Datasheet

Data Sheet AD5781
Rev. D | Page 13 of 28
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
5.0 5.5 6.0 6.5 7.0 7.5
8.0 8.5
9.0
9.5
10.0
V
REFP
/|V
REFN
| (V)
ZERO-SCALE ERROR (LSB)
09092-030
T
A
= 25°C
V
DD
= +15V
V
SS
= –15V
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
Figure 29. Zero-Scale Error vs. Reference Voltage
0.03
0.02
0.01
0
–0.01
–0.02
–0.03
–0.04
–0.05
5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0
V
REFP
/|V
REFN
| (V)
MID-SCALE ERROR (LSB)
09092-031
T
A
= 25°C
V
DD
= +15V
V
SS
= –15V
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
Figure 30. Midscale Error vs. Reference Voltage
0.04
0.03
0.02
0.01
0
–0.01
–0.02
–0.03
–0.04
5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0
V
REFP
/|V
REFN
| (V)
FULL-SCALE ERROR (LSB)
09092-032
T
A
= 25°C
V
DD
= +15V
V
SS
= –15V
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
Figure 31. Full-Scale Error vs. Reference Voltage
–0.30
–0.35
–0.40
–0.45
–0.50
–0.55
–0.60
5.0 5.5
6.0 6.5
7.0 7.5
8.0
8.5 9.0
9.5 10.0
V
REFP
/|V
REFN
| (V)
GAIN ERROR (ppm FSR)
09092-033
T
A
= 25°C
V
DD
= +15V
V
SS
= –15V
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
Figure 32. Gain Error vs. Reference Voltage
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–0.6
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
FULL-SCALE ERROR (LSB)
09092-034
±10V SPAN
+10V SPAN
±5V SPAN
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
V
DD
= +15V
V
SS
= –15V
V
REFP
= +10V
V
REFN
= –15V
Figure 33. Full-Scale Error vs. Temperature
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
–55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
MID-SCALE ERROR (LSB)
09092-035
±10V SPAN
+10V SPAN
±5V SPAN
AD8676 REFERENCE BUFFERS
AD8675 OUTPUT BUFFER
V
DD
= +15V
V
SS
= –15V
V
REFP
= +10V
V
REFN
= –15V
Figure 34. Midscale Error vs. Temperature