Datasheet

AD5124/AD5144/AD5144A Data Sheet
Rev. A | Page 18 of 36
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
0
50
100
INL (LSB)
CODE (Decimal)
10877-018
10kΩ, –40°C
10kΩ, +25°C
10k
Ω, +125°C
100kΩ,
–4
0°C
100kΩ, +
2
5°C
100kΩ, +12
5
°C
Figure 18. INL vs. Code (AD5124)
10877-019
–50
0
50
100
150
200
250
300
350
400
450
POTENTIOMETER MODE TEMPERATURE
COEFFICIENT (ppm/°C)
CODE (Decimal)
100kΩ
10kΩ
0 50 100 150 200 255
0 25 50 75 100 127
AD5124
AD5144/
AD5144A
Figure 19. Potentiometer Mode Temperature Coefficient ((ΔV
W
/V
W
)/ΔT × 10
6
)
vs. Code
0
100
200
300
400
500
600
700
800
–40 10 60 125110
CURRENT (nA)
TEMPERATURE (°C)
10877-020
I
DD
, V
DD
= 2.3V
I
DD
, V
DD
= 3.3V
I
DD
, V
DD
= 5V
I
LOGIC
, V
LOGIC
= 2.3V
I
LOGIC
, V
LOGIC
= 3.3V
I
LOGIC
, V
LOGIC
= 5V
V
DD
= V
LOGIC
V
SS
= GND
Figure 20. 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)
10877-021
10kΩ, –40°C
10kΩ, +25°C
10kΩ, +125°C
100kΩ, –40°C
100kΩ, +25°C
100kΩ, +125°C
Figure 21. DNL vs. Code (AD5124)
AD5124
AD5144/
AD5144A
–50
0
50
100
150
200
250
300
350
400
450
RHEO
STA
T MODE TEMPERATURE
COEFFICIENT (ppm/°C)
10kΩ
100kΩ
10877-122
CODE (Decimal)
0 50 100 150 200 255
0 25 50 75 100 127
Figure 22. 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
LOGIC
CURRENT (µA)
INPUT VOLATGE (V)
10877-023
I
2
C, V
LOGIC
= 1.8V
I
2
C, V
LOGIC
= 2.3V
I
2
C, V
LOGIC
= 3.3V
I
2
C, V
LOGIC
= 5V
I
2
C, V
LOGIC
= 5.5V
SPI, V
LOGIC
= 1.8V
SPI, V
LOGIC
= 2.3V
SPI, V
LOGIC
= 3.3V
SPI, V
LOGIC
= 5V
SPI, V
LOGIC
= 5.5V
Figure 23. I
LOGIC
Current vs. Digital Input Voltage