MAX521 datasheet(5/20 Pages) MAXIM

5 / 20 page

Quad/Octal, 2-Wire Serial 8-Bit DACs

with Rail-to-Rail Outputs

_______________________________________________________________________________________

Note 8: A master device must provide a hold time of at least 300ns for the SDA signal (referred to VIL of the SCL signal) in order to

bridge the undefined region of SCL’s falling edge.

Note 9: Cb = total capacitance of one bus line in pF. tR and tf measured between 0.3VDD and 0.7VDD.

Note 10: An input filter on the SDA and SCL input suppresses noise spikes less than 50ns.

Note 11: Guaranteed by design.

Hold Time, (Repeated) Start Condition

tHD, STA

0.6

µs

Low Period of the SCL Clock

tLOW

1.3

µs

High Period of the SCL Clock

tHIGH

0.6

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

Serial Clock Frequency

fSCL

400

kHz

Bus Free Time Between a STOP and a

START Condition

tBUF

1.3

µs

CONDITIONS

µs

Setup Time for a Repeated START Condition

tSU, STA

0.6

µs

Data Hold Time

tHD, DAT

0.9

µs

Data Setup Time

tSU, DAT

100

(Note 8)

Fall Time of SDA Transmitting (Note 6)

20 + 0.1Cb

250

Setup Time for STOP Condition

tSU, STO

0.6

µs

Capacitive Load for Each Bus Line

400

ISINK ≤ 6mA (Note 9)

Rise Time of Both SDA and SCL Signals, Receiving

20 + 0.1Cb

300

Fall Time of Both SDA and SCL Signals, Receiving

20 + 0.1Cb

300

(Note 9)

Pulse Width of Spike Suppressed

tSP

050

(Notes 10, 11)

TIMING CHARACTERISTICS

(VDD = 5V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

__________________________________________Typical Operating Characteristics

(VDD = 5V, DAC outputs unloaded, TA = +25°C, unless otherwise noted.)

-60

-30

120

150

MAX520

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

060

OPERATING MODE OR

SHUTDOWN MODE

-60

-30

120

150

MAX520

REFERENCE INPUT CURRENT vs.

TEMPERATURE (SHUTDOWN MODE)

TEMPERATURE (°C)

060

VREF = 4V

ONE REF INPUT DRIVEN

100k

10k

10M

MAX520

REFERENCE VOLTAGE INPUT

FREQUENCY RESPONSE

-16

-18

FREQUENCY (Hz)

-14

-12

-10

-8

-6

-4

-2

VDD = 5V

VREF = 4Vp-p SINE WAVE

CENTERED AT 2.5V

MAX521 Datasheet(PDF) 5 Page - Maxim Integrated Products

MAX521 Datasheet(HTML) 5 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Datasheet Download

Link URL