Datasheet

AD5791 Data Sheet
Rev. D | Page 10 of 28
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0 200000
400000 600000 800000
1000000
DAC CODE
DNL ERROR (LSB)
08964-012
V
REFP
= +5V
V
REFN
= 0V
V
DD
= +15V
V
SS
= –15V
T
A
= +125°C
T
A
= +25°C
T
A
= –40°C
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
Figure 11. Differential Nonlinearity Error vs. DAC Code, 5 V Span
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0 200000 400000 600000 800000 1000000
DAC CODE
DNL ERROR (LSB)
08964-013
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
V
REFP
= +10V
V
REFN
= 0V
V
DD
= +15V
V
SS
= –15V
T
A
= +25°C
T
A
= –40°C
T
A
= +125°C
Figure 12. Differential Nonlinearity Error vs. DAC Code, ±10 V Span,
X2 Gain Mode
1.0
1.5
2.0
0.5
0
–0.5
–1.0
–1.5
–55 –35 –15 5 25 45 65
85 105 125
TEMPERATURE (°C)
INL ERROR (LSB)
08964-014
±10V SP
AN MAX INL
+5V SP
AN MAX INL
+10V SP
AN MIN INL
+10V SPAN MAX IN
L
±10V S
PAN MIN INL
+5V SP
AN MIN INL
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
V
DD
= +15V
V
SS
= –15V
Figure 13. Integral Nonlinearity Error vs. Temperature
1.0
0.5
0
–0.5
–1.0
–1.5
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
DNL ERROR (LSB)
08964-015
±10V SPAN MAX DNL
+5V SPAN MAX DNL
+10V SPAN MIN DNL
+10V SPAN MAX DNL
±10V SPAN MIN DNL
+5V SPAN MIN DNL
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
V
DD
= +15V
V
SS
= –15V
Figure 14. Differential Nonlinearity Error vs. Temperature
0.6
0.5
0.4
0.3
0.2
0.1
0
–0.2
–0.1
–0.3
12.5 13.0
13.5 14.0
14.5 15.0 15.5 16.0
16.5
V
DD
/|V
SS
| (V)
INL ERROR (LSB)
08964-016
T
A
= 25°C
V
REFP
= +10V
V
REFN
= –10V
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
INL MAX
INL MIN
Figure 15. Integral Nonlinearity Error vs. Supply Voltage, ±10 V Span
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.5 15.5 16.5
V
DD
(V)
INL ERROR (LSB)
–2.5 –3.9 –5.3 –6.7 –9.1 –10.5 –12.9 –14.2 –15.5 –16.5
V
SS
(V)
08964-017
T
A
= 25°C
V
REFP
= +5V
V
REFN
= 0V
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
INL MAX
INL MIN
Figure 16. Integral Nonlinearity Error vs. Supply Voltage, 5 V Span