Datasheet

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DAC8830
DAC8831
SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= T
MIN
to T
MAX
, V
DD
= +3 V or V
DD
= +5 V, V
REF
= +2.5 V unless otherwise noted.
DAC8830, DAC8831
PARAMETER CONDITIONS MIN TYP MAX UNIT
REFERENCE INPUT
Reference input voltage range 1.25 V
DD
V
Unipolar mode 9
Reference input impedance
(4)
k Ω
Bipolar mode, DAC8831 7.5
Reference – 3dB bandwidth, BW Code = FFFFh 1.3 MHz
Reference feedthrough Code = 0000h, V
REF
= 1 V
PP
at 100 kHz 1 mV
Signal-to-noise ratio, SNR 92 dB
Code = 0000h 75
Reference input capacitance pF
Code = FFFFh 120
DIGITAL INPUTS
V
DD
= 2.7 V 0.6
V
IL
Input low voltage V
V
DD
= 5 V 0.8
V
DD
= 2.7 V 2.1
V
IH
Input high voltage V
V
DD
= 5 V 2.4
Input current ± 1 μ A
Input capacitance 10 pF
Hysteresis voltage 0.4 V
POWER SUPPLY
V
DD
Power-supply voltage 2.7 5.5 V
V
DD
= 3 V 5 20
I
DD
Power-supply current μ A
V
DD
= 5 V 5 20
V
DD
= 3 V 15 60
Power μ W
V
DD
= 5 V 25 100
TEMPERATURE RANGE
Specified performance – 40 +85 ° C
(4) Reference input resistance is code-dependent, minimum at 8555h.
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