Datasheet

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DAC8552
SLAS430A – JULY 2006 – REVISED OCTOBER 2006
ELECTRICAL CHARACTERISTICS (continued)
V
DD
= 2.7V to 5.5V, all specifications –40 ° C to +105 ° C (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
0pF < C
L
< 200pF
Output voltage settling time µ s
R
L
= 2k Ω ; C
L
= 500pF 12
Slew rate 1.8 V/ µ s
R
L
= ∞ 470
Capacitive load stability pF
R
L
= 2k Ω 1000
Code change glitch impulse 1LSB change around major carry 0.15 nV-s
Digital feedthrough 50k Ω series resistance on digital lines 0.15 nV-s
Full-scale swing on adjacent channel.
DC crosstalk 0.25 LSB
V
DD
= 5V, V
REF
= 4.096V
AC crosstalk 1kHz sine wave –100 dB
DC output impedance At mid-point 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 µ s
Power-up time
Coming out of power-down mode, V
DD
= 3V 5 µ s
AC PERFORMANCE
SNR 95
THD –85
BW = 20kHz, V
DD
= 5V, f
OUT
= 1kHz,
dB
1st 19 harmonics removed for SNR calculation
SFDR 87
SINAD 84
REFERENCE INPUT
V
REF
= V
DD
= 5.5V 90 120
Reference current µ A
V
REF
= V
DD
= 3.6V 60 100
Reference input range 0 V
DD
V
Reference input impedance 62 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
Input code = 32768, no load, does not include
I
DD
(normal mode)
reference current
V
DD
= 3.6V to 5.5V 340 500
V
IH
= V
DD
and V
IL
= GND µ A
V
DD
= 2.7V to 3.6V 310 480
I
DD
(all power-down modes)
V
DD
= 3.6V to 5.5V 0.7 2
V
IH
= V
DD
and V
IL
= GND µ A
V
DD
= 2.7V to 3.6V 0.4 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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