
259
SPECIFICATIONS
(continued)
V
DD
= +5V, All V
IN
X= +0V, V
REF
L = 1.625, T
A
= 25
°
C for commercial–grade parts; T
MIN
≤
T
A
= T
MAX
for industrial–grade parts; specifications apply to all
DAC's unless noted otherwise.)
PARAMETER
MIN.
TYP.
MAX.
DAC OUTPUTS
Voltage Range
0
V
DD
– 1.5
Output Current
±
10
±
15
Capacitive Load
47,000
DIGITAL OUTPUT
Logic High
3.5
Logic Low
0.4
POWER REQUIREMENTS
Power Supply Range
4.75
5.00
5.25
Positive Supply Current
14
Power Dissipation
70
Operating Temperature Range
Commercial
0
+70
Industrial
–40
+85
Storage Temperature Range
–65
+150
Package
SP9840N
24–pin, 0.3" Plastic DIP
SP9840S
24–pin 0.3" SOIC
SP9843S
20–pin, 0.3" SOIC
UNIT
CONDITIONS
V
mA
pF
R
= 5k
, V
DD
= 4.75V
Note 7
No Oscillation
V
V
I
OH
= –0.4mA
I
OL
= 1.5mA
V
mA
mW
To rated specifications
PR = LOW
PR = LOW
°
C
°
C
°
C
Note 8
Notes:
1.
2.
3.
Code dependent
All V
(x) = GND; D = 55
Offset binary refers to the output voltage with respect to the signal ground at V
. For a positive
V
(x), the output will increase from negative fullscale to V
to positive (fullscale–1 LSB) as the
input code is incremented from 0 to 128 to 255. Note that when V
(x) is tied to ground and V
is
driven to +1.625V, as in the production tests above, then the resulting DC at V
OUT
(x) will decrease
from +2V
to V
/128 as the code is increased from 00
H
to FF
H
, due to the V
IN
(x) input being tied
negative with respect to V
.
The op amp limits linearity for V
<100mV. When V
(x) is driven above ground such that the
output voltage remains above 100mV, then the linearity specifications apply to all codes. For
V
=1.625V, and V
(x)=GND, codes 248 through 255 are not included in differential or integral
linearity tests. Integral and differential linearity are computed with respect to the best fit straight line
through codes 0 through 248.
SP9840 is measured between adjacent channels, F=100kHz. SP9843 is measured between
adjacent pairs, F=100kHz.
SP9843 only; measured between channels with shared input; D = 7F
H
to 80
H
V
< 10mV, V
= 1.625V, PR = LOW.
For plastic DIP, consult factory
4.
5.
6.
7.
8.