參數(shù)資料
型號(hào): ADT7482ARMZ-U2
廠商: ON SEMICONDUCTOR
元件分類: 溫度/濕度傳感器
英文描述: DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 2.5Cel, SQUARE, SURFACE MOUNT
封裝: LEAD FREE, MO-187-BA, MSOP-10
文件頁數(shù): 18/24頁
文件大?。?/td> 335K
代理商: ADT7482ARMZ-U2
ADT7482
Rev. 1 | Page 3 of 24 | www.onsemi.com
SPECIFICATIONS
TA = 40°C to +120°C , VDD = 3 V to 3.6 V, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions
POWER SUPPLY
Supply Voltage, VDD
3.0
3.30
3.6
V
Average Operating Supply Current, IDD
240
350
μA
0.0625 conversions/sec rate1
5
30
μA
Standby mode
Undervoltage Lockout Threshold
2.55
V
VDD input, disables ADC, rising edge
Power-On Reset Threshold
1
2.5
V
TEMPERATURE-TO-DIGITAL CONVERTER
Local Sensor Accuracy
±1
°C
0°C ≤ TA ≤ +70°C
±1.5
°C
0°C ≤ TA ≤ +85°C
±2.5
°C
40°C ≤ TA ≤ +100°C
Resolution
1
°C
Remote Diode Sensor Accuracy
±1
°C
0°C ≤ TA ≤ +70°C, 55°C ≤ TD2 ≤ +150°C
±1.5
°C
0°C ≤ TA ≤ +85°C, 55°C ≤ TD2 ≤ +150°C
±2.5
°C
40°C ≤ TA ≤ +100°C, 55°C ≤ TD2 ≤ +150°C
Resolution
0.25
°C
Remote Sensor Source Current
220
μA
High level3
82
μA
Mid level3
13.5
μA
Low level2
Maximum Series Resistance Cancelled
1.5
Resistance split evenly on D+ and D lines
Conversion Time
71
93
ms
From stop bit to conversion complete (all channels) one-shot mode
with averaging switched on
11.5
15
ms
One-shot mode with averaging off (that is, conversion rate = 16, 32,
or 64 conversions per second)
OPEN-DRAIN DIGITAL OUTPUTS
(THERM, ALERT/THERM2)
Output Low Voltage, VOL
0.4
V
IOUT = 6.0 mA
High Level Output Leakage Current, IOH
0.1
1
μA
VOUT = VDD
SMBus INTERFACE3, 4
Logic Input High Voltage, VIH
2.1
V
SCLK, SDATA
Logic Input Low Voltage, VIL
0.8
V
SCLK, SDATA
Hysteresis
500
mV
SDA Output Low Voltage, VOL
0.4
V
IOUT = 6.0 mA
Logic Input Current, IIH, IIL
1
+1
μA
SMBus Input Capacitance, SCLK, SDATA
5
pF
SMBus Clock Frequency
400
kHz
SMBus Timeout5
25
64
ms
User programmable
SCLK Falling Edge to SDATA Valid Time
1
μs
Master clocking in data
1 See Table 11 for conversion rates.
2 Guaranteed by characterization, but not production tested.
3 Guaranteed by design, but not production tested.
4 See the Timing Specifications section for more information.
5 Disabled by default. For details on enabling the SMBus, see the Serial Bus Interface section.
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