Datasheet

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DAC7553
SLAS477 – SEPTEMBER 2005
ELECTRICAL CHARACTERISTICS (continued)
V
DD
= 2.7 V to 5.5 V, V
REF
= V
DD
, 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
(3)
2.7 5.5 V
I
DD
(normal operation) DAC active and excluding load current
V
DD
= 3.6 V to 5.5 V 300 440
V
IH
= IOV
DD
and V
IL
= GND µA
V
DD
= 2.7 V to 3.6 V 250 400
I
DD
(all power-down modes)
V
DD
= 3.6 V to 5.5 V 0.2 2
V
IH
= IOV
DD
and V
IL
= GND 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%
(3) IOV
DD
operates down to 1.8 V with slightly degraded timing, as long as V
IH
= IOV
DD
and V
IL
= GND.
4