DAC8718 Datasheet, PDF (21/60 Pages) Texas Instruments – Octal, 16-Bit, Low-Power, High-Voltage Output, Serial Input DIGITAL-TO-ANALOG CONVERTER

DAC8718
www.ti.com
SBAS467A – MAY 2009 – REVISED DECEMBER 2009
TYPICAL CHARACTERISTICS: Bipolar (continued)
At T_A = 25°C, AV_DD = 16.5V, AV_SS = –16.5V, V_REF = IOV_DD = DV_DD = 5V, gain = 6, data format=USB, unless otherwise noted.
LINEARITY ERROR
vs AV_DD AND AV_SS
DIFFERENTIAL LINEARITY ERROR
vs AV_DD AND AV_SS
4
1.0
3
DV_DD = IOV_DD = 4.5V
V_REF = 2.048V
0.8
DV_DD = IOV_DD = 4.5V
V_REF = 2.048V
Gain = 4
0.6
Gain = 4
2
INL Max
DNL Max
0.4
1
0.2
0
INL Min
-1
-2
-3
0
-0.2
DNL Min
-0.4
-0.6
-0.8
-4
4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0
AV_DD = -AV_SS (V)
-1.0
4.5 6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0
AV_DD = -AV_SS (V)
Figure 21.
Figure 22.
5
4
3
2
1
0
-1
-2
-3
-4
-5
4.5
BIPOLAR ZERO ERROR
vs AV_DD AND AV_SS
DV_DD = IOV_DD = 4.5V
V_REF = 2.048V
Gain = 4
Ch0
Ch4
Ch1
Ch5
Ch2
Ch6
Ch3
Ch7
6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0
AV_DD = -AV_SS (V)
Figure 23.
5
4
3
2
1
0
-1
-2
-3
-4
-5
4.5
BIPOLAR GAIN ERROR
vs AV_DD AND AV_SS
DV_DD = IOV_DD = 4.5V
V_REF = 2.048V
Gain = 4
Ch0
Ch4
Ch1
Ch5
Ch2
Ch6
Ch3
Ch7
6.0 7.5 9.0 10.5 12.0 13.5 15.0 16.5 18.0
AV_DD = -AV_SS (V)
Figure 24.
5
4
3
2
1
0
-1
-2
-3
-4
-5
1.0
BIPOLAR ZERO ERROR
vs REFERENCE VOLTAGE
AV_DD = +18V
AV_SS = -18V
Ch0
Ch4
Ch1
Ch5
Ch2
Ch6
Ch3
Ch7
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
V_REF (V)
Figure 25.
5
4
3
2
1
0
-1
-2
-3
-4
-5
1.0
BIPOLAR ZERO ERROR
vs REFERENCE VOLTAGE
AV_DD = +18V
AV_SS = -18V
Gain = 4
Ch0
Ch4
Ch1
Ch5
Ch2
Ch6
Ch3
Ch7
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
V_REF (V)
Figure 26.
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