Datasheet

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DAC8551
SLAS429B – APRIL 2005 – REVISED OCTOBER 2006
ELECTRICAL CHARACTERISTICS (continued)
V
DD
= 2.7V to 5.5V,and –40 ° C to +105 ° C range, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OUTPUT CHARACTERISTICS
(2)
Output voltage range 0 V
REF
V
To ± 0.003% FSR, 0200h to FD00h, R
L
= 2k Ω ,
8 10 µ s
0pF < C
L
< 200pF
Output voltage settling time
R
L
= 2k Ω , C
L
= 50 pF 12 µ s
Slew rate 1.8 V/ µ s
R
L
= ∞ 470 pF
Capacitive load stability
R
L
= 2k Ω 1000 pF
Code change glitch impulse 1LSB change around major carry 0.1
nV-s
Digital feedthrough 50k Ω series resistance on digital lines 0.1
DC output impedance At mid-code input 1 Ω
V
DD
= 5V 50
Short-circuit current mA
V
DD
= 3V 20
Coming out of power-down mode, V
DD
= 5V 2.5
Power-up time µ s
Coming out of power-down mode, V
DD
= 3V 5
AC PERFORMANCE
SNR 95
THD –85
BW = 20kHz, V
DD
= 5V, f
OUT
= 1kHz, 1st 19 harmonics removed
dB
for SNR calculation
SFDR 87
SINAD 84
REFERENCE INPUT
V
REF
= V
DD
= 5V 40 75 µ A
Reference current
V
REF
= V
DD
= 3.6V 30 45 µ A
Reference input range 0 V
DD
V
Reference input impedance 125 k Ω
LOGIC INPUTS
(2)
Input current ± 1 µ A
V
DD
= 5V 0.8
V
IN
L Input LOW voltage V
V
DD
= 3V 0.6
V
DD
= 5V 2.4
V
IN
H Input HIGH voltage V
V
DD
= 3V 2.1
Pin capacitance 3 pF
POWER REQUIREMENTS
V
DD
2.7 5.5 V
I
DD
(normal mode) Input code = 32768, no load, does not include reference current
V
DD
= 3.6V to 5.5V 160 250
V
IH
= V
DD
and V
IL
= GND µ A
V
DD
= 2.7V to 3.6V 140 240
I
DD
(all power-down modes)
V
DD
= 3.6V to 5.5V V
IH
= V
DD
and V
IL
= GND 0.2 2
µ A
V
DD
= 2.7V to 3.6V 0.05 2
POWER EFFICIENCY
I
OUT
/I
DD
I
LOAD
= 2mA, V
DD
= 5V 89 %
TEMPERATURE RANGE
Specified performance –40 +105 ° C
(2) Specified by design and characterization; not production tested.
3
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