Datasheet

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ELECTRICAL CHARACTERISTICS
DAC8830
DAC8831
SLAS449D – FEBRUARY 2005 – REVISED SEPTEMBER 2007
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
STATIC PERFORMANCE
Resolution 16 bits
DAC8830ICD,
DAC8831ICD, ± 0.5 ± 1
DAC8831ICRGY
DAC8830IBD,
Linearity error DAC8831IBD, ± 0.5 ± 2 LSB
DAC8831IBRGY
DAC8830ID,
DAC8831ID, ± 0.5 ± 4
DAC8831IRGY
Differential linearity error All grades ± 0.5 ± 1 LSB
T
A
= +25 ° C ± 1 ± 5
Gain error LSB
T
A
= – 40 ° C to +85 ° C ± 7
Gain drift ± 0.1 ppm/ ° C
T
A
= +25 ° C ± 0.25 ± 1
Zero code error LSB
T
A
= – 40 ° C to +85 ° C ± 2
Zero code drift ± 0.05 ppm/ ° C
OUTPUT CHARACTERISTICS
All devices Unipolar operation 0 +V
REF
V
Voltage output
(1)
DAC8831 only Bipolar operation – V
REF
+V
REF
V
Output impedance 6.25 k Ω
Settling time To 1/2 LSB of FS, C
L
= 10 pF 1 μ s
Slew rate
(2)
C
L
= 10 pF 25 V/ μ s
Digital-to-analog glitch 1 LSB change around major carry 35 nV-s
Digital feedthrough
(3)
0.2 nV-s
DAC8830 10
Output noise T
A
= +25 ° C nV/ √ Hz
DAC8831 18
Power-supply rejection V
DD
varies ± 10% ± 1 LSB
R
FB
/ R
INV
1 Ω / Ω
Bipolar resistor
DAC8831 only
matching
Ratio error ± 0.0015 ± 0.0076 %
T
A
= +25 ° C ± 0.25 ± 5
Bipolar zero error DAC8831 only LSB
T
A
= – 40 ° C to +85 ° C ± 7
Bipolar zero drift DAC8831 only ± 0.2 ppm/ ° C
(1) The DAC8830 output is unipolar (0 V to +V
REF
). The DAC8831 output is bipolar ( ± V
REF
) when it connects to an external buffer (see the
Bipolar Output Operation section for details).
(2) Slew rate is measured from 10% to 90% of transition when the output changes from 0 to full-scale.
(3) Digital feedthrough is defined as the impulse injected into the analog output from the digital input. It is measured when the DAC output
does not change; CS is held high, while SCLK and DIN signals are toggled.
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Product Folder Link(s): DAC8830 DAC8831