
DS1859
Dual, Temperature-Controlled Resistors with
Internally Calibrated Monitors
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(V
CC
= 5.0V, T
A
= +25°C, for both 50kΩ and 20kΩ versions, unless otherwise noted.)
POSITION FFh RESISTANCE
vs. TEMPERATURE
DS1859 toc14
TEMPERATURE (°C)
RESISTANCE (kΩ)
80655035205-10-25
51.20
51.40
51.60
51.80
52.00
51.00
-40 95
50kΩ VERSION
POSITION FFh RESISTANCE
vs. TEMPERATURE
DS1859 toc15
TEMPERATURE (°C)
RESISTANCE (kΩ)
80655035205-10-25
19.20
19.40
19.50
19.80
20.00
19.00
-40 95
20kΩ VERSION
TEMPERATURE COEFFICIENT vs. SETTING
DS1859 toc16
SETTING (DEC)
TEMPERATURE COEFFICIENT (ppm/°C)
20015010050
100
50
0
-50
150
200
250
300
350
400
-100
0250
50kΩ VERSION
+25°C TO +95°C
+25°C TO -40°C
TEMPERATURE COEFFICIENT vs. SETTING
DS1859 toc17
SETTING (DEC)
TEMPERATURE COEFFICIENT (ppm/°C)
20015010050
100
0
200
300
400
500
600
700
800
-100
0250
+25°C TO +95°C
+25°C TO -40°C
20kΩ VERSION
LSB ERROR vs. FULL-SCALE INPUT
DS1859 toc18
NORMALIZED FULL SCALE (%)
LSB ERROR
755025
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
-8
0100
+3 SIGMA
-3 SIGMA
MEAN
LSB ERROR vs. FULL-SCALE INPUT
DS1859 toc19
NORMALIZED FULL SCALE (%)
LSB ERROR
9.3756.2503.125
-3
-2
-1
0
1
2
3
-4
0 12.500
+3 SIGMA
-3 SIGMA
MEAN
POSITION 00h RESISTANCE
vs. TEMPERATURE
DS1859 toc13
TEMPERATURE (°C)
RESISTANCE (kΩ)
80655035205-10-25
0.34
0.35
0.36
0.37
0.38
0.33
-40 95
20kΩ VERSION
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