Rainbow Electronics DS1841 - Manual (Page 3)

DS1841
Temperature-Controlled, NV, I 2 C,
Logarithmic Resistor
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TEMPERATURE SENSOR CHARACTERISTICS
(V CC = +2.7V to +5.5V, T A = -40°C to +100°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Temperature Error ±5 °C
Update Rate (Temperature and
Supply Conversion Time)
t FRAME 16 ms
ANALOG VOLTAGE MONITORING CHARACTERISTICS
(V CC = +2.7V to +5.5V, T A = -40°C to +100°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Resolution LSB Full-scale voltage of 6.5536V 25.6 mV
Input/Supply Accuracy A CC At factory setting 0.25 1.0
% FS
(Full
Scale)
Update Rate (Temperature and
Supply Conversion Time)
t FRAME 16 ms
I 2 C AC ELECTRICAL CHARACTERISTICS (See Figure 3)
(V CC = +2.7V to +5.5V, T A = -40°C to +100°C, timing referenced to V IL(MAX) and V IH(MIN) .)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SCL Clock Frequency f SCL (Note 6) 0 400 kHz
Bus Free Time Between STOP
and START Conditions
t BUF 1.3 μs
Hold Time (Repeated) START
Conditions
t
HD:STA
0.6 μs
Low Period of SCL t LOW 1.3 μs
High Period of SCL t HIGH 0.6 μs
Data Hold Time t HD:DAT 0 0.9 μs
Data Setup Time t SU:DAT 100 ns
START Setup Time t SU:STA 0.6 μs
SDA and SCL Rise Time t R (Note 7)
20 +
0.1C B
300 ns
SDA and SCL Fall Time t F (Note 7)
20 +
0.1C B
300 ns
STOP Setup Time t SU:STO 0.6 μs
SDA and SCL Capacitive
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C B (Note 7) 400 pF