Typical Performance Characteristics; Changes To Typical Performance Characteristics; Additional Test Circuit (Figure 36) - Analog Devices AD5235 Manual

TYPICAL PERFORMANCE CHARACTERISTICS

1.0
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
0 200 400
DIGITAL CODE
Figure 5. INL vs. Code, T = −40°C, +25°C, +85°C Overlay, R
A
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
–1.2
–1.4
0 200 400
DIGITAL CODE
Figure 6. DNL vs. Code, T = −40°C, +25°C, +85°C Overlay, R
A
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
0 200 400
DIGITAL CODE
Figure 7. R-INL vs. Code, T = −40°C, +25°C, +85°C Overlay, R
A
+25°C
–40°C
+85°C
600 800 1000
= 25 kΩ
AB
+25°C
–40°C
+85°C
600 800 1000
= 25 kΩ
AB
+25°C
–40°C
+85°C
600 800 1000
= 25 kΩ
AB
Rev. B | Page 9 of 28
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
0 200 400
DIGITAL CODE
Figure 8. R-DNL vs. Code, T = −40°C, +25°C, +85°C Overlay, R
A
70
60
50
25kΩ VERSION
40
250kΩ VERSION
30
20
10
0
–10
–20
–30
0 128 256 384 512
CODE (Decimal)
6
Figure 9. (∆V /V )/∆T × 10
W W
120
100
80
60
40
20
0
–20
25kΩ VERSION
–40
250kΩ VERSION
–60
–80
0 128 256 384 512
CODE (Decimal)
Figure 10. (∆R /R )/∆T × 10
WB WB
AD5235
+25°C
–40°C
+85°C
600 800 1000
= 25 kΩ
AB
V /V = 5V/0V
DD SS
T = 25°C
A
640 768 896 1023
Potentiometer Mode Tempco
V /V = 5V/0V
DD SS
T = 25°C
A
640 768 896 1023
6
Rheostat Mode Tempco