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| MAX1298 Datasheet, PDF (4/20 Pages) Maxim Integrated Products – 12-Bit Serial-Output Temperature Sensors with 5-Channel ADC | |||
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12-Bit Serial-Output Temperature Sensors
with 5-Channel ADC
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 4.75V to 5.25V (MAX1298), VDD = +2.7V to 3.6V (MAX1299), external reference, VREF = +2.5V (MAX1298), VREF = +1.2V
(MAX1299), fSCLK = 2.5MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
EXTERNAL VOLTAGE REFERENCE CHARACTERISTICS
Reference Voltage Range
VREF
MAX1298
MAX1299
0.8
2.5
V
0.8
1.2
REF Input Resistance
Converting
Shutdown
10
Mâ¦
25
REF Input Capacitance
24
pF
INTERNAL TEMPERATURE MEASUREMENT CHARACTERISTICS
Resolution
0.13
°C
MAX129_A
±0.75
TA = +85°C, PD = 1mW
MAX129_B
±1
MAX129_C
±1
MAX129_A
±0.75
Output Error (Notes 1, 9)
TA = 0°C to +70°C
MAX129_B
±1
°C
MAX129_C
±2
TA = -40°C to 0°C,
TA = +70°C to +85°C
MAX129_A
MAX129_B
MAX129_C
±0.75
±1
±4
Power-Supply Rejection Ratio
PSRR (Note 7)
0.2
°C/V
Noise
0.18
°CRMS
EXTERNAL TEMPERATURE MEASUREMENT CHARACTERISTICS
Output Error
2N3904 (Note 10)
±2
±4
°C
Remote Diode Excitation (1X)
10
µA
Remote Diode Excitation (10X)
100
µA
4 _______________________________________________________________________________________
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