Data Sheet ADT75
Rev. B | Page 5 of 24
B GRADE
T
A
= T
MIN
to T
MAX
, V
DD
= 2.7 V to 5.5 V. All specifications for −55°C to +125°C, unless otherwise noted.
Table 2.
Parameter Min Typ Max Unit Test Conditions/Comments
TEMPERATURE SENSOR AND ADC
Accuracy at V
= 2.7 V to 5.5 V ±1 °C T
= 0°C to +70°C
±2 °C T
= −25°C to +100°C
±3 °C T
= −55°C to +100°C
Accuracy at V
= 2.7 V to 3.6 V ±3 °C T
= 100°C to 125°C
Accuracy at V
DD
= 4.5 V to 5.5 V
ADC Resolution 12 bits
Temperature Resolution 0.0625 °C
Temperature Conversion Time 60 ms
Update Rate 100 ms Conversion started every 100 ms
Drift over 10 years, if part is operated at 55°C
Temperature Hysteresis 0.03 °C Temperature cycle = 25°C to 125°C to 25°C
OS/ALERT OUTPUT (OPEN DRAIN)
Output Low Voltage, V
0.4 V I
= 3 mA
Pin Capacitance 10 pF
High Output Leakage Current, I
0.1 5 µA OS/ALERT pin pulled up to 5.5 V
R
Resistance (Low Output) 15 Ω Supply and temperature dependent
DIGITAL INPUTS
Input Current ±1 µA V
= 0 V to V
Input Low Voltage, V
0.3 × V
V
Input High Voltage, V
0.7 × V
V
SCL, SDA Glitch Rejection 50 ns Input filtering suppresses noise spikes of less than 50 ns
Pin Capacitance 3 10 pF
DIGITAL OUTPUT (OPEN DRAIN)
Output High Current, I
1 mA V
= 5 V
Output Low Voltage, V
0.4 V I
= 3 mA
Output High Voltage, V
0.7 × V
V
Output Capacitance, C
3 10 pF
POWER REQUIREMENTS
Supply Voltage 2.7 5.5 V
Supply Current at 3.3 V 350 500 µA Peak current while converting and I
2
C interface inactive
Supply Current at 5.0 V 380 525 µA Peak current while converting and I
2
C interface inactive
2
Part converting and I
2
C interface inactive
Shutdown Mode at 3.3 V 3 8 µA Supply current in shutdown mode
Shutdown Mode at 5.0 V 5.5 12 µA Supply current in shutdown mode
Average Power Dissipation 798.6 µW V
= 3.3 V, normal mode at 25°C
1 SPS 78.6 µW Average power dissipated for V
DD
= 3.3 V,
shutdown mode at 25°C
140 µW Average power dissipated for V
DD
= 5.0 V,
shutdown mode at 25°C
