Rainbow Electronics DS1858 - Manual (Page 3)

DS1858
Dual Temperature-Controlled Resistors with
Three Monitors
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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,
MON3, Temp, or V
CC
t frame 25 36 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 Ω
Position FFh Resistance T
A
= +25°C 40 50 60 k Ω
Absolute Linearity (Note 6) -2 +2 LSB
Relative Linearity (Note 7) -1 +1 LSB
Temperature Coefficient (Note 8) 50 ppm/°C
ANALOG RESISTOR CHARACTERISTICS
(V CC = 3.0V to 5.5V, T A = -40°C to +95°C, unless otherwise noted.)