Rainbow-electronics MAX5159 Manual do Utilizador descarregar pdf (Página 3)

MAX5158/MAX5159

Low-Power, Dual, 10-Bit, Voltage-Output DACs

with Serial Interface

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ELECTRICAL CHARACTERISTICS—MAX5158 (continued)

= +5V ±10%, V

REFA

= V

REFB

= 2.048V, R

= 10kΩ, C

= 100pF, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are

at T

= +25°C (OS_ tied to AGND for a gain of +2V/V).)

Note 1: Accuracy is specified from code 2 to code 1023.

Note 2: Accuracy is better than 1LSB for V

OUT

_ greater than 6mV and less than V

- 50mV. Guaranteed by PSRR test at the

end points.

Note 3: Digital inputs are set to either V

or DGND, code = 0000 hex, R

= ∞.

Note 4: SCLK minimum clock period includes rise and fall times.

CS = V

, f

DIN

= 100kHz, V

SCLK

= 5Vp-p

SOURCE

= 2mA

(Note 4)

(Note 3)

Rail-to-rail (Note 2)

To 1/2LSB of full-scale, V

STEP

= 4V

SINK

= 2mA

SCLK Pulse Width Low

CONDITIONS

ns40t

SCLK Pulse Width High

nV-s5Digital Crosstalk

nV-s5Digital Feedthrough

µs25Time Required to Exit Shutdown

kΩ24 34R

OS_

OSA or OSB Input Resistance

ns100t

SCLK Clock Period

µA0 ±1Reference Current in Shutdown

µA2 10I

DD(SHDN)

Power-Supply Current

in Shutdown

mA0.5 0.65I

Power-Supply Current

V4.5 5.5V

Positive Supply Voltage

ns40t

SDI Setup Time

- 0.5V

Output High Voltage

CSH

SCLK Rise to CS Rise Hold Time

ns40t

CSS

CS Fall to SCLK Rise Setup Time

LOAD

= 200pF

V0 to V

Output Voltage Swing

µs8Output Settling Time

LOAD

= 200pF

ns80

V0.13 0.4V

Output Low Voltage

V/µs0.75SRVoltage Output Slew Rate

UNITSMIN TYP MAXSYMBOLPARAMETER

DO2

SCLK Fall to DOUT

Valid Propagation Delay

ns80t

DO1

SCLK Rise to DOUT

Valid Propagation Delay

ns0t

SDI Hold Time

ns100t

CSW

CS Pulse Width High

ns40t

CS1

CS Rise to SCLK Rise Hold

ns10t

CS0

SCLK Rise to CS Fall Delay

DIGITAL OUTPUTS (DOUT, UPO)

DYNAMIC PERFORMANCE

POWER SUPPLIES

TIMING CHARACTERISTICS

1 2 3 4 5 6 7 8 ... 15 16

MAX5158/MAX5159 1

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