Rainbow-electronics DS1854 Instrukcja Użytkownika Strona 3

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DS1854
Dual Temperature-Controlled Resistors with
Two Monitors
_____________________________________________________________________ 3
PARAMETER
SYMBOL
CONDITIONS TYP MAX UNITS
Thermometer Error T
ERR
-40°C to +95°C ±3.0 °C
DIGITAL THERMOMETER
(V
CC
= 3.0V to 5.5V, T
A
= -40°C to +95°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Input Resolution
VMON 610
µV
Supply Resolution V
CC
1.6 mV
Input/Supply Accuracy A
CC
0.25 0.5
% FS
(full scale)
Update Rate for MON1, MON2,
Temp, or V
CC
t
frame
20 30 ms
ANALOG VOLTAGE MONITORING
(V
CC
= 3.0V to 5.5V, T
A
= -40°C to +95°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Position 00h Resistance T
A
= +25°C 0.7 1.0
1.25
k
Position FFh Resistance T
A
= +25°C 40 50 60 k
Absolute Linearity (Note 6) -2 +2 LSB
Relative Linearity (Note 7) -1 +1 LSB
Temperature Coefficient (Note 8) 50
ppm/°C
High-Z Resistor Current I
RHIZ
RHIZ = V
CC
0.1 µA
ANALOG RESISTOR CHARACTERISTICS
(V
CC
= 3.0V to 5.5V, T
A
= -40°C to +95°C, unless otherwise noted.)
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