Data Sheet
ADT7310
Rev. A | Page 3 of 24
SPECIFICATIONS
T
A
= 55癈 to +150癈; V
DD
= 2.7 V to 5.5 V; unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
TEMPERATURE SENSOR AND ADC
Accuracy
1
0.05
?.4
2
癈
TA = 40癈 to +105癈, VDD = 3.0 V
?.44 癈
TA = 40癈 to +105癈, VDD = 2.7 V to 3.3 V
?.5
癈
TA = 55癈 to +125癈, VDD = 3.0 V
?.5
癈
T
A
= 40癈 to +105癈, V
DD
= 2.7 V to 3.6 V
?.7
癈
T
A
= 55癈 to +150癈, V
DD
= 2.7 V to 3.6 V
?.8
癈
T
A
= 40癈 to +105癈, V
DD
= 4.5 V to 5.5 V
?.0
癈
T
A
= 55癈 to +150癈, V
DD
= 2.7 V to 5.5 V
ADC Resolution
13
Bits
Twos complement temperature value of sign bit plus 12 ADC bits
(power-up default resolution)
16
Bits
Twos complement temperature value of sign bit plus 15 ADC bits
(Bit 7 = 1 in the configuration register)
Temperature Resolution
13-Bit
0.0625
癈
13-bit resolution (sign + 12-bit)
16-Bit
0.0078
癈
16-bit resolution (sign + 15-bit)
Temperature Conversion Time
240
ms
Continuous conversion and one-shot conversion mode
Fast Temperature Conversion Time
6
ms
First conversion on power-up only
1 SPS Conversion Time
60
ms
Conversion time for 1 SPS mode
Temperature Hysteresis
?.002
癈
Temperature cycle = 25癈 to 125癈, and back to 25癈
Repeatability
3
?.015
癈
TA = 25癈
DC PSRR
0.1
癈/V
T
A
= 25癈
DIGITAL OUTPUTS (OPEN DRAIN)
High Output Leakage Current, IOH
0.1
5
礎
CT and INT pins pulled up to 5.5 V
Output High Current
1
mA
VOH = 5 .5V
Output Low Voltage, VOL
0.4
V
IOL = 2 mA @ 5.5 V, IOL = 1 mA @ 3.3 V
Out ut Hi h Volta e, VOH
0.7 ?VDD
V
Output Capacitance, C
OUT
3
pF
DIGITAL INPUTS
Input Current
?
礎
VIN = 0 V to VDD
Input Low Voltage, VIL
0.4
V
Input High Voltage, VIH
0.7 ?VDD
V
Pin Capacitance
5
10
pF
DIGITAL OUTPUT (DOUT)
Output High Voltage, V
OH
V
OH
0.3
V
I
SOURCE
= I
SINK
= 200 礎
Output Low Voltage, V
OL
0.4
V
I
OL
= 200 礎
Output Capacitance, C
OUT
50
pF
POWER REQUIREMENTS
Supply Voltage
2.7
5.5
V
Supply Current
At 3.3 V
210
250
礎
Peak current while converting, SPI interface inactive
At 5.5 V
250
300
礎
Peak current while converting, SPI interface inactive
1 SPS Current
At 3.3V
46
礎
V
DD
= 3.3 V, 1 SPS mode, T
A
= 25癈
At 5.5V
65
礎
V
DD
= 5.5 V, 1 SPS mode, T
A
= 25癈
Shutdown Current
At 3.3 V
2.0
15
礎
Supply current in shutdown mode
At 5.5 V
5.2
25
礎
Supply current in shutdown mode
Power Dissipation Normal Mode
700
礧
VDD = 3.3 V, normal mode at 25癈
Power Dissipation 1 SPS
150
礧
Power dissipated for VDD = 3.3 V, TA = 25癈
1
Accuracy includes lifetime drift.
2
The equivalent 3 ?limits are ?.33癈. This 3 ?specification is provided to enable comparison with other vendors who use these limits.
3
Based on a floating average of 10 readings.
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