SWITCHING CHARACTERISTICS
(Voltages referenced to V , T = 0 to 85°C, C = 50 pF, Input t = t = 20 ns unless otherwise indicated)
SS
A
L
r
f
Symbol
Parameter
V
DD
Min
Max
Unit
t
Positive Pule Width, CLK (Figures 3 and 4)
Negative Pulse Width, CLK (Figure 3 and 4)
Setup Time, ENB to CLK (Figures 3 and 4)
5
10
15
2
1.5
1
—
—
—
µs
wH
t
5
10
15
5
3.5
2
—
—
—
µs
µs
ns
µs
µs
wL
t
5
10
15
5
3.5
2
—
—
—
su
t
Setup Time, D to CLK (Figures 3 and 4)
in
5
10
15
1000
750
500
—
—
—
su
t
t
Hold Time, CLK to ENB (Figures 3 and 4)
5
10
15
5
3.5
2
—
—
—
h
Hold Time, CLK to D (Figures 3 and 4)
in
5
10
15
5
3.5
2
—
—
—
h
t , t
r f
Input Rise and Fall Times
Input Capacitance
5 – 15
5 – 15
—
—
2
µs
C
7.5
pF
in
100
75
V
nonl
ACTUAL
50
IDEAL
25
V
offset
0
0
15
$0F
31
$1F
PROGRAM STEP
47
$2F
63
$3F
$00
LINEARITY ERROR (integral linearity). A measure of how
straightadevice’stransferfunctionis, itindicatestheworst–case
deviationof linearity of the actual transfer function from the best–
fit straight line. It is normally specified in parts of an LSB.
Figure 1. D/A Transfer Function
MC144110•MC144111
MOTOROLA
4