DAC8822_07 Datasheet, PDF (14/24 Pages) Burr-Brown (TI) – 16-Bit, Dual, Parallel Input, Multiplying Digital-to-Analog Converter

DAC8822
SBAS390A – DECEMBER 2006 – REVISED MARCH 2007
TYPICAL CHARACTERISTICS: V_DD = +2.7V and +5V
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180
160
140
120
100
80
60
40
20
0
0
SUPPLY CURRENT
vs LOGIC INPUT VOLTAGE
V_DD = +5.0V
V_DD = +2.7V
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Logic Input Voltage (V)
Figure 34.
6
0
-6
-12
-18
-24
-30
-36
-42
-48
-54
-60
-66
-72
-78
-84
-90
-96
-102
-108
-114
10
REFERENCE MULTIPLYING BANDWIDTH
UNIPOLAR MODE
0x0000
0xFFFF
0x8000
0x4000
0x2000
0x1000
0x0800
0x0400
0x0200
0x0100
0x0080
0x0040
0x0020
0x0010
0x0008
0x0004
0x0002
0x0001
100 1k 10k 100k 1M 10M 100M
Bandwidth (Hz)
Figure 35.
6
0
-6
-12
-18
-24
-30
-36
-42
-48
-54
-60
-66
-72
-78
-84
-90
-96
-102
-108
-114
10
REFERENCE MULTIPLYING BANDWIDTH
BIPOLAR MODE
DAC 0V output
limited by bipolar
zero error to
–96dB typical
(–76dB max).
Codes from Midscale
to Positive Full-Scale
0xFFFF
0xC000
0xA000
0x9000
0x8800
0x8400
0x8200
0x8100
0x8080
0x8040
0x8020
0x8010
0x8008
0x8004
0x8002
0x8001
0x8000
100 1k 10k 100k 1M 10M 100M
Bandwidth (Hz)
Figure 36.
6
0
-6
-12
-18
-24
-30
-36
-42
-48
-54
-60
-66
-72
-78
-84
-90
-96
-102
-108
-114
10
REFERENCE MULTIPLYING BANDWIDTH
BIPOLAR MODE
DAC 0V output
limited by bipolar
zero error to
–96dB typical
(–76dB max).
Codes from Negative
Full-Scale to Midscale
0x0000
0x4000
0x6000
0x7000
0x7800
0x7C00
0x7E00
0x7F00
0x7F80
0x7FC0
0x7FE0
0x7FF0
0x7FF8
0x7FFC
0x7FFE
0x7FFF
0x8000
100 1k 10k 100k 1M 10M 100M
Bandwidth (Hz)
Figure 37.
SUPPLY CURRENT vs TEMPERATURE
6
DAC SETTLING TIME
5
V_DD = 5.0V
4
3
V_DD = 2.7V
2
1
Unipolar Mode
Voltage Output Settling
Trigger Pulse
0
-50 -30 -10 10 30 50 70
Temperature (°C)
Figure 38.
90 110 130
Time (0.5ms/div)
Figure 39.
14
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