Datasheet

DS2438
28 of 29
ELECTRICAL CHARACTERISTICS: DIGITAL THERMOMETER
(-40°C to +85°C; 2.4V £ VDD £ 10.0V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Thermometer Error (T
ACTUAL
-
T
MEASURED
)
T
ERR
±2
°C
Conversion Time t
CONVT
3 10 ms
ELECTRICAL CHARACTERISTICS: VOLTAGE A/D CONVERTER
(-40°C to +85°C; 2.4V £ VDD £ 10.0V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
A/D Error VDD
ERR
VAD
ERR
VDD input
VAD input
±10
±25
±50
±75
mV
V
AD
Input Range V
ADR
1.5V 10.0 V 1
V
DD
Input Range V
DDR
2.4 10.0 V 1
Conversion Time t
CONVV
3 10 ms
No Missing Code
Temperature Range
-40 +85
°C
ELECTRICAL CHARACTERISTICS: CURRENT A/D CONVERTER
(-40°C to +85°C; 2.4V £ VDD £ 10.0V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNI
TS
NOTES
Current Measurement Input
Range (V
SENS+
- V
SENS-
)
IAD
RANGE
250 mV
Current Measurement Error IAD
ERR
|V
SENS+
- V
SENS-
|
£ 125 mV
±2
1
LSB
%
3
ELECTRICAL CHARACTERISTICS: RTC COUNTER
(-40°C to +85°C; 2.4V £ VDD £ 10.0V)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES
Clock Error RTC
ERR
0°C to +70°C 1 3
%
Resolution 1 sec