DAC08
TYPICAL PERFORMANCE CHARACTERISTICS
ALL BITS SWITCHED ON
1V
2.4V
1V
2.5V
0.4V
0.5V
–0.5mA
I
OUT
–1/2LSB
OUTPUT
0V
SETTLING +1/2LSB
00268-C-008
–2.5mA
100mV
R
EQ
≈
200Ω
R
L
= 100Ω
C
C
= 0
200ns/DIVISION
200ns
10mV
SETTLING TIME FIXTURE
I
FS
= 2mA, R
L
= 1kΩ
1/2LSB = 4µA
50ns
50ns/DIVISION
Figure 7. Fast Pulsed Reference Operation
5
Figure 10. Full-Scale Settling Time
T
A
= T
MIN
TO T
MAX
ALL BITS HIGH
0mA
I
OUT
I
FS
, OUTPUT CURRENT (mA)
4
LIMIT FOR
V– = –15V
3
1.0mA
2
LIMIT FOR
V– = –5V
2.0mA
I
OUT
00268-C-009
1
0
(0000|0000)
I
REF
= 2mA
(1111|1111)
0
1
2
3
4
I
REF
, REFERENCE CURRENT (mA)
5
Figure 8. True and Complementary Output Operation
Figure 11. Full-Scale Current vs. Reference Current
500
5mV
2V
400
PROPAGATION DELAY (ns)
2.4V
300
0.4V
0V
200
1LSB = 7.8µA
8µA
0
00268-C-010
100
1LSB = 61nA
0
0.005 0.01 0.02
0.05 0.10 0.20
0.50 1.00 2.00
5.00 10.00
00268-C-013
100mV
50ns/DIVISION
50ns
I
FS
, OUTPUT FULL-SCALE CURRENT (mA)
Figure 9. LSB Switching
Figure 12. LSB Propagation Delay vs. I
FS
Rev. C | Page 8 of 20
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00268-C-011
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