Rainbow Electronics DS1859 - Manual (Page 3)

DS1859
Dual, Temperature-Controlled Resistors with
Internally Calibrated Monitors
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Thermometer Error T ERR -40°C to +95°C ±3.0 °C
DIGITAL THERMOMETER
(V
CC
= 2.97V to 5.5V, T
A
= -40°C to +95°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
EEPROM Writes +70°C 50,000
NONVOLATILE MEMORY CHARACTERISTICS
(V CC = 2.97V to 5.5V)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Resolution ∆VMON 610 µV
Supply Resolution ∆V
CC 1.6 mV
Input/Supply Accuracy
(MON1, MON2, MON3, V
CC )
A CC At factory setting 0.25 0.5
% FS
(full scale)
Update Rate for MON1, MON2,
MON3, Temp, or V
CC
t frame 30 45 ms
Input/Supply Offset
(MON1, MON2, MON3, V
CC )
V
OS
(Note 14) 0 5 LSB
ANALOG VOLTAGE MONITORING
(V CC = 2.97V to 5.5V, T A = -40°C to +95°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Position 00h Resistance (50k Ω) T A = +25°C 0.65 1.0 1.35 k Ω
Position FFh Resistance (50k Ω) T A = +25°C 40 50 60 k Ω
Position 00h Resistance (20k Ω) T A = +25°C 0.20 0.40 0.55 k Ω
Position FFh Resistance (20k Ω) T A = +25°C 16 20 24 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 = 2.97V to 5.5V, T A = -40°C to +95°C, unless otherwise noted.)