DAC08
10
8
6
RELATIVE OUTPUT (dB)
2.0
4
2
0
–2
–4
–6
–8
R14 = R15 = 1kΩ
R
L
≤
500V
ALL BITS ON
V
R15
= 0V
1.6
1
C
C
= 15pF, V
IN
= 2.0V p-p
CENTERED AT +1.0V
LARGE SIGNAL
C
C
= 15pF, V
IN
= 50mV p-p
CENTERED AT +200mV
SMALL SIGNAL
0.2
0.5
2.0
1.0
FREQUENCY (MHz)
5.0
10.0
V
TH
–V
LC
(V)
2
1.2
0.8
–10
–12
–14
0.1
0.4
00268-C-014
0
–50
0
50
100
TEMPERATURE (°C)
150
Figure 13. Reference Input Frequency Response
Figure 16. V
TH
− V
LC
vs. Temperature
4.0
T
A
= T
MIN
TO T
MAX
3.6
3.2
OUTPUT CURRENT (mA)
4.0
ALL BITS ON
T
A
= T
MIN
TO T
MAX
3.6
3.2
ALL BITS ON
2.8
2.4
NOTE: POSITIVE COMMON-MODE
RANGE IS ALWAYS (V+) –1.5V
V– = –15V
V– = –5V
V+ = +15V
I
REF
= 2mA
OUTPUT CURRENT (mA)
2.8
2.4
V– = –15V
2.0
1.6
1.2
0.8
I
REF
= 1mA
V– = –5V
I
REF
= 2mA
2.0
1.6
1.2
0.8
0.4
0
–14
–10
–6
I
REF
= 0.2mA
00268-C-015
I
REF
= 1mA
0.4
0
–14
–10
–6
I
REF
= 0.2mA
00268-C-018
00268-C-019
–2
2
6
10
14
V
15
, REFERENCE COMMON-MODE VOLTAGE (V)
18
–2
2
6
OUTPUT VOLTAGE (V)
10
14
18
Figure 14. Reference Amp Common-Mode Range
Figure 17. Output Current vs. Output Voltage (Output Voltage Compliance)
10
28
24
8
OUTPUT VOLTAGE (V)
20
16
12
8
4
0
–4
–8
SHADED AREA INDICATES PERMISSIBLE
OUTPUT VOLTAGE RANGE FOR V– = –15V.
I
REF
≤
2.0mA.
FOR OTHER V– OR I
REF
,
SEE OUTPUT CURRENT VS. OUTPUT
VOLTAGE CURVE.
LOGIC INPUT (µA)
6
4
2
0
–12
00268-C-016
–12
–50
0
50
100
TEMPERATURE (°C)
150
–8
–4
0
4
8
LOGIC INPUT VOLTAGE (V)
12
16
Figure 15. Logic Input Current vs. Input Voltage
Figure 18. Output Voltage Compliance vs. Temperature
Rev. C | Page 9 of 20
00268-C-017
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