C
ꢂ74ꢀ4/ ꢂ74ꢀ.
SPE°IFI° TIONSC
TA = TMIN to TMAX, VDD = 2.7 V to 5.5 V, unless otherwise noted. Temperature range as follows: A version = −40°C to +125°C.
Table 1.
Parameter
A Version
Unit
Test Conditions/Comments
TEMPERATURE SENSOR AND ADC
Accuracy1
0.ꢀ
°C typ
°C max
°C max
°C max
°C max
°C typ
°C max
°C typ
°C max
°C typ
Bits
VDD = 3 V @ +40°C
VDD = 3 V @ +40°C
−0.87 to +0.822
1.ꢀ
2.0
3.0
2.0
1.87
2.0
3.0
3.0
10
VDD = 3 V @ −40°C to +70°C
VDD = 3 V @ −40°C to +8ꢀ°C
VDD = 3 V @ −40°C to +12ꢀ°C
VDD = 3 V @ −40°C to +12ꢀ°C
VDD = ꢀ.ꢀ V @ +40°C
VDD = ꢀ.ꢀ V @ −40°C to +8ꢀ°C
VDD = ꢀ.ꢀ V @ −40°C to +8ꢀ°C
VDD = ꢀ.ꢀ V @ −40°C to +12ꢀ°C
2
Resolution
Update Rate, tR
Temperature Conversion Time
800
2ꢀ
ms typ
µs typ
POWER SUPPLIES
Supply Current3
Peak Supply Current4
Supply Current – Nonconverting
Inactive Serial Busꢀ
Normal Mode @ 3 V
Normal Mode @ ꢀ V
Active Serial Bus6
1.2
900
mA typ Current during conversion
µA max Peak current between conversions
169
188
µA typ
µA typ
Supply current with serial bus inactive. Part not
converting and D7 of configuration register = 0.
Normal Mode @ 3 V
Normal Mode @ ꢀ V
Shutdown Mode
180
214
3
µA typ
µA typ
Supply current with serial bus active. Part not
converting and D7 of configuration register = 0.
µA max D7 of configuration register = 1. Typical values
are 0.04 µA at 3 V and 0.ꢀ µA at ꢀ V.
DIGITAL INPUT
Input High Voltage, VIH
Input Low Voltage, VIL
Input Current, IIN
2.4
0.8
1
V min
V max
7
µA max VIN = 0 V to VDD
pF max All digital inputs
Input Capacitance, CIN
10
DIGITAL OUTPUT (OPEN-DRAIN)
Output High Voltage, VOH
Output Low Voltage, VOL
Output High Current, IOH
Output Capacitance, COUT
ALERT Output Saturation Voltage
AC ELECTRICAL CHARACTERISTICS8, 9
Serial Clock Period, t1
Data In Setup Time to SCL High, t2
Data Out Stable after SCL Low, t3
2.4
0.4
1
10
0.8
V min
V max
µA max VOH = ꢀ V
pF max Typ = 3 pF
V max
IOL = 1.6 mA
IOUT = 4 mA
2.ꢀ
ꢀ0
0
µs min
ns min
ns min
See Figure 2
See Figure 2
See Figure 2
Rev. E | Page 3 of 20