 128 160 192 224 255

DIGITAL CODE

1.1

1.0

0.9

0.8

0.7

0.6

0.5

2.5 3.0 3.5 4.0 4.5 5.0 5.5

VDD (V)

4 _______________________________________________________________________________________

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