Datasheet

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ELECTRICAL CHARACTERISTICS (Continued)
DAC7558
SLAS435A – MAY 2005 – REVISED DECEMBER 2005
V
DD
= 2.7 V to 5.5 V, VREF = VDD, R
L
= 2 k Ω to GND; C
L
= 200 pF to GND; all specifications –40°C to 105°C, unless
otherwise specified
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
POWER REQUIREMENTS
V
DD
, IOV
DD
(1)
2.7 5.5 V
I
DD
(normal operation) DAC active and excluding load current
V
DD
= 3.6 V to 5.5 V 1.1 1.8 mA
V
IH
= IOV
DD
and V
IL
= GND
V
DD
= 2.7 V to 3.6 V 1 1.7
I
DD
(all power-down modes)
V
DD
= 3.6 V to 5.5 V V
IH
= IOV
DD
and V
IL
= GND 0.2 2 µA
V
DD
= 2.7 V to 3.6 V 0.05 2
POWER EFFICIENCY
I
OUT
/I
DD
I
LOAD
= 2 mA, V
DD
= 5 V 93%
(1) IOV
DD
operates down to 1.8 V with slightly degraded timing, as long as V
IH
= IOV
DD
and V
IL
= GND.
4