Rainbow-electronics MAX5515 Manual do Utilizador descarregar pdf (Página 3)

MAX5512–MAX5515

Dual, Ultra-Low-Power,

8-Bit, Voltage-Output DACs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

= +1.8V to +5.5V, OUT_ unloaded, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REFERENCE INPUT (MAX5512/MAX5514)

Reference-Input Voltage Range V

REFIN

Normal operation 4.1 MΩ

Reference-Input Impedance R

REFIN

In shutdown 2.5 GΩ

REFERENCE OUTPUT (MAX5513/MAX5515)

No external load, V

= 1.8V 1.197 1.214 1.231

No external load, V

= 2.5V 1.913 1.940 1.967

No external load, V

= 3V 2.391 2.425 2.459

Initial Accuracy V

REFOUT

No external load, V

= 5V 3.828 3.885 3.941

Output-Voltage Temperature

Coefficient (Note 4)

TEMPCO

= -40°C to +85°C 12 30 ppm/°C

Line Regulation V

REFOUT

< V

- 200mV (Note 5) 12 200 µV/V

0 ≤ I

REFOUT

≤ 1mA, sourcing, V

= 1.8V,

REF

= 1.2V

0.3 2

0 ≤ I

REFOUT

≤ 8mA, sourcing, V

= 5V,

REF

= 3.9V

0.3 2

Load Regulation

-150µA ≤ I

REFOUT

≤ 0, sinking 0.2

µV/µA

0.1Hz to 10Hz, V

REF

= 3.9V 150

10Hz to 10kHz, V

REF

= 3.9V 600

0.1Hz to 10Hz, V

REF

= 1.2V 50

Output Noise Voltage

10Hz to 10kHz, V

REF

= 1.2V 450

µV

P-P

= 5V 30

Short-Circuit Current (Note 6)

= 1.8V 14

C ap aci ti ve Load S tab i l i ty Rang e( N ote 7) 0 to 10 nF

Thermal Hysteresis (Note 8) 200 ppm

REFOUT unloaded, V

= 5V 5.4

Reference Power-Up Time

(from Shutdown)

REFOUT unloaded, V

= 1.8V 4.4

Long-Term Stability 200

ppm/

1khrs

DAC OUTPUTS (OUTA, OUTB)

Capacitive Driving Capability C

1000 pF

= 5V, V

OUT

set to full scale, OUT

shorted to GND, source current

= 5V, V

OUT

set to 0V,

OUT shorted to V

, sink current

D D

= 1.8V , V

OU T

set to ful l scal e, OU T

shor ted to G N D , sour ce cur r ent

Short-Circuit Current (Note 6)

= 1.8V, VOUT set to 0V,

OUT shorted to V

, sink current

1 2 3 4 5 6 7 8 ... 22 23

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