Electrical Characteristics (Continued)
e
Note 13); all other limits T
e
V
10.000 V , V
DC CC
11.4 V
T
to 15.75 V
DC
e
25 C.
unless otherwise noted. Boldface limits apply from T
to T (see
MAX
REF
DC
MIN
e
§
A
J
Tested
Design
Limit
See
Typ
Symbol
Parameter
Conditions
Limit
Units
Note
(Note 10)
(Note 5)
(Note 6)
AC CHARACTERISTICS
e
e
e
e
t
t
Current Setting Time
V
V
0V, V
0V, V
5V
5V
1.0
50
ms
s
IL
IH
Write and XFER
Pulse Width Min.
320
W
IL
IH
8
320
e
e
e
e
e
e
e
e
t
t
t
t
Data Setup Time Min.
V
IL
V
IL
V
IL
V
IL
0V, V
0V, V
0V, V
0V, V
5V
5V
5V
5V
70
30
60
0
320
DS
DH
CS
CH
IH
IH
IH
IH
320
Data Hold Time Min.
90
ns
90
Control Setup Time Min.
Control Hold Time Min.
320
320
10
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified operating conditions.
Note 2: All voltages are measured with respect to GND, unless otherwise specified.
Note 3: This 500 mW specification applies for all packages. The low intrinsic power dissipation of this part (and the fact that there is no way to significantly modify
the power dissipation) removes concern for heat sinking.
d
Note 4: Both I
and I
must go to ground or the virtual ground of an operational amplifier. The linearity error is degraded by approximately V
V
. For
REF
OUT1
e
OUT2
10V then a 1 mV offset, V , on I
OS
example, if V
REF
or I
will introduce an additional 0.01% linearity error.
OUT2
OS OUT1
Note 5: Tested and guaranteed to National’s AOQL (Average Outgoing Quality Level).
e
Note 6: Design limits are guaranteed but not 100% tested. These limits are not used to calculate outgoing quality levels. Guaranteed for V
a
10V to 10V.
11.4V to 15.75V
CC
e
b
and V
REF
Note 7: The unit FSR stands for full-scale range. Linearity Error and Power Supply Rejection specs are based on this unit to eliminate dependence on a particular
value to indicate the true performance of the part. The Linearity Error specification of the DAC1208 is 0.012% of FSR(max). This guarantees that after
V
REF
performing a zero and full-scale adjustment, the plot of the 4096 analog voltage outputs will each be within 0.012%
c
V
of a straight line which passes through
REF
zero and full-scale. The unit ppm of FSR(parts per million of full-scale range) and ppm of FS(parts per million of full-scale) are used for convenience to define specs
6
e
output voltage quantity. For example, the gain error tempco spec of 6 ppm of FS/ C represents a worst-case full-scale gain error change with temperature from
of very small percentage values, typical of higher accuracy converters. In this instance, 1 ppm of FSR
g
V
/10 is the conversion factor to provide an actual
REF
§
b
6
3
/10 )(125 C) or 0.75 (10 ) V
b
a
40 C to 85 C of (6)(V
g
g
g
which is 0.075% of V .
REF
§
§
§
Note 8: This spec implies that all parts are guaranteed to operate with a write pulse or transfer pulse width (t ) of 320 ns. A typical part will operate with t of only
REF
REF
W
and t to apply.
S
W
100 ns. The entire write pulse must occur within the valid data interval for the specified t , t , t
W DS DH
Note 9: To achieve this low feedthrough in the D package, the user must ground the metal lid. If the lid is left floating the feedthrough is typically 6 mV.
Note 10: Typicals are at 25 C and represent the most likely parametric norm.
§
Note 11: A 10 nA leakage current with R
b
9
3
c
e
e
c
10V corresponds to a zero error of (10 10
c c
20 10 ) 100% 10V or 0.002% of FS.
20k and V
Fb
REF
Note 12: Human body model, 100 pF discharged through a 1.5 kX resistor.
b
Note 13: Tested limit for 1 suffix parts applies only at 25 C.
§
Connection Diagrams
Dual-In-Line Package
Dual-In-Line Package
TL/H/5690–2
See Ordering Information
3
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