Datasheet

AD5123/AD5143 Data Sheet
Rev. A | Page 14 of 28
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
0
50
100
INL (LSB)
CODE (Decimal)
10kΩ, –40°C
10kΩ, +25°C
10k
Ω, +125°C
100k
Ω, –4
0°C
100kΩ, +2
5°C
100kΩ, +12
5
°C
10878-011
Figure 11. INL vs. Code (AD5123)
–50
0
50
100
150
200
250
300
350
400
450
POTENTIOMETER MODE TEMPERATURE
COEFFICIENT (ppm/°C)
100kΩ
10kΩ
10878-012
AD5123
AD5143
CODE (Decimal)
0 50 100 150 200 255
0 25 50 75 100 127
Figure 12. Potentiometer Mode Temperature Coefficient ((ΔV
W
/V
W
)/ΔT × 10
6
) vs.
Code
0
100
200
300
400
50
0
600
70
0
80
0
CURRENT (nA)
TEMPERA
TURE
(°C
)
10878-013
I
DD
, V
DD
= 2.3V
I
DD
, V
DD
= 3.3V
I
DD
, V
DD
= 5V
–4
0 10 60 1251
10
V
SS
=
G
ND
Figure 13. Supply Current vs. Temperature
–0.14
–0.12
–0.10
–0.08
–0.06
–0.04
–0.02
0
0.02
0.04
0.06
0 50 100
DNL (LSB)
CODE (Decimal)
10kΩ, –40°C
10kΩ, +25°C
10kΩ, +125°C
100kΩ, –40°C
100kΩ, +25°C
100kΩ, +125°C
10878-014
Figure 14. DNL vs. Code (AD5123)
–50
0
50
100
150
200
250
300
350
400
450
RHEOSTAT MODE TEMPERATURE
COEFFICIENT (ppm/°C)
10kΩ
100kΩ
10878-015
AD5122A
AD5142A
CODE (Decimal)
0 50 100 150 200 255
0 25 50 75 100 127
Figure 15. Rheostat Mode Temperature Coefficient ((ΔR
WB
/R
WB
)/ΔT × 10
6
)
vs. Code
0
200
400
600
800
1000
1200
0 1 2 3 4 5
I
DD
CURRENT (µA)
INPUT VOLTAGE (V)
V
DD
= 2.3V
V
DD
= 3.3V
V
DD
= 5V
V
DD
= 5.5V
10878-016
Figure 16. I
DD
Current vs. Digital Input Voltage