
DS1854
Dual Temperature-Controlled Resistors with
Two Monitors
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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.)
SYMBOL
MIN TYP MAX
∆VMON 610
µV
Supply Resolution ∆V
CC
1.6 mV
Input/Supply Accuracy A
CC
0.25 0.5
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.)
SYMBOL
MIN TYP MAX
Position 00h Resistance T
A
= +25°C 0.7 1.0
1.25
kΩ
Position FFh Resistance T
A
= +25°C 40 50 60 kΩ
Absolute Linearity (Note 6) -2 +2 LSB
Relative Linearity (Note 7) -1 +1 LSB
Temperature Coefficient (Note 8) 50
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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