Datasheet

AD5291/AD5292
Rev. D | Page 17 of 32
0.03
–0.05
–0.04
–0.03
–0.02
–0.01
0
0.01
0.02
0 32 64 96 128 160 192 224 255
DNL (LSB)
CODE (Decimal)
+25°C
–40°C
+105°C
07674-021
R
AB
= 20k
Figure 36. DNL in Normal Mode vs. Code vs. Temperature (AD5291)
07674-022
450
400
350
300
250
200
150
100
50
0
–50
SUPPLY CURRENT (nA)
TEMPERATURE (°C)
–40–30–20–100 102030405060708090100
I
LOGIC
V
DD
/V
SS
= ±15V
V
LOGIC
= +5V
I
DD
I
SS
Figure 37. Supply Current (I
DD
, I
SS
, I
LOGIC
) vs. Temperature
700
600
500
400
300
200
100
0
RHEOSTAT MODE TEMPCO (ppm/°C)
07674-024
0 256 512 768 1023
0 64 128 192 255
AD5292
AD5291
CODE (Decimal)
50k
20k
100k
V
DD
= 30V,
V
SS
= 0V
Figure 38. Rheostat Mode Tempco ΔR
WB
/ΔT vs. Code
07674-206
0.03
–0.05
–0.04
–0.03
–0.02
–0.01
0
0.01
0.02
0 32 64 96 128 160 192 224 255
DNL (LSB)
CODE (Decimal)
20k
50k
100k
TEMPERATURE = 2 5°C
Figure 39. DNL in Normal Mode vs. Code vs. Temperature (AD5291)
07674-031
0.20
0.18
0.16
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY CURRENT I
LOGIC
(mA)
DIGITAL INPUT VOLTAGE (V)
V
DD
= ±15V
Figure 40. Supply Current I
LOGIC
vs. Digital Input Voltage
700
600
500
400
300
200
100
0
POTENTIOMETER MODE TEMPCO (ppm/°C)
07674-023
0 256 512 768 1023
0 64 128 192 255
AD5292
AD5291
CODE (Decimal)
V
DD
= 30V
V
SS
= 0V
50k
20k
100k
Figure 41. Potentiometer Mode Tempco ΔR
WB
/ΔT vs. Code