Datasheet

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    
SLIS010B − APRIL 1992 − REVISED MAY 2005
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
thermal resistance
PARAMETER TEST CONDITIONS MIN MAX UNIT
R
JA
Thermal resistance, junction-to-ambient
DW package
All 8 outputs with equal power
111
°C/W
R
θJA
Thermal resistance, junction-to-ambient
N package
All 8 outputs with equal power
108
°C/W
PARAMETER MEASUREMENT INFORMATION
TEST CIRCUIT
5 V
V
CC
DRAIN
LGND
SRCLR
SER IN
R
L
= 95 Ω
C
L
= 30 pF
(see Note B)
VOLTAGE WAVEFORMS
G
Output
SRCK
RCK
Word
Generator
(see Note A)
76543210
5 V
SRCK
5 V
G
5 V
SER IN
RCK
SRCLR
5 V
5 V
DUT
PGND
24 V
DRAIN1
24 V
0 V
0 V
0 V
0.5 V
0 V
19 1, 10, 11, 20
8
13
3
12
9
0 V
4−7,
14−17
I
D
2
Figure 1. Resistive Load Operation
4−7,
14−17
TEST CIRCUIT
SWITCHING TIMES
G
5 V
50%
24 V
0.5 V
90%
10%
t
PLH
t
r
50%
90%
10%
t
PHL
t
f
SRCK
5 V
50%
SER IN
5 V
50%
50%
t
su
t
h
t
w
INPUT SETUP AND HOLD WAVEFORMS
5 V 24 V
V
CC
DRAIN
LGND
SRCLR
SER IN
R
L
= 95 Ω
C
L
= 30 pF
(see Note B)
G
Output
SRCK
RCK
DUT
PGND
Output
Word
Generator
(see Note A)
19
1, 10, 11, 20
8
13
3
12
9
0 V
0 V
0 V
I
D
2
Figure 2. Test Circuit, Switching Times, and Voltage Waveforms
NOTES: A. Outputs DRAIN 1, 2, 5, and 6 low (PGND), all other DRAIN outputs are at 24 V. The word generator has the following characteristics:
t
r
≤ 10 ns, t
f
≤ 10 ns, t
w
= 300 ns, pulsed repetition rate (PRR) = 5 kHz, Z
O
= 50 Ω.
B. C
L
includes probe and jig capacitance.